Wiki source code of The FLASH HDF5 structure

Version 56.1 by sndueste on 2022/09/07 09:38
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cpassow 44.1 1 {{layout}}
2 {{layout-section ac:type="single"}}
3 {{layout-cell}}
sendels 1.1 4 == Contents ==
5
6
7
sndueste 13.1 8 {{toc/}}
sendels 1.1 9
10 \\
11
12 == General information about HDF5 ==
13
sndueste 35.1 14 HDF5 is a data format maintained by the HDF group. For detailed general information see [[here~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://portal.hdfgroup.org/display/support||shape="rect"]]
sendels 1.1 15
sndueste 35.1 16 To download the HDF5 Viewer click [[here~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://portal.hdfgroup.org/display/support/Download+HDFView||shape="rect"]]
sendels 1.1 17
18 For use on the DESY Maxwell or PAL (max-fsc or pal) **hdfview** is available in the xray module :
19 {{code language="none"}}> module load xray{{/code}}
20 {{code language="none"}}> hdfview{{/code}}
21
sndueste 49.1 22 or you can use
23
sndueste 51.1 24 {{code language="none"}}> silx view{{/code}}
sndueste 49.1 25
26 \\
27
sendels 4.1 28 [[Contents>>doc:||anchor="Contents"]]
sendels 1.1 29
sndueste 45.1 30 == The FLASH HDF5 format ==
sendels 1.1 31
sndueste 45.1 32 FLASH provides a conversion of its data acquisition (DAQ) to the commonly used [[HDF5>>url:https://www.hdfgroup.org/solutions/hdf5/||shape="rect"]] format. Correlated  data are mapped by a primary index called **train ID**. Every data set has an individual index of train IDs to identify the data even when data are missing or deviate in update rate. If the data set of choice contains gaps,  users have to decide how to treat missing values. DAQ channels are spread across various files with one file name pattern for each DAQ. This means users have to assemble data from different files if necessary.
sndueste 40.1 33
34 The hierarchy is realized using a human readable named HDF tree with each DAQ channel containing the data sets "//value//" and "//index//". Additionally, the HDF group //zraw// contains a tree of the original DAQ channel names.
35
36 Reference implementation, which follows the concept of Python libraries like Pandas, Xarray, or Dask, is given below.
37
38 \\
39
40 {{expand title="Discontinued HDF formats"}}
sndueste 47.1 41 === Comparison to FLASH's deprecated HDF formats ===
sndueste 40.1 42
43 Before 2021, FLASH provided two different HDF formats formally known as //near-online// and //offline// HDF files.
44
45 All data sets were aligned by the same global index by filling in missing data. Fast DAQ channels  (pulse synchronous data - update 10 Hz) are filled in by NaN or 0, slow channels (not pulse synchronous data - update e.g. 1 Hz ) are interpolated by the DAQs libraries, by keeping the value constant up to the next change.
46
47 While the near-online HDF files were converted live during the beamtime, the offline HDF files were manually compiled weeks/months later. Near-online HDF files were used by a provided API [[BeamtimeDaqAccess>>url:https://confluence.desy.de/display/FLASHUSER/Near-Online+data+analysis#Near-Onlinedataanalysis-BriefUserGuidetoBeamtimeDAQAccess||shape="rect"]], which also searches for DAQ channels in files. With assembled files "by run", all DAQ channels were existing in the same HDF file. While shorter runs usually fitted into one file, longer runs still had to be aggregated over several files. The creation of the assembled type of files still involves the use of fairly unstable DAQ Mex-functions As the environment required for using the Mex-functions is already deprecated, its continued existence is uncertain.
48
49 The HDF hierarchy is almost identical in all formats. While in the the recent format each DAQ channel contains the data sets "value" and "index", the deprecated format had one data set for each DAQ channel. The deprecated formats supplies no time axis parameters for spectra data types.
sndueste 45.1 50
51 \\
52
sndueste 46.1 53 **HDF5 example files (old format)**
sndueste 45.1 54
55 Here we have a few HDF5 samples (User data combined with Photon diagnostics data) from a few beamtimes showing the different kind options.
56
57 [[image:attach:image2019-10-21_17-2-50.png||thumbnail="true" width="300"]] [[download HDF5 (Images @ FL2)>>url:https://desycloud.desy.de/index.php/s/nyEgeCWJFC4gao2||shape="rect"]]
58
59 \\
60
61 [[~[~[image:attach:image2019-10-22_10-52-27.png~|~|thumbnail="true" width="300"~]~]download HDF5 (GHz ADC and OPIS @ FL2)>>url:https://desycloud.desy.de/index.php/s/AeA2kPNNnZgX95A||shape="rect"]]
62
63 \\
64
65 \\
sndueste 40.1 66 {{/expand}}
67
sndueste 45.1 68 === HDF examples: ===
cpassow 44.1 69 {{/layout-cell}}
70 {{/layout-section}}
sndueste 40.1 71
cpassow 44.1 72 {{layout-section ac:type="three_equal"}}
73 {{layout-cell}}
74 * ADC data as example for **fast** **data** (10 Hz):           
sndueste 40.1 75
cpassow 44.1 76 \\
77
78 [[image:attach:image2020-11-16_15-26-28.png||height="250"]]
79 {{/layout-cell}}
80
81 {{layout-cell}}
82 * The //average// FEL pulse energy as example for the **slow** **data** (different e.g. 1 Hz):
83
sndueste 41.1 84 ( every 10th train ID is listed in the HDF group "index")
sndueste 40.1 85
cpassow 44.1 86 \\
87
88 [[image:attach:image2020-11-16_15-31-45.png||height="250"]]
89 {{/layout-cell}}
90
91 {{layout-cell}}
sndueste 41.1 92 * (((
cpassow 44.1 93 //zraw// group contains the **original DAQ (DOOCS) names**
sndueste 41.1 94 )))
sndueste 40.1 95
sndueste 41.1 96 of the properties saved in the DESY internal raw format. (For experts)
sndueste 40.1 97
98 \\
99
cpassow 44.1 100 [[image:attach:image2020-11-16_16-26-3.png||height="400"]]
101 {{/layout-cell}}
102 {{/layout-section}}
sndueste 41.1 103
cpassow 44.1 104 {{layout-section ac:type="single"}}
105 {{layout-cell}}
cpassow 53.1 106 {{info}}
107 === Reference implementation (Python) ===
sndueste 40.1 108
cpassow 53.1 109 (imperative)  (% class="Object" %)[[https:~~/~~/gitlab.desy.de/christopher.passow/flash-daq-hdf>>url:https://gitlab.desy.de/christopher.passow/flash-daq-hdf||shape="rect"]]
sndueste 40.1 110
cpassow 53.1 111 (% class="Object" %)(object oriented) [[https:~~/~~/gitlab.desy.de/christopher.passow/fdh-builder>>url:https://gitlab.desy.de/christopher.passow/fdh-builder.git||shape="rect"]]
sndueste 40.1 112 {{/info}}
cpassow 44.1 113 {{/layout-cell}}
114 {{/layout-section}}
sndueste 40.1 115
cpassow 44.1 116 {{layout-section ac:type="single"}}
117 {{layout-cell}}
sndueste 45.1 118 == Complete list of recordable parameters ==
sndueste 40.1 119
sndueste 45.1 120 The complete list for the relation between DOOCS names and HDF5 names for the recordable parameters can be found in [[DESY's Repository~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://stash.desy.de/projects/CS/repos/pah/browse/src/camp/data/channel2HdfName.dat||shape="rect"]].
sendels 1.1 121 \\
122
erkben 30.1 123 == Most popular FLASH parameters and their names in HDF5, DOOCS and (raw) DAQ ==
sendels 1.1 124
erkben 30.1 125 {{id name="DOOCSparameters"/}}
126
sndueste 5.1 127 Note, the HDF group and data set names apply to our HDF tree version since vers. 0.3.0.
sendels 1.1 128
129 \\
130
131 === FLASH1 ===
132
133 ==== Beamline info (FLASH1) ====
134
135 {{code language="none"}}/FL1/Beamlines/Attenuator/pressure{{/code}}
136 //always saved (PBD)//
137 DOOCS prop : {{code language="none"}}FLASH.FEL/GAS_DOSING/FL1.ATTENUATOR/PRESSURE{{/code}}
138 DAQ channel: {{code language="none"}}FLASH.FEL/GAS_DOSING/FL1.ATTENUATOR/PRESSURE{{/code}}
139 desc: set pressure in the gas attenuator
140 units: mbar
141 \\
142
143 {{code language="none"}}/FL1/Beamlines/BL/Fast shutter/open{{/code}}
144 //always saved (PBD)//
145 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/BL.SHUTTER/CH00.TD{{/code}}
146 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/BL.SHUTTER{{/code}}
147 desc: BL Beamline Fast shutter state
148 units: none
149 \\
150
151 {{code language="none"}}/FL1/Beamlines/PG/Fast shutter/open{{/code}}
152 //always saved (PBD)//
153 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/PG.SHUTTER/CH00.TD{{/code}}
154 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/PG.SHUTTER{{/code}}
155 desc: PG Beamline Fast shutter state
156 units: none
157 \\
158
159 {{code language="none"}}/FL1/Beamlines/BL/Filters/BL filter wheel/position filter 1{{/code}}
160 //always saved (PBD)//
161 DOOCS prop : {{code language="none"}}TTF2.FEL/BLFILTERS1/FILTER1/FW.MOTOR.POS{{/code}}
162 DAQ channel: {{code language="none"}}TTF2.FEL/BLFILTERS1/FILTER1/FW.MOTOR.POS{{/code}}
sndueste 24.1 163 desc: Position of the BL filter wheel 1 - to correlate with the filter material please look [[here>>doc:FLASHUSER.jddd-linked help pages.Filter-Units.Filter wheels in FLASH1 and FLASH2.WebHome]]
sendels 1.1 164 units: degree
165 \\
166
167 {{code language="none"}}/FL1/Beamlines/BL/Filters/BL filter wheel/position filter 2{{/code}}
168 //always saved (PBD)//
169 DOOCS prop : {{code language="none"}}TTF2.FEL/BLFILTERS2/FILTER2/FW.MOTOR.POS{{/code}}
170 DAQ channel: {{code language="none"}}TTF2.FEL/BLFILTERS2/FILTER2/FW.MOTOR.POS{{/code}}
sndueste 24.1 171 desc: Position of the BL filter wheel 2 - to correlate with the filter material please look [[here>>doc:FLASHUSER.jddd-linked help pages.Filter-Units.Filter wheels in FLASH1 and FLASH2.WebHome]]
sendels 1.1 172 units: degree
173 \\
174
175 {{code language="none"}}/FL1/Beamlines/PG/Filters/position filter 1{{/code}}
176 //always saved (PBD)//
177 DOOCS prop : = TTF2.FEL/BDAF1/BDA.F1/FW.MOTOR.POS=
178 DAQ channel: {{code language="none"}}TTF2.FEL/BDAF1/BDA.F1/FW.MOTOR.POS{{/code}}
sndueste 5.1 179 desc: Position of the PG filter wheel 1
sendels 1.1 180 units: degree
181 \\
182
183 {{code language="none"}}/FL1/Beamlines/PG/Filters/position filter 2{{/code}}
184 //always saved (PBD)//
185 DOOCS prop : {{code language="none"}}TTF2.FEL/BDAF2/BDA.F2/FW.MOTOR.POS{{/code}}
186 DAQ channel: {{code language="none"}}TTF2.FEL/BDAF2/BDA.F2/FW.MOTOR.POS{{/code}}
sndueste 5.1 187 desc: Position of the PG filter wheel 2
sendels 1.1 188 units: degree
189 \\
190
191 {{code language="none"}}/FL1/Beamlines/PG/Filters/position filter 3{{/code}}
192 //always saved (PBD)//
193 DOOCS prop : {{code language="none"}}TTF2.FEL/PGFILTERS/PGFILTERS/FW.MOTOR.POS{{/code}}
194 DAQ channel: {{code language="none"}}TTF2.FEL/PGFILTERS/PGFILTERS/FW.MOTOR.POS{{/code}}
sndueste 5.1 195 desc: Position of the PG filter wheel 3
sendels 1.1 196 units: degree
sndueste 8.1 197
sendels 1.1 198 \\
199
sndueste 8.1 200
sndueste 34.1 201 NOTE: Aperture positions in the beamline as well as the positions of the beam steering mirrors are also saved. For more Info contact your local contact
sndueste 8.1 202
sendels 4.1 203 [[Contents>>doc:||anchor="Contents"]]
sendels 1.1 204
sndueste 8.1 205 \\
206
sndueste 39.1 207 ==== Photon Diagnostics SASE ([[GMD>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/gmd_intensity_and_position/index_eng.html||shape="rect"]]) ====
sendels 1.1 208
sndueste 55.1 209 {{expand title="Discontinued GMD format (used until 2021)"}}
sndueste 39.1 210 (% style="color: rgb(0,0,0);" %)**Discontinued GMD data recording / evaluation  (VME + PhotonFlux ML server)**
211
sendels 1.1 212 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
sndueste 40.1 213 //always saved (PBD)//
sndueste 34.1 214
215 (% style="color: rgb(0,0,0);" %)DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT04/VAL{{/code}} (%%)
216 (% style="color: rgb(0,0,0);" %)DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENPULSEIC{{/code}}(%%)
217 desc : calibrated average SASE Energy/pulse measured in the TUNNEL upstream the gas attenuator (ion current)
sendels 1.1 218 units : microJ
219
220 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
sndueste 34.1 221 //always saved (PBD)//
222
sendels 1.1 223 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT34/VAL{{/code}}
224 DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENERGYPULSE.USER{{/code}}
225 desc :Energy per pulse Tunnel (from e-) - the values are set to "0" if there was no SASE beam in the FEL
sndueste 23.1 226 units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision) **[[see here for help>>doc:FLASHUSER.jddd-linked help pages.Calibrating the pulse resolved (electron) data from GMD.WebHome]]**
sendels 1.1 227
228 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel (raw){{/code}}
229 //always saved (PBD)//
230 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT14/VAL{{/code}}
231 DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENERGYPULSE.FF{{/code}}
232 desc :Energy per pulse Tunnel (from e-) - uncorrected values. There are also values saved if there was no beam ... just background noise
sndueste 23.1 233 units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision) **[[see here for help>>doc:FLASHUSER.jddd-linked help pages.Calibrating the pulse resolved (electron) data from GMD.WebHome]]**
sendels 1.1 234
235 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy BDA{{/code}}
sndueste 34.1 236 //always saved (PBD)//
237
sendels 1.1 238 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT05/VAL{{/code}}
239 DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENPULSEIC{{/code}}
240 desc : calibrated average SASE Energy/pulse measured in the BDA (in the experimental hall) after the attenuator (ion current)
241 units : microJ
242
243 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA{{/code}}
sndueste 34.1 244 //always saved (PBD)//
245
sendels 1.1 246 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT35/VAL{{/code}}
247 DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENERGYPULSE.USER{{/code}}
248 desc :Energy per pulse BDA (from e-) - the values are set to "0" if there was no SASE beam in the FEL
sndueste 23.1 249 units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision) **[[see here for help>>doc:FLASHUSER.jddd-linked help pages.Calibrating the pulse resolved (electron) data from GMD.WebHome]]**
sendels 1.1 250
251 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA (raw){{/code}}
252 //always saved (PBD)//
253 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT15/VAL{{/code}}
254 DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENERGYPULSE.FF{{/code}}
255 desc :Energy per pulse BDA (from e-) - uncorrected values. There are also values saved if there was no beam ... just background noise
sndueste 23.1 256 units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision)** [[see here for help>>doc:FLASHUSER.jddd-linked help pages.Calibrating the pulse resolved (electron) data from GMD.WebHome]]**
sndueste 54.1 257 {{/expand}}
sendels 1.1 258
sndueste 34.1 259 \\
260
sndueste 55.1 261 (% style="letter-spacing: 0px; color: rgb(0, 0, 0)" %)**NEW (since 2021) GMD data recording / evaluation  (same format as FLASH2 and XFEL)**
sndueste 54.1 262
sndueste 39.1 263 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
264 //always saved (PBD)//
265 (% style="color: rgb(0,0,0);" %)DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL1.TUNNEL/PHOTONFLUX.UJ{{/code}} (%%)
266 (% style="color: rgb(0,0,0);" %)DAQ channel: {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL1.TUNNEL/PHOTONFLUX.UJ{{/code}}
267
268 desc : calibrated average SASE Energy/pulse measured in the TUNNEL upstream the gas attenuator
269 units : microJ
270
271 \\
272
273 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
274 //always saved (PBD)//
275
276 (% style="color: rgb(0,0,0);" %)DOOCS prop : 
277 {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL1.TUNNEL/INTENSITY.TD{{/code}}DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL1.TUNNEL/INTENSITY.TD{{/code}}
278
279 desc : Energy per pulse measured in the Tunnel.  In addition measurement errors and beam position are included for EACH pulse in the pulse train  !! (see below)
280 units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision)** [[see here for help>>doc:FLASHUSER.jddd-linked help pages.Calibrating the pulse resolved (electron) data from GMD.WebHome]]**
281
282 {{info title="GMD pulse resolved data structure"}}
283 For every pulse in the pulse train the information is saved:
284
285
286 1. **Intensity per pulse** (a.u. (more or less µJ ))
287 1. Intensity per pulse (auxillary GMD) - not used
288 1. Position horizontal (mm, for a single pulse the position information may be very noisy  - talk to your local contact)
289 1. Position vertical (mm, for a single pulse the position information may be very noisy  - talk to your local contact)
290 1. **Intensity per pulse sigma** (a.u. (more or less µJ ), (% style="color: rgb(0,0,0);" %)This parameter gives an indication of the error of the measurement of the pulse energy. This takes signal to noise,  detector resolution, uncertainties in crossection etc into account. (it is NOT the measurement of the statistical fluctuation of the SASE pulses)(%%))
291 1. Position horizontal sigma  (mm, indicates the error (RMS, sigma) of the measurement according to known uncertainties and signal to noise)
292 1. Position vertical sigma  (mm, indicates the error (RMS, sigma) of the measurement according to known uncertainties and signal to noise)
293 1. Combined warning and error flags
294
295 The pulse energy and the error are plotted for the first bunch of the pulse trains saved in this 
296 file
297
298
299 [[image:attach:image2021-2-9_10-51-6.png||height="250"]]
300
301 \\
302 {{/info}}
303
304 All values for the GMD are also available for the** BDA GMD **which is located in the experimental hall down stream the gas attenuator. If the attenuator is on the ratio between BDA and Tunnel signal shows the attenuation. **BUT NOTE** that the filter units  are downstream the GMD. So if filters  are used this influence is NOT measured by the GMD BDA !
305
306 \\
307
308 Besides  pulse energy the GMD also provides information about the beam position
309
sendels 1.1 310 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position BDA horizontal{{/code}}
311 //always saved (PBD)//
312 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IX.POS{{/code}}
313 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IX.POS{{/code}}
sndueste 19.1 314 desc :Beam position of the photon Beam determined by the GMD (BDA, x=horizontal)
sendels 1.1 315 units : mm
316
317 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position BDA vertical{{/code}}
318 //always saved (PBD)//
319 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IY.POS{{/code}}
320 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IY.POS{{/code}}
sndueste 19.1 321 desc :Beam position of the photon Beam determined by the GMD (BDA, y=vertical)
sendels 1.1 322 units : mm
323
324 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position tunnel horizontal{{/code}}
325 //always saved (PBD)//
326 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IX.POS{{/code}}
327 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IX.POS{{/code}}
sndueste 19.1 328 desc :Beam position of the photon Beam determined by the GMD (TUNNEL, x=horizontal)
sendels 1.1 329 units : mm
330
331 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position tunnel vertical{{/code}}
332 //always saved (PBD)//
333 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IY.POS{{/code}}
334 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IY.POS{{/code}}
sndueste 19.1 335 desc :Beam position of the photon Beam determined by the GMD (TUNNEL, y=vertical)
sendels 1.1 336 units : mm
337
sndueste 39.1 338 \\
339
340 ==== Spectrometer (FLASH1) ====
341
sendels 1.1 342 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength{{/code}}
343 _always saved (when Spectrum is measured !!) (PBD) _
344 DOOCS prop : {{code language="none"}}TTF2.EXP/PHOTONWL.ML/WAVE_LENGTH/VAL.TD{{/code}}
345 DAQ channel: {{code language="none"}}PBD.PHOTONWL.ML/WAVE_LENGTH{{/code}}
346 desc : XUV Spectrum measured with the "tunnel spectrometer"
347 units :
348
349 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength start value{{/code}}
350 _always saved (when Spectrum is measured !!) (PBD) _
351 DOOCS prop : {{code language="none"}}TTF2.EXP/PBD.PHOTONWL.ML/BSTART/VAL{{/code}}
352 DAQ channel: {{code language="none"}}TTF2.EXP/PBD.PHOTONWL.ML/BSTART/VAL{{/code}}
353 desc : start value (in nm) for the wavelength axis of the XUV Spectrum measured with the "tunnel spectrometer"
354 units : nm
355
356 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength increment{{/code}}
357 _always saved (when Spectrum is measured !!) (PBD) _
358 DOOCS prop : ==
359 DAQ channel: ==
360 desc : increment value (in nm) for each pixel for the wavelength axis of the XUV Spectrum measured with the "tunnel spectrometer"
361 units : nm
362
363 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon energy{{/code}}
364 //saved on DEMAND (PBD spectrometer stream)//
365 DOOCS prop : ==
366 DAQ channel: {{code language="none"}}PBD.PHOTONEN.ML/PHOTON_ENERGY{{/code}}
367 desc : XUV Spectrum in eV measured with the "PG2 spectrometer"
368 units :
369
370 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon energy start value{{/code}}
371 //saved on DEMAND (PBD spectrometer stream)//
372 DOOCS prop : ==
373 DAQ channel: ==
374 desc : start value (in eV) for the wavelength axis of the XUV Spectrum measured with the "PG2 spectrometer"
375 units : eV
376
377 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon energy increment{{/code}}
378 //saved on DEMAND (PBD spectrometer stream)//
379 DOOCS prop : ==
380 DAQ channel: ==
381 desc : increment value (in eV) for each pixel for the wavelength axis of the XUV Spectrum measured with the "PG spectrometer"
382 units : eV
383
384 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon wavelength{{/code}}
385 //saved on DEMAND (PBD spectrometer stream)//
386 DOOCS prop : ==
387 DAQ channel: {{code language="none"}}PHOTONEN.ML/PHOTON_WAVE_LEN{{/code}}
388 desc : XUV Spectrum in nm measured with the "PG2 spectrometer"
389 units :
390
391 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon wavelength increment{{/code}}
392 //saved on DEMAND (PBD spectrometer stream)//
393 DOOCS prop : ==
394 DAQ channel: ==
395 desc : start value (in nm) for the wavelength axis of the XUV Spectrum measured with the "PG2 spectrometer"
396 units : nm
397
398 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon wavelength start value{{/code}}
399 //saved on DEMAND (PBD spectrometer stream)//
400 DOOCS prop : ==
401 DAQ channel: ==
402 desc : increment value (in nm) for each pixel for the wavelength axis of the XUV Spectrum measured with the "PG spectrometer"
403 units : nm
404
sendels 4.1 405 [[Contents>>doc:||anchor="Contents"]]
sendels 1.1 406
407 ==== Electron Beam properties (FLASH1) ====
408
409 ===== bunch charge =====
410
411 {{code language="none"}}/FL1/Electron Diagnostic/Bunch charge/after undulator{{/code}}
412 //always saved (PBD)//
413 DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/12EXP/CHARGE.FLASH1{{/code}}
414 DAQ channel: {{code language="none"}}FLASH.DIAG/TOROID/12EXP{{/code}}
415 desc: electron bunch charge (FLASH1)
416 units: nC
417
sndueste 5.1 418 =====
419 arrival time =====
sendels 1.1 420
421 {{code language="none"}}/FL1/Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
422 //always saved (PBD)//
423 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/4DBC3/LOW_CHARGE_ARRIVAL_TIME{{/code}}
424 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/4DBC3.LOW_CHARGE_ARRIVAL_TIME{{/code}}
sndueste 33.1 425 desc: Electron bunch arrival time measured with the BAM inside the accelerator - however shows a very good correlation to the arrivaltime  of the XUV pulses in the experiment (pulse resolved data).
426 units: ps (bigger numbers indicate later arrivaltime of the electrons)
sendels 1.1 427
sndueste 33.1 428 {{code language="none"}}/FL1/Electron Diagnostic/BAM/1SFELC/electron bunch arrival time (low charge){{/code}}
429 //always saved (PBD)//
430 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/1SFELC/LOW_CHARGE_ARRIVAL_TIME{{/code}}
431 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/1SFELC.LOW_CHARGE_ARRIVAL_TIME{{/code}}
432 desc: Electron bunch arrival time measured with the BAM  before the undulator (pulse resolved data). This one was newly installed in 2020.
433 units: ps (bigger numbers indicate later arrivaltime of the electrons)
434
435 {{info title="BAM hints"}}
436 * besides the arrivaltime from FLASH1 there is also the FLASH2/3 electron arrival time saved.In case of doubt ask your local contact
437 * [[Link a collection of papers related to the BAM and the analysis of pump-probe experiments >>doc:FLASHUSER.Additional helpful things.FLASH beamlines and instruments references.WebHome]]
sndueste 56.1 438 * [[LINK to detailed infos from MSK>>url:https://confluence.desy.de/display/SDiagPublic/BAM+Data+Structure||shape="rect"]]
sndueste 33.1 439 * a recent  [[talk about the working principle of the BAM>>attach:BAM-basics and outlook-2018_DESY-template_16-9Format.pdf]]
440 {{/info}}
441
442 \\
443
sendels 1.1 444 ===== electron beam profile =====
445
446 {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/TDS profile{{/code}}
447 //always saved (PBD) - IF LOLA is ON and ACTIVATED in the PBD DAQ (talk to expert)//
448 DOOCS prop : {{code language="none"}}TTF2.DAQ/BEAM.PROF.ML/BEAM.PROF/OUT.PROF.CCCED{{/code}}
449 DAQ channel: {{code language="none"}}PBD.BEAM.PROF.ML/DAQ.OUT.PROF.CCCED{{/code}}
450 desc: temporal profile of electron bunch, y axis in Ampers (FLASH1)
451 units: pixel
452 \\
453
454 {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/Expert stuff/TDS calibration constant{{/code}}
455 //always saved (PBD) - IF LOLA is ON and ACTIVATED in the PBD DAQ (talk to expert)//
456 DOOCS prop : {{code language="none"}}TTF2.DAQ/BEAM.PROF.ML/BEAM.PROF/CALIB.CONST.T{{/code}}
457 DAQ channel: = PBD.BEAM.PROF.ML/CCT=
458 desc: TDS calibration constant for the x-axis of the profiles: fs per pixel
459 units: fs per pixel
460 \\
461
462 {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/TDS profile width rms{{/code}}
463 //always saved (PBD) - IF LOLA is ON and ACTIVATED in the PBD DAQ (talk to expert)//
464 DOOCS prop : {{code language="none"}}TTF2.DAQ/BEAM.PROF.ML/BEAM.PROF/SOWS.W.CCTED{{/code}}
465 DAQ channel: {{code language="none"}}PBD.BEAM.PROF.ML/PROFWIDTHCCTED{{/code}}
466 desc: rms pulse width of the measures TDS electron bunch profile
467 units: fs
468
469 ===== electron bunch energy =====
470
471 {{code language="none"}}/FL1/Electron Diagnostic/Electron energy/average electron energy{{/code}}
sndueste 40.1 472 //always saved (PBD)//
sendels 1.1 473 DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_INTRA_MEAN/VAL{{/code}}
474 DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_MEAN{{/code}}
475 desc: electron bunch energy (average over the bunch train)
sendels 2.1 476 units: (% class="twikiNewLink" %)MeV(%%)
sendels 1.1 477 \\
478
479 {{code language="none"}}/FL1/Electron Diagnostic/Electron energy/pulse resolved energy{{/code}}
sndueste 40.1 480 //always saved (PBD)//
sendels 1.1 481 DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_SPECT/VAL.TD{{/code}}
482 DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_SPECT{{/code}}
483 desc: electron bunch energy bunch resolved
sndueste 5.1 484 units: (% class="twikiNewLink" %)MeV
sendels 1.1 485
486 \\
487
488 {{code language="none"}}/FL1/Electron Diagnostic/Electron energy/wavelength bunch train average{{/code}}
sndueste 40.1 489 //always saved (PBD)//
sendels 1.1 490 DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/LAMBDA_MEAN/VAL{{/code}}
491 DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/LAMBDA_MEAN{{/code}}
492 desc: Wavelength calculated by the electron bunch energy (average over the bunch train) (FLASH1)
493 units: nm
494 \\
495
sendels 4.1 496 [[Contents>>doc:||anchor="Contents"]]
sendels 1.1 497
498 \\
499
sndueste 5.1 500 ==== Timing information, rep rate etc.  (FLASH1) ====
sendels 1.1 501
502 ===== bunch repetition rate =====
503
504 {{code language="none"}}/FL1/Timing/repetition rate{{/code}}
505 //always saved (PBD)//
506 DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.1{{/code}}
507 DAQ channel: {{code language="none"}}TTF2.UTIL/LASER.CONTROL/GUN/PULSE_FREQ{{/code}}
508 desc: repetition rate of the bunches / pulses within the burst (FLASH1)
509 units: kHz
510 \\
511
512 ===== set number of pulses =====
513
514 {{code language="none"}}/FL1/Timing/set number of bunches{{/code}}
515 //always saved (PBD)//
516 DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH1{{/code}}
517 DAQ channel: {{code language="none"}}TTF2.UTIL/LASER.CONTROL/GUN/PULSE_NUM{{/code}}
518 desc: Number of pulses set at the gun (FLASH1)
519 units:
520
521 ===== actual number of pulses =====
522
523 {{code language="none"}}/FL1/Timing/actual number of bunches{{/code}}
524 //always saved (PBD)//
525 DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/12EXP/NUMBEROFBUNCHES.FLASH1{{/code}}
526 DAQ channel: {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP{{/code}}
527 desc: Number of bunches measured BEHIND the undulator. If pulses are used for diagnostic of the protection system of the accelerator limits the number of bunches to be accelerated this is the actual number that created XUV radiation.The number is calculated by the DAQ middle layer server, (FLASH1)
528 units:
529 \\
530
531 ===== actual pulse pattern recorded after the undulator =====
532
533 {{code language="none"}}/FL1/Timing/Bunch pattern/pattern after undulator{{/code}}
534 //always saved (PBD)//
535 DOOCS prop : {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP/CHARGE.TD{{/code}}
536 DAQ channel: {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP{{/code}}
sndueste 52.1 537 desc: The bunch pattern as function of time in a burst recorded by toroid diagnostic BEHIND the undulator. (FLASH1)
sendels 1.1 538 units:
539 \\
540
541 ===== Train ID =====
542
543 {{code language="none"}}/Timing/train ID{{/code}}
544 //always saved (PBD)//
545 DOOCS prop : {{code language="none"}}none{{/code}}
546 DAQ channel: {{code language="none"}}none{{/code}}
sndueste 18.1 547 desc: Each 10 Hz burst has its unique train ID. For the HDF5 data set the ID is the same for all parameters with the same index (note camera images may be shifted by 1 ID - talk to the experts !)
sendels 1.1 548 units:
549 \\
550
551 ===== Train time =====
552
553 {{code language="none"}}/Timing/train time{{/code}}
sndueste 18.1 554 desc:Local time as array of day, hour, minute, second, and centisecond. This data set is meant for visualization purposes only. For correlations use the train ID or the Unix time of the time stamp
sendels 1.1 555 units: d h min s cs
556 \\
557
558 {{code language="none"}}/Timing/time stamp{{/code}}
559 desc:first column: Local time in unix time. To get day, hour, minute, second you can use unix: e.g. date ~-~-date='@1553617729' or matlab, python etc
560 second column: microseconds
561 third column: Train ID of FLASH
562 \\
563
sendels 4.1 564 [[Contents>>doc:||anchor="Contents"]]
sendels 1.1 565
566 \\
567
568 ==== Pump Probe Laser (FLASH1) ====
569
sndueste 5.1 570 {{code language="none"}}/FL1/Experiment/Pump probe laser/laser attenuation{{/code}}
571
572 //always saved (PBD)//
sendels 1.1 573 DOOCS prop : {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/ROT2.CURRENT{{/code}}
574 DAQ channel: {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/ROT2.CURRENT{{/code}}
575 desc: attenuation of the PPLaser (rotation of a waveplate)
576 units : 0 no transmission , 1: full transmission
577
sndueste 5.1 578 \\
579
sendels 1.1 580 {{code language="none"}}/FL1/Experiment/Pump probe laser/laser delay{{/code}}
581 //always saved (PBD)//
582 DOOCS prop : {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/DLY1.CURRENT{{/code}}
583 DAQ channel: {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/DLY1.CURRENT{{/code}}
584 desc: delay of the Pump probe laser - measured by the read back position of the motor. only read out every secound ... better use the encoder
585 units : ps ( pos delay means IR comes later)
586
sndueste 5.1 587 \\
588
sendels 1.1 589 {{code language="none"}}/FL1/Experiment/Pump probe laser/delay line IK220.0/ENC.DELAY{{/code}}
590 //always saved (PBD)//
591 DOOCS prop : {{code language="none"}}TTF2.FEL/DELLINE.ENC/IK220.0/ENC.DELAY{{/code}}
592 DAQ channel: {{code language="none"}}TTF2.FEL/DELLINE.ENC/IK220.0:ENC.DELAY{{/code}}
593 subsystem: {{code language="none"}}DELLINE.ENC{{/code}} desc : delay of the Pump probe laser - measured by an encoder. The position is read out with 10Hz train synchronized and should be used to determine the actual laser delay (the motor position is only read out about every second
594 units : ps ( pos delay means IR comes later)
595
sndueste 5.1 596 \\
597
sendels 1.1 598 {{code language="none"}}/FL1/Experiment/Pump probe laser/Synchronization/timing jitter RMS GECCO{{/code}}
599 //always saved (PBD)//
600 DOOCS prop : {{code language="none"}}FLASH.SYNC/F1PPL.LASER_LOCK/28C.F1PPL1.CONTROLLER/ADV_CTRL_MANAGER.0.PID_INPUT_JITTER.2.RD{{/code}}
601 DAQ channel: {{code language="none"}}FLASH.SYNC/F1PPL.LASER_LOCK/28C.F1PPL1.CONTROLLER/ADV_CTRL_MANAGER.0.PID_INPUT_JITTER.2.RD{{/code}}
sendels 2.1 602 desc: rms jitter of the GECCO (% class="twikiNewLink" %)TiSa(%%) Oscillator units: fs
sendels 1.1 603
604 \\
605
606 {{code language="none"}}/FL1/Experiment/Pump probe laser/streak camera delay time{{/code}}
607 //always saved (PBD)//
608 DOOCS prop : {{code language="none"}}TTF2.FEL/TDOLFEL/TDOLFEL/STREAK.CAM.TIME{{/code}}
609 DOOCS prop : {{code language="none"}}TTF2.FEL/TDOLFEL/TDOLFEL/STREAK.CAM.TIME{{/code}}
sndueste 52.1 610 desc: delay time between the optical laser and the FEL units: ps
sendels 1.1 611
612 \\
613
sendels 4.1 614 [[Contents>>doc:||anchor="Contents"]]
sendels 1.1 615
616 \\
617
618 ==== User Data (FLASH1) ====
619
sndueste 52.1 620 The data saved specifically for detectors at an experiment will show up in /Experiment/ there is a large number of options for cameras or monitoring of slow properties (motor positions etc) for user experiments. For details please ask your local contact.
sndueste 18.1 621
622 NOTE: If parameters for an experiment are included on short notice the correct naming in the HDF5 may not be in time and the data will show up in /uncategorized/ with the DOOCS names
623
624 The most common and permanently installed device used by experiment are our ADCs:
625
sendels 1.1 626 ===== GHz ADCs =====
627
sndueste 18.1 628 ADC traces of the (SPDevices 412) GHZ ADCs available for the users . More information about the ADCs can be found** [[here>>doc:FLASHUSER.Data Acquisition and controls.Controls (DOOCS, jDDD,\.\.\.).MTCA ADCs.WebHome]]**
sendels 1.1 629 //saved on DEMAND in the user DAQ//
630 \\The HDF5 names for the ADC traces are depending on the beamline :
631 \\PG Beamline:
632 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH00/TD{{/code}}
633 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH01/TD{{/code}}
634 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH02/TD{{/code}}
635 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH03/TD{{/code}}
636
637 BL Beamlines:
638 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH00/TD{{/code}}
639 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH01/TD{{/code}}
640 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH02/TD{{/code}}
641 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH03/TD{{/code}}
642 \\{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH00/TD{{/code}}
643 {{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH01/TD{{/code}}
644 \\{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH02/TD{{/code}}
645 {{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH03/TD{{/code}}
646
647 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
sndueste 52.1 648 here the {{code language="none"}}CH00.TD{{/code}} is the full ADC trace as it is sampled ( typically several 100.000 samples per pulse train) while the {{code language="none"}}CH00.DAQ.TD{{/code}} trace only has the number of samples which are sent to the DAQ OR if //grouping// is activated the {{code language="none"}}CH00.DAQ.TD{{/code}} contains only the grouped spectra. To read the ADC trace with an online analysis program the {{code language="none"}}CH00.DAQ.TD{{/code}} is used preferably.
sendels 1.1 649 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00{{/code}}
650
sndueste 18.1 651 In addition there are also additional parameters saved like:
sendels 1.1 652
sndueste 16.1 653 * {{code language="none"}}sample frequency{{/code}}: it shows the sample frequency in MHz (number of samples per µs). NOTE: the clock of the ADC is NOT synchronized to the FLASH timing system. Thus the number of samples between bunches in the bunch train may be not integer numbers which will be show up for long bunch trains.
sndueste 52.1 654 * {{code language="none"}}number of samples{{/code}}: total number of samples recorded for each 10 Hz trigger
sndueste 16.1 655 * {{code language="none"}}error (ADC):{{/code}} 0 indicates that there was no error
sendels 1.1 656
657 ===== MHz ADCs =====
658
sndueste 5.1 659 similar to the GHz ADCs the MHz ADCs are saved with HDF5 names like:
sendels 1.1 660 {{code language="none"}}/FL1/Experiment/BL1/SIS8300 100MHz ADC/CH2/TD{{/code}}
661 DOOCS prop : FLASH.FEL/ADC.SIS.BL1/EXP1.CH02/CH00.TD
662 DAQ channel: : FLASH.FEL/ADC.SIS.BL1/EXP1.CH02
663
sndueste 18.1 664 In addition there are also additional parameters saved like:
sendels 1.1 665
sndueste 18.1 666 * {{code language="none"}}sample frequency{{/code}}: it shows the sample frequency in MHz (number of samples per µs). NOTE: the clock of the ADC is NOT synchronized to the FLASH timing system. Thus the number of samples between bunches in the bunch train may be not integer numbers which will be show up for long bunch trains.
sndueste 52.1 667 * {{code language="none"}}number of samples{{/code}}: total number of samples recorded for each 10 Hz trigger
sndueste 18.1 668
sendels 4.1 669 [[Contents>>doc:||anchor="Contents"]]
sendels 1.1 670
sndueste 18.1 671 \\
672
673 \\
674
675 \\
676
sendels 1.1 677 === FLASH2 ===
678
sndueste 7.1 679 There is analog to FLASH1 a permanently running "PhotonDagnostic DAQ FLASH2" (PBD2) and 2 User DAQs
sendels 1.1 680
sndueste 7.1 681 ==== Beamline info (FLASH2) ====
sndueste 6.1 682
sndueste 40.1 683 {{code language="none"}}/FL2/Beamlines/Attenuator/pressure  {{/code}}
684 (% style="color: rgb(0,0,0);" %)//always saved (PBD2)// (%%)
685 (% style="color: rgb(0,0,0);" %)DOOCS prop : {{code language="none"}}FLASH.FEL/ATT.GAS_DOSING/FL2.HALL/PRESSURE{{/code}} (%%)
686 (% style="color: rgb(0,0,0);" %)DAQ channel:  {{code language="none"}}FLASH.FEL/ATT.GAS_DOSING/FL2.HALL/PRESSURE{{/code}} (%%)
687 (% style="color: rgb(0,0,0);" %)desc: set pressure in the gas attenuator (%%)
688 (% style="color: rgb(0,0,0);" %)units: mbar(%%)
sndueste 5.1 689 \\
690
sndueste 7.1 691 {{code language="none"}}/FL2/Beamlines/FL20/Shutter/open{{/code}}
692 //always saved (PBD2)//
693 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.SIS.FL2FS/FL20.SHUTTER/CH00.TD{{/code}}
694 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.SIS.FL2FS/FL20.SHUTTER{{/code}}
695 desc: BL Beamline Fast shutter state: 1 is open, 0 is closed ( for technical reasons there are 100 vales of this state saved ...)
sndueste 6.1 696 units: none
sndueste 5.1 697
698
sndueste 7.1 699 {{code language="none"}}/FL2/Beamlines/Filter wheel/position wheel 1{{/code}}
sndueste 8.1 700 //always saved (PBD2)//
sndueste 7.1 701 DOOCS prop : {{code language="none"}}FLASH.FEL/FL20H.PH.MOTOR/MOTOR1.MOT3/FPOS{{/code}}
702 DAQ channel: FLASH.FEL/FL20H.PH.MOTOR/MOTOR1.MOT3/FPOS
sndueste 24.1 703 desc: Position of the BL filter wheel 1 - to correlate with the filter material please look **[[here>>doc:FLASHUSER.jddd-linked help pages.Filter-Units.Filter wheels in FLASH1 and FLASH2.WebHome]]**
sndueste 6.1 704 units: degree
705 \\
706
sndueste 40.1 707 /FL2/Beamlines/Filter wheel/position wheel 2
708 always saved (PBD2)
709 DOOCS prop : {{code language="none"}}FLASH.FEL/FL20H.PH.MOTOR/MOTOR2.MOT3/FPOS{{/code}}
710 DAQ channel: {{code language="none"}}FLASH.FEL/FL20H.PH.MOTOR/MOTOR2.MOT3/FPOS{{/code}}
711 desc: Position of the BL filter wheel 2 - to correlate with the filter material please look [[here>>doc:FLASHUSER.jddd-linked help pages.Filter-Units.Filter wheels in FLASH1 and FLASH2.WebHome]]
712 units: degree
sndueste 6.1 713
sndueste 8.1 714 \\
715
716 NOTE: Aperture positions in the beamline as well as the positions of the beam steering mirrors are also saved. for more Info contact your local contact
717
sndueste 6.1 718 [[Contents>>doc:||anchor="Contents"]]
719
720 \\
721
722 \\
723
sndueste 10.1 724 ==== Photon Diagnostics SASE ([[XGMD>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/gmd_intensity_and_position/index_eng.html||shape="rect"]] - FLASH2) ====
sndueste 8.1 725
726 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
727 //always saved (PBD2)//
sndueste 9.1 728 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
729 DAQ channel:{{code language="none"}} FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
730 desc : calibrated average ( ~~ 20 sec averaging time ) SASE Energy/pulse measured in the TUNNEL before the attenuator (ion current)
sndueste 8.1 731 units : microJ
732
733 \\
734
735 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
sndueste 9.1 736 //always saved (PBD2)//
737 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
738 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
sndueste 38.1 739 desc : Energy per pulse measured in the Tunnel  (in front of the gas attenuator and the apertures in the Hall) In addition measurement errors and beam position are included for EACH pulse in the pulse train  !! (see below)
sndueste 23.1 740 units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision)** [[see here for help>>doc:FLASHUSER.jddd-linked help pages.Calibrating the pulse resolved (electron) data from GMD.WebHome]]**
sndueste 8.1 741
sndueste 39.1 742 {{info title="GMD pulse resolved data structure"}}
sndueste 38.1 743 For every pulse in the pulse train the information is saved:
744
sndueste 8.1 745
sndueste 38.1 746 1. **Intensity per pulse** (a.u. (more or less µJ ))
747 1. Intensity per pulse (auxillary GMD) - not used
sndueste 39.1 748 1. Position horizontal (mm, for a single pulse the position information may be very noisy  - talk to your local contact)
749 1. Position vertical (mm, for a single pulse the position information may be very noisy  - talk to your local contact)
sndueste 38.1 750 1. **Intensity per pulse sigma** (a.u. (more or less µJ ), (% style="color: rgb(0,0,0);" %)This parameter gives an indication of the error of the measurement of the pulse energy. This takes signal to noise,  detector resolution, uncertainties in crossection etc into account. (it is NOT the measurement of the statistical fluctuation of the SASE pulses)(%%))
751 1. Position horizontal sigma  (mm, indicates the error (RMS, sigma) of the measurement according to known uncertainties and signal to noise)
752 1. Position vertical sigma  (mm, indicates the error (RMS, sigma) of the measurement according to known uncertainties and signal to noise)
753 1. Combined warning and error flags
sndueste 8.1 754
sndueste 38.1 755 The pulse energy and the error are plotted for the first bunch of the pulse trains saved in this 
756 file
sndueste 8.1 757
sndueste 38.1 758
759 [[image:attach:image2021-2-9_10-51-6.png||height="250"]]
sndueste 8.1 760
sndueste 39.1 761 \\
762 {{/info}}
sndueste 38.1 763
sndueste 39.1 764 \\
sndueste 8.1 765
sndueste 9.1 766 All values for the GMD are also available for the** HALL GMD **which is located in the experimental hall down stream the gas attenuator. If the attenuator is on the ratio between Hall and Tunnel signal shows the attenuation. **BUT NOTE** that the filter unit and the Aperture 4 are downstream the GMD. So if filters and aperture are used this influence is NOT measured by the GMD hall !
sndueste 8.1 767
sndueste 9.1 768 \\
sndueste 8.1 769
sndueste 9.1 770 Besides  pulse energy the GMD also provides information about the beam position
sndueste 8.1 771
sndueste 9.1 772 \\
773
774 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel horizontal{{/code}}
775 //always saved (PBD2)//
776 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
777 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
sndueste 19.1 778 desc : the Average ( ~~ 20 sec averaging time ) Beam position of the photon Beam determined by the GMD (tunnel, x=horizontal)
sndueste 8.1 779 units : mm
780
sndueste 9.1 781 \\
782
783 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel vertical{{/code}}
784 //always saved (PBD2)//
785 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
786 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
sndueste 19.1 787 desc : the Average ( ~~ 20 sec averaging time ) Beam position of the photon Beam determined by the GMD (tunnel, x=horizontal)
sndueste 8.1 788 units : mm
789
790 \\
791
sndueste 40.1 792 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position tunnel x
793 always saved (PBD2)
794 DOOCS prop : FLASH.FEL/XGM.BPM/FL2.HALL/X.TD
795 DAQ channel: FLASH.FEL/XGM.BPM/FL2.HALL:2
796 desc: Besides the well calibrated averaged beam position information there is also the option to measure the beam position on a single bunch level. HOWEVER this methide needs a perfectly adjusted signal level (talk to your local contact !!) and also then the signal to noise is rather small and one needs some averaging ... BUT with this option one can determine if there was a spatial slope on a burst (say forst bunches were lower than the last ones or so ...)
797 units : mm   
sndueste 8.1 798
sndueste 40.1 799 (x=horizontal, y = vertial)
sndueste 9.1 800
801 again the same parameter set is available for the **HALL GMD**
802
sndueste 8.1 803 \\
804
sndueste 9.1 805 \\
806
sndueste 15.1 807 ==== Photon Diagnostics OPIS[[ >>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]](FLASH2) ====
sndueste 10.1 808
sndueste 19.1 809 for more info see:** [[ OPIS>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]]**
sndueste 10.1 810
811 (The OPIS hall is not installed yet ...)
812
sndueste 9.1 813 \\
814
sndueste 10.1 815 {{code language="none"}}/FL2/Photon Diagnostic/Wavelength/OPIS tunnel/Processed/mean photon energy{{/code}}
816 // saved opon request (PBD2)//
817 DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL042{{/code}}
818 DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL042{{/code}}
819 desc : mean photon energy ( ~~ 1 sec averaging time ) measured in the TUNNEL for a specific bunch out of the bunch train (via photoelectron spectroscopy)
820 units : eV
821
sndueste 9.1 822 \\
823
sndueste 10.1 824 {{code language="none"}}/FL2/Photon Diagnostic/Wavelength/OPIS tunnel/Processed/mean wavelength{{/code}}
825 // saved opon request (PBD2)//
826 DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL040{{/code}}
827 DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL040{{/code}}
sndueste 52.1 828 desc : mean wavelength ( ~~ 1 sec averaging time ) measured in the TUNNEL for a specific bunch out of the bunch train (via photoelectron spectroscopy)
sndueste 10.1 829 units : nm
830
sndueste 9.1 831 \\
832
sndueste 10.1 833 {{code language="none"}}/FL2/Photon Diagnostic/Wavelength/OPIS tunnel/Processed/number of analyzed bunch        (in older version this can be found in OPIS tunnel/Expert stuff/General operation parameters/){{/code}}
834 // saved opon request (PBD2)//
835 DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL060{{/code}}
836 DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL060{{/code}}
sndueste 11.1 837 desc : The bunch number of the bunch used for the wavelength calculation
838 units :
sndueste 10.1 839
sndueste 9.1 840 \\
841
sndueste 52.1 842 If Opis is running typically on the the averaged data is saved. For several experiments it may make sense to save the information for each single bunch. This is up to now done by saving the complete ADC trace of the TOF setup. This is a huge amount of data and needs processing. This has to be performed after the beamtime in close contact to [[Markus Braune>>mailto:markus.braune@desy.de||shape="rect"]] ( responsible for [[OPIS>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]])
sndueste 11.1 843
sndueste 9.1 844 \\
845
sndueste 52.1 846 In case OPIS was not operating there is still information about the **set wavelength** for the undulators (see below) which may differ by up to 5 % from the actual wavelength due to different settings in the FEL ...
sndueste 12.1 847
sndueste 9.1 848 \\
849
850 \\
851
sndueste 12.1 852 ==== Electron Beam properties (FLASH2) ====
853
854 ===== bunch charge =====
855
856 {{code language="none"}}/FL2/Electron Diagnostic/Bunch charge/after undulator{{/code}}
sndueste 14.1 857 //always saved (PBD2)//
sndueste 12.1 858 DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
859 DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
sndueste 15.1 860 desc: electron bunch charge FLASH2 (average value for each bunchtrain).
sndueste 12.1 861 units: nC
862
sndueste 9.1 863 \\
864
sndueste 52.1 865 ===== electron bunch energy =====
sndueste 9.1 866
sndueste 52.1 867 {{code language="none"}}/FL2/Electron Diagnostic/Electron energy/energy of first bunch/behind undulators{{/code}}
868 //always saved (PBD2)//
869 DOOCS prop : {{code language="none"}}FLASH.DIAG/BEAM_ENERGY_MEASUREMENT/FL2XTDS/ENERGY.FLASH2{{/code}}
870 DAQ channel: (% style="color: rgb(94,108,132);" %)TTF2.DAQ/PBD2.BEAM.ENERGY.MEAS.ML.COPY/FL2XTDS.ENERGY.FLASH2{{code language="none"}}{{/code}}(%%)
871 desc: electron bunch energy measured behind the undulator. Data is saved with 10 Hz - BUT (for computation reasons) only the energy of the FIRST bunch is recorded. The data is also available for (% style="color: rgb(94,108,132);" %)extraction and septum  in the beginning of FLASH2
872
873 (% style="letter-spacing: 0.0px;" %)units: (% class="twikiNewLink" %)MeV
874
875 \\
876
877 (% style="color: rgb(94,108,132);font-weight: 600;letter-spacing: 0.0px;" %)
878 undulator settings
879
sndueste 14.1 880 {{code language="none"}}/FL2/Electron Diagnostic/Undulator setting/set wavelength{{/code}}
881 //always saved (PBD2)//
882 DOOCS prop : {{code language="none"}}TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH{{/code}}
883 DAQ channel:  {{code language="none"}}TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH{{/code}}
884 desc: Set value for the anticipated wavelength . This parameter is used to set the undulator gap. It may however deviate from the actual wavelength by several % ...
885 units: nm
sndueste 12.1 886
sndueste 14.1 887 {{code language="none"}}/FL2/Electron Diagnostic/Undulator setting/SASE14 gap{{/code}}
888 //always saved (PBD2)//
889 DOOCS prop : {{code language="none"}}FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP{{/code}}
890 DAQ channel:  {{code language="none"}}FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP{{/code}}
sndueste 15.1 891 desc: gap value of the undulators. This can be used to follow up how many undulators were closed and if there was a taper
sndueste 14.1 892 units: mm
893
sndueste 15.1 894 The gap values are saved for all 12 undulators (Nr 3 to 14). Undulator 14 is the one closest to the experimental hall.
sndueste 14.1 895
sndueste 12.1 896 =====
897 arrival time =====
898
sndueste 33.1 899 {{code language="none"}}/FL2/Electron Diagnostic/BAM/8FL2XTDS/electron bunch arrival time (low charge){{/code}}
900 //always saved (PBD2)//
901 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/8FL2XTDS/LOW_CHARGE_ARRIVAL_TIME{{/code}}
902 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/8FL2XTDS.LOW_CHARGE_ARRIVAL_TIME{{/code}}
903 desc: Electron bunch arrival time measured with the BAM after the FLASH2 undulator (pulse resolved data)
904 units: ps (bigger numbers indicate later arrivaltime of the electrons)
905
sndueste 14.1 906 **FL1**{{code language="none"}}//Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
907 //always saved (PBD2)//
sndueste 12.1 908 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/4DBC3/LOW_CHARGE_ARRIVAL_TIME{{/code}}
909 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/4DBC3.LOW_CHARGE_ARRIVAL_TIME{{/code}}
sndueste 33.1 910 desc: Electron bunch arrival time measured with the BAM  in the accelerator  (pulse resolved data)
sndueste 14.1 911 units: ps (bigger numbers indicate later arrivaltime of the electrons)
sndueste 12.1 912
sndueste 33.1 913 \\
sndueste 14.1 914
sndueste 33.1 915 {{info title="BAM hints"}}
916 * The BAM 4DBC3 measures the arrivaltime of** FLASH 1 and FLASH2** in the same data set (thus also sorted in at /FL1/ !).
917 * The BAM 8FL2XTDS measures only for FLASH2 BUT has the same data structure as the other BAMS ... thus there are also (random) values in in the  FLASH1 time slot 
918 ** Structure: The first values are for FLASH1 bunches. After a gap of about 70 micros ( 70 colums)  with  as entry for the switching between FLASH 1 and 2 the values for the electrons used in FLASH2 start.  The start time of FLASH2 is also recorded in the DAQ. FLASH1 start time is for historic reasons 700. thus if e.g. the start time of FLASH2 ( property name see below) is 1200 it means that FLASH starts at column 500 (1200-700) ... .In case of doubt ask your local contact
919 * [[Link a collection of papers related to the BAM and the analysis of pump-probe experiments >>doc:FLASHUSER.Additional helpful things.FLASH beamlines and instruments references.WebHome]]
920 * [[LINK to detailed infos from MSK (may only work inside DESY network~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:http://www.desy.de/~~mbock/pages/BAM_daq_channel_descriptions.html||shape="rect"]]
921 * a recent  [[talk about the working principle of the BAM>>attach:BAM-basics and outlook-2018_DESY-template_16-9Format.pdf]]
922 {{/info}}
sndueste 10.1 923
sndueste 14.1 924
sndueste 15.1 925 [[Contents>>doc:||anchor="Contents"]]
sndueste 12.1 926
927 \\
928
sndueste 16.1 929 ==== Timing information, rep rate etc.  (FLASH2) ====
sndueste 12.1 930
sndueste 15.1 931 ===== start time of FLASH2 =====
sndueste 12.1 932
sndueste 15.1 933 {{code language="none"}}/FL2/Timing/start time flash2{{/code}}
934 //always saved (PBD2)//
935 DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/BUNCH_POSITION.2{{/code}}
936 DAQ channel: {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/BUNCH_POSITION.2{{/code}}
sndueste 17.1 937 desc: The max 600 µs acceleration time of FLASH is devided between FLASH1 and FLASH2. This 600 µs window starts with FLASH1 (up to now)  at a time"label" of 700 µs (for historic reasons). Thus the first bunch of FLASH 1 comes at "700" and the last possibel bunch comes at 1300 (700+600). After FLASH1 train is over ther is a about 70µs switching time with no bunches. Then comes the first FLASH2 bunch.  Thus if e.g. the start time of FLASH2 is 1200 it means that FLASH2 starts at column 500 (1200-700)  in the HDF5 files. (However for yet unknown reasons this may change by 2-3 colums ...)
sndueste 15.1 938 units: µs
sndueste 12.1 939
940 ===== bunch repetition rate =====
941
sndueste 15.1 942 {{code language="none"}}/FL2/Timing/repetition rate{{/code}}
943 //always saved (PBD2)//
944 DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.2{{/code}}
945 DAQ channel: {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.2{{/code}}
946 desc: repetition rate of the bunches / pulses within the burst (FLASH2)
sndueste 12.1 947 units: kHz
948
949 ===== actual number of pulses =====
950
951 {{code language="none"}}/FL1/Timing/actual number of bunches{{/code}}
sndueste 15.1 952 //always saved (PBD2)//
953 DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH2{{/code}}
954 DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH2{{/code}}
955 desc: Number of bunches measured BEHIND the undulator. If pulses are used for diagnostic of the protection system of the accelerator limits the number of bunches to be accelerated this is the actual number that created XUV radiation.The number is calculated by the DAQ middle layer server, (FLASH2)
sndueste 12.1 956 units:
957 \\
958
959 ===== actual pulse pattern recorded after the undulator =====
960
961 {{code language="none"}}/FL1/Timing/Bunch pattern/pattern after undulator{{/code}}
sndueste 15.1 962 //always saved (PBD2)//
963 DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN.PULSEPATTERN{{/code}}
964 DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN.PULSEPATTERN{{/code}}
965 desc: The bunch pattern as function of time in a burst recorded by toroide diagnostic BEHIND the undulator. (FLASH2)
sndueste 12.1 966 units:
967 \\
968
969 ===== Train ID =====
970
971 {{code language="none"}}/Timing/train ID{{/code}}
sndueste 15.1 972 //always saved (PBD2)//
sndueste 12.1 973 DOOCS prop : {{code language="none"}}none{{/code}}
974 DAQ channel: {{code language="none"}}none{{/code}}
975 desc: Each 10 Hz burst has its unique train ID. For the HDF5 dataset the ID is the same for all parameters with the same index (note camera images may be shifted by 1 ID - talk to the experts !)
976 units:
977 \\
978
979 ===== Train time =====
980
sndueste 16.1 981 //always saved (PBD2)
982 //{{code language="none"}}/Timing/train time{{/code}}
sndueste 12.1 983 desc:Local time as array of day, hour, minute, second, and centisecond. This dataset is meant for visualisation purposes only. For correlations use the train ID or the Unix time of the time stamp
984 units: d h min s cs
985 \\
986
sndueste 16.1 987 {{code language="none"}}/Timing/time stamp{{/code}}
988
989 //always saved (PBD2)//
990 desc: first column: Local time in unix time. To get day, hour, minute, second you can use unix: e.g. date ~-~-date='@1553617729' or matlab, python etc
sndueste 12.1 991 second column: microseconds
992 third column: Train ID of FLASH
993 \\
994
995 [[Contents>>doc:||anchor="Contents"]]
996
997 \\
998
sndueste 19.1 999 ==== User Data (FLASH2) ====
sndueste 18.1 1000
sndueste 19.1 1001 The data saved specifically for detectors at an experiment will show up in /Experiment/ there is a large number of options for cameras or monitoring pslow properties (motor positons etc) for user experiments. For details please ask your local contact.
1002
1003 NOTE: If parameters for an experiment are included on short notice the correct naming in the HDF5 may not be in time and the data will show up in /uncategorized/ with the DOOCS names
1004
1005 The most common and permanently installed device used by experiment are our ADCs:
1006
sndueste 18.1 1007 ===== GHz ADCs =====
1008
sndueste 19.1 1009 ADC traces of the (SPDevices 412) GHZ ADCs available for the users . More information about the ADCs can be found** [[here>>doc:FLASHUSER.Data Acquisition and controls.Controls (DOOCS, jDDD,\.\.\.).MTCA ADCs.WebHome]]**
sndueste 18.1 1010 //saved on DEMAND in the user DAQ//
sndueste 19.1 1011 \\Up to now there are 4 channels available at FL24
1012 \\\\{{code language="none"}}/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH00/TD{{/code}}
1013 {{code language="none"}}/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH01/TD{{/code}}
1014 \\{{code language="none"}}/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH02/TD{{/code}}{{code language="none"}}/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH03/TD{{/code}}
sndueste 18.1 1015
sndueste 19.1 1016 \\
sndueste 18.1 1017
sndueste 19.1 1018 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.FL2EXP1/FL2EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
sndueste 18.1 1019 here the {{code language="none"}}CH00.TD{{/code}} is the full ADC trace as it is sampled ( typically several 100.000 samples per pulse train) while the {{code language="none"}}CH00.DAQ.TD{{/code}} trace only has the number of samples which are sent to the DAQ OR if //grouping// is activated the {{code language="none"}}CH00.DAQ.TD{{/code}} conatins only the grouped spectra. To read the ADC trace with an online analysis program the {{code language="none"}}CH00.DAQ.TD{{/code}} is used preferablly.
sndueste 19.1 1020 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.FL2EXP1/FL2EXP1.CH00{{/code}}
sndueste 18.1 1021
1022 In addition there are also additional parameters saved like:
1023
1024 * {{code language="none"}}sample frequency{{/code}}: it shows the sample frequency in MHz (number of samples per µs). NOTE: the clock of the ADC is NOT synchronized to the FLASH timing system. Thus the number of samples between bunches in the bunch train may be not integer numbers which will be show up for long bunch trains.
1025 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
1026 * {{code language="none"}}error (ADC):{{/code}} 0 indicates that there was no error
1027 * {{code language="none"}}/CH0-CH3/offset{{/code}}: To use the full dynamic range of the ADC one can shift the base line . This offset is saved here.
1028
1029 ===== MHz ADCs =====
1030
1031 similar to the GHz ADCs the MHz ADCs are saved with HDF5 names like:
sndueste 19.1 1032 {{code language="none"}}/FL2/Experiment/MTCA-EXP1/SIS8300 100MHz ADC/CH2/TD{{/code}}
1033 DOOCS prop : FLASH.FEL/ADC.SIS.FL2EXP1/FL2EXP1.CH02/CH00.TD
1034 DAQ channel: : FLASH.FEL/ADC.SIS.FL2EXP1/FL2EXP1.CH02
sndueste 18.1 1035
1036 In addition there are also additional parameters saved like:
1037
1038 * {{code language="none"}}sample frequency{{/code}}: it shows the sample frequency in MHz (number of samples per µs). NOTE: the clock of the ADC is NOT synchronized to the FLASH timing system. Thus the number of samples between bunches in the bunch train may be not integer numbers which will be show up for long bunch trains.
1039 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
1040
1041 [[Contents>>doc:||anchor="Contents"]]
1042
sndueste 12.1 1043 \\
1044
1045 \\
1046
sndueste 21.1 1047 ==== Pump Probe Laser (FLASH2) ====
1048
1049 There may be more information available from the "Laser DAQ". laese contact your Laser Local Contact.
1050
1051
sndueste 22.1 1052 {{code language="none"}}/FL2/Experiment/Pump probe laser/FL24/attenuator position{{/code}}//always saved (PBD2)//
sndueste 21.1 1053 DOOCS prop : {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR1.FL24/FPOS{{/code}}
1054 DAQ channel: {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR1.FL24/FPOS{{/code}}
1055 desc: attenuation of the PPLaser in the FL24 hutch (rotation of a waveplate)
1056 units : deg.
1057
sndueste 12.1 1058 \\
1059
sndueste 21.1 1060
sndueste 22.1 1061 {{code language="none"}}/FL2/Experiment/Pump probe laser/FL24/polarization position{{/code}}//always saved (PBD2)//
1062 DOOCS prop : {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR2.FL24/FPOS{{/code}}
1063 DAQ channel: {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR2.FL24/FPOS{{/code}}
sndueste 21.1 1064 desc: attenuation of the PPLaser in the FL24 hutch (rotation of a waveplate)
1065 units : deg.
1066
sndueste 12.1 1067 \\
1068
sndueste 21.1 1069 {{code language="none"}}/FL1/Experiment/Pump probe laser/laser delay readback{{/code}}
1070 //always saved (PBD2)//
1071 DOOCS prop : {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/FMC0.MD22.0.POSITION.RD{{/code}}
1072 DAQ channel: {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/FMC0.MD22.0.POSITION.RD{{/code}}
1073 desc: delay of the Pump probe laser - measured by the read back position of the motor. There is also the set value available ( upto now these values are only updating every 1-2 seconds. There is no fast encoder property as on FLASH1 available)
1074 units : ps )
1075
sndueste 12.1 1076 \\
1077
sndueste 22.1 1078 {{code language="none"}}/FL1/Experiment/Pump probe laser/Synchronization/timing jitter RMS{{/code}}
sndueste 21.1 1079 //always saved (PBD)//
sndueste 22.1 1080 DOOCS prop : {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/CURRENT_INPUT_JITTER.RD{{/code}}
1081 DAQ channel: {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/CURRENT_INPUT_JITTER.RD{{/code}}
1082 desc: rms jitter of the fs-Oscillator
1083 units: fs
sndueste 21.1 1084
1085 [[Contents>>doc:||anchor="Contents"]]
1086
1087 \\
1088
sndueste 23.1 1089 === "/uncategorized/" ===
1090
1091 If parameters for an experiment are included on short notice the correct naming in the HDF5 may not be in time and the data will show up in /uncategorized/ with their DOOCS names
1092
1093 \\
1094
sendels 1.1 1095 === HDF5 structure revisions ===
1096
1097 Starting with Beamblock 4, August 2018, the hierarchy of the HDF group names have been adapted to reflect the new situation at FLASH. FLASH2 is operating for users quite some time now. Therefore, both accelerators appear equally in their respective HDF groups, namely "/FL1" and "/FL2". The root group of proper, by run organised HDF files have an attribute called "version". This version attribute has changed from "0.2.x" to "0.3.x". The changes in detail:
1098
1099 \\
1100
1101 * All FLASH1 related HDF groups moved to group "/FL1", i.e. a new prefix "/FL1" is added to their HDF path.
1102 * The ambigious term "pulse" has been replaced by "train" to refer to "pulse train". Most notably, the dataset "/Timing/pulse ID" has changed to "/Timing/train ID".
1103 * A number of inconsistent names have been streamlined. The relevant changes are listed in the following table.
1104
1105 \\
1106
sndueste 45.1 1107 (% class="wrapped" %)
sendels 1.1 1108 |=(((
sendels 4.1 1109 earlier HDF path (vers. 0.2)
sendels 1.1 1110 )))|=(((
sendels 4.1 1111 is now (vers. 0.3)
sendels 1.1 1112 )))
1113 |(((
1114 /Photon Diagnostic/GMD/Beam position/position BDA x
1115 )))|(((
1116 /FL1/Photon Diagnostic/GMD/Beam position/position BDA horizontal
1117 )))
1118 |(((
1119 /Photon Diagnostic/GMD/Beam position/position BDA y
1120 )))|(((
1121 /FL1/Photon Diagnostic/GMD/Beam position/position BDA vertical
1122 )))
1123 |(((
1124 /Photon Diagnostic/GMD/Beam position/position tunnel x
1125 )))|(((
1126 /FL1/Photon Diagnostic/GMD/Beam position/position tunnel horizontal
1127 )))
1128 |(((
1129 /Photon Diagnostic/GMD/Beam position/position tunnel y
1130 )))|(((
1131 /FL1/Photon Diagnostic/GMD/Beam position/position tunnel vertical
1132 )))
1133 |(((
1134 /Experiment/Pump probe laser/BPM/position x
1135 )))|(((
1136 /FL1/Experiment/Pump probe laser/BPM/position horizontal
1137 )))
1138 |(((
1139 /Experiment/Pump probe laser/BPM/position y
1140 )))|(((
1141 /FL1/Experiment/Pump probe laser/BPM/position vertical
1142 )))
1143 |(((
1144 /FL2/Photon Diagnostic/GMD/Beam position/Average/position hall horizontal
1145 )))|(((
1146 /FL2/Photon Diagnostic/GMD/Average beam position/position hall horizontal
1147 )))
1148 |(((
1149 /FL2/Photon Diagnostic/GMD/Beam position/Average/position hall vertical
1150 )))|(((
1151 /FL2/Photon Diagnostic/GMD/Average beam position/position hall vertical
1152 )))
1153 |(((
1154 /FL2/Photon Diagnostic/GMD/Beam position/Average/position tunnel horizontal
1155 )))|(((
1156 /FL2/Photon Diagnostic/GMD/Average beam position/position tunnel horizontal
1157 )))
1158 |(((
1159 /FL2/Photon Diagnostic/GMD/Beam position/Average/position tunnel vertical
1160 )))|(((
1161 /FL2/Photon Diagnostic/GMD/Average beam position/position tunnel vertical
1162 )))
1163 |(((
1164 /FL2/Photon Diagnostic/GMD/Average energy/hall
1165 )))|(((
1166 /FL2/Photon Diagnostic/GMD/Average energy/energy hall
1167 )))
1168 |(((
1169 /FL2/Photon Diagnostic/GMD/Average energy/hall (raw)
1170 )))|(((
1171 /FL2/Photon Diagnostic/GMD/Average energy/energy hall (raw)
1172 )))
1173 |(((
1174 /FL2/Photon Diagnostic/GMD/Average energy/tunnel
1175 )))|(((
1176 /FL2/Photon Diagnostic/GMD/Average energy/energy tunnel
1177 )))
1178 |(((
1179 /FL2/Photon Diagnostic/GMD/Average energy/tunnel (raw)
1180 )))|(((
1181 /FL2/Photon Diagnostic/GMD/Average energy/energy tunnel (raw)
1182 )))
1183 |(((
1184 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/hall x
1185 )))|(((
1186 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position hall horizontal
1187 )))
1188 |(((
1189 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/hall y
1190 )))|(((
1191 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position hall vertical
1192 )))
1193 |(((
1194 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/tunnel x
1195 )))|(((
1196 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position tunnel horizontal
1197 )))
1198 |(((
1199 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/tunnel y
1200 )))|(((
1201 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position tunnel vertical
1202 )))
1203
1204 \\
1205
sendels 4.1 1206 [[Contents>>doc:||anchor="Contents"]]
sendels 1.1 1207
1208 \\
cpassow 44.1 1209 {{/layout-cell}}
1210 {{/layout-section}}
1211 {{/layout}}