Wiki source code of The FLASH HDF5 structure

Version 37.1 by cpassow on 2020/11/23 16:26
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1 == Contents ==
2
3
4
5 {{toc/}}
6
7 \\
8
9 == General information about HDF5 ==
10
11 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"]]
12
13 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"]]
14
15 For use on the DESY Maxwell or PAL (max-fsc or pal) **hdfview** is available in the xray module :
16 {{code language="none"}}> module load xray{{/code}}
17 {{code language="none"}}> hdfview{{/code}}
18
19 [[Contents>>doc:||anchor="Contents"]]
20
21 == The current FLASH HDF5 structure ==
22
23 The photon diagnostic, electron diagnostic and beamline information as well as the information about the pump-probe laser and the infrastructure offered for users (GHz/MHz ADCs) can be included in one HDF5 file which is organized according to train IDs. The general structure is:
24
25 * Electron Diagnostic
26 * Photon Diagnostics
27 * Beamlines
28 * Experiment
29 * Timing
30 [[image:attach:HDF5_structure.jpg||height="400"]]
31
32 A detailed description of (most) channels can be found in the lower part of the hdf5 viewer:
33 [[image:attach:HDF5_structure_desc.jpg||thumbnail="true" height="250"]]
34
35 [[Contents>>doc:||anchor="Contents"]]
36
37 \\
38
39 === HDF5 example files ===
40
41 Here we have a few HDF5 samples (User data combined with Photon diagnostics data) from a few beamtimes showing the different kind options.
42
43 [[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"]]
44
45 \\
46
47 [[~[~[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"]]
48
49 \\
50
51 \\
52
53 [[Contents>>doc:||anchor="Contents"]]
54
55 \\
56
57 == The new (starting 2021) HDF5 format ==
58
59 Here is [[some documentation on the changes of the HDF5 format>>doc:FLASHUSER.HDF5 format]] that well be available in 2021 (work in progress)
60
61 \\
62
63 \\
64
65 == Most popular FLASH parameters and their names in HDF5, DOOCS and (raw) DAQ ==
66
67 {{id name="DOOCSparameters"/}}
68
69 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"]].
70 The most common and often used ones are summarized below:
71
72 Note, the HDF group and data set names apply to our HDF tree version since vers. 0.3.0.
73
74 \\
75
76 === FLASH1 ===
77
78 \\
79
80 ==== Beamline info (FLASH1) ====
81
82 {{code language="none"}}/FL1/Beamlines/Attenuator/pressure{{/code}}
83 //always saved (PBD)//
84 DOOCS prop : {{code language="none"}}FLASH.FEL/GAS_DOSING/FL1.ATTENUATOR/PRESSURE{{/code}}
85 DAQ channel: {{code language="none"}}FLASH.FEL/GAS_DOSING/FL1.ATTENUATOR/PRESSURE{{/code}}
86 desc: set pressure in the gas attenuator
87 units: mbar
88 \\
89
90 {{code language="none"}}/FL1/Beamlines/BL/Fast shutter/open{{/code}}
91 //always saved (PBD)//
92 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/BL.SHUTTER/CH00.TD{{/code}}
93 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/BL.SHUTTER{{/code}}
94 desc: BL Beamline Fast shutter state
95 units: none
96 \\
97
98 {{code language="none"}}/FL1/Beamlines/PG/Fast shutter/open{{/code}}
99 //always saved (PBD)//
100 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/PG.SHUTTER/CH00.TD{{/code}}
101 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/PG.SHUTTER{{/code}}
102 desc: PG Beamline Fast shutter state
103 units: none
104 \\
105
106 {{code language="none"}}/FL1/Beamlines/BL/Filters/BL filter wheel/position filter 1{{/code}}
107 //always saved (PBD)//
108 DOOCS prop : {{code language="none"}}TTF2.FEL/BLFILTERS1/FILTER1/FW.MOTOR.POS{{/code}}
109 DAQ channel: {{code language="none"}}TTF2.FEL/BLFILTERS1/FILTER1/FW.MOTOR.POS{{/code}}
110 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]]
111 units: degree
112 \\
113
114 {{code language="none"}}/FL1/Beamlines/BL/Filters/BL filter wheel/position filter 2{{/code}}
115 //always saved (PBD)//
116 DOOCS prop : {{code language="none"}}TTF2.FEL/BLFILTERS2/FILTER2/FW.MOTOR.POS{{/code}}
117 DAQ channel: {{code language="none"}}TTF2.FEL/BLFILTERS2/FILTER2/FW.MOTOR.POS{{/code}}
118 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]]
119 units: degree
120 \\
121
122 {{code language="none"}}/FL1/Beamlines/PG/Filters/position filter 1{{/code}}
123 //always saved (PBD)//
124 DOOCS prop : = TTF2.FEL/BDAF1/BDA.F1/FW.MOTOR.POS=
125 DAQ channel: {{code language="none"}}TTF2.FEL/BDAF1/BDA.F1/FW.MOTOR.POS{{/code}}
126 desc: Position of the PG filter wheel 1
127 units: degree
128 \\
129
130 {{code language="none"}}/FL1/Beamlines/PG/Filters/position filter 2{{/code}}
131 //always saved (PBD)//
132 DOOCS prop : {{code language="none"}}TTF2.FEL/BDAF2/BDA.F2/FW.MOTOR.POS{{/code}}
133 DAQ channel: {{code language="none"}}TTF2.FEL/BDAF2/BDA.F2/FW.MOTOR.POS{{/code}}
134 desc: Position of the PG filter wheel 2
135 units: degree
136 \\
137
138 {{code language="none"}}/FL1/Beamlines/PG/Filters/position filter 3{{/code}}
139 //always saved (PBD)//
140 DOOCS prop : {{code language="none"}}TTF2.FEL/PGFILTERS/PGFILTERS/FW.MOTOR.POS{{/code}}
141 DAQ channel: {{code language="none"}}TTF2.FEL/PGFILTERS/PGFILTERS/FW.MOTOR.POS{{/code}}
142 desc: Position of the PG filter wheel 3
143 units: degree
144
145 \\
146
147
148 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
149
150 [[Contents>>doc:||anchor="Contents"]]
151
152 \\
153
154 ==== Photon Diagnostics SASE ([[GMD>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/gmd_intensity_and_position/index_eng.html||shape="rect"]]) / Spectrometer (FLASH1) ====
155
156 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
157 //always saved (PBD)//
158 (% style="color: rgb(165,173,186);" %)New MTCA Version: DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL1.TUNNEL/PHOTONFLUX.UJ{{/code}} (%%)
159 (% style="color: rgb(165,173,186);" %)New MTCA Version: DAQ channel: {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL1.TUNNEL/PHOTONFLUX.UJ{{/code}}
160
161 (% style="color: rgb(0,0,0);" %)DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT04/VAL{{/code}} (%%)
162 (% style="color: rgb(0,0,0);" %)DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENPULSEIC{{/code}}(%%)
163 desc : calibrated average SASE Energy/pulse measured in the TUNNEL upstream the gas attenuator (ion current)
164 units : microJ
165
166 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
167 //always saved (PBD)//
168
169 (% style="color: rgb(193,199,208);" %)New MTCA Version: DOOCS prop : 
170 {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL1.TUNNEL/INTENSITY.TD{{/code}}New MTCA Version: DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL1.TUNNEL/INTENSITY.TD{{/code}}
171
172 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT34/VAL{{/code}}
173 DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENERGYPULSE.USER{{/code}}
174 desc :Energy per pulse Tunnel (from e-) - the values are set to "0" if there was no SASE beam in the FEL
175 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]]**
176
177 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel (raw){{/code}}
178 //always saved (PBD)//
179 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT14/VAL{{/code}}
180 DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENERGYPULSE.FF{{/code}}
181 desc :Energy per pulse Tunnel (from e-) - uncorrected values. There are also values saved if there was no beam ... just background noise
182 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]]**
183
184 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy BDA{{/code}}
185 //always saved (PBD)//
186
187 (% style="color: rgb(165,173,186);" %)New MTCA Version: DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL1.BDA/PHOTONFLUX.UJ{{/code}} (%%)
188 (% style="color: rgb(165,173,186);" %)New MTCA Version: DAQ channel: {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL1.BDA/PHOTONFLUX.UJ{{/code}}
189
190 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT05/VAL{{/code}}
191 DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENPULSEIC{{/code}}
192 desc : calibrated average SASE Energy/pulse measured in the BDA (in the experimental hall) after the attenuator (ion current)
193 units : microJ
194
195 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA{{/code}}
196 //always saved (PBD)//
197
198 (% style="color: rgb(193,199,208);" %)New MTCA Version: DOOCS prop : 
199 {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL1.BDA/INTENSITY.TD{{/code}}New MTCA Version: DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL1.BDA/INTENSITY.TD{{/code}}(%%)
200 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT35/VAL{{/code}}
201 DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENERGYPULSE.USER{{/code}}
202 desc :Energy per pulse BDA (from e-) - the values are set to "0" if there was no SASE beam in the FEL
203 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]]**
204
205 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA (raw){{/code}}
206 //always saved (PBD)//
207 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT15/VAL{{/code}}
208 DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENERGYPULSE.FF{{/code}}
209 desc :Energy per pulse BDA (from e-) - uncorrected values. There are also values saved if there was no beam ... just background noise
210 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]]**
211
212 \\
213
214 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position BDA horizontal{{/code}}
215 //always saved (PBD)//
216 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IX.POS{{/code}}
217 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IX.POS{{/code}}
218 desc :Beam position of the photon Beam determined by the GMD (BDA, x=horizontal)
219 units : mm
220
221 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position BDA vertical{{/code}}
222 //always saved (PBD)//
223 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IY.POS{{/code}}
224 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IY.POS{{/code}}
225 desc :Beam position of the photon Beam determined by the GMD (BDA, y=vertical)
226 units : mm
227
228 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position tunnel horizontal{{/code}}
229 //always saved (PBD)//
230 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IX.POS{{/code}}
231 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IX.POS{{/code}}
232 desc :Beam position of the photon Beam determined by the GMD (TUNNEL, x=horizontal)
233 units : mm
234
235 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position tunnel vertical{{/code}}
236 //always saved (PBD)//
237 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IY.POS{{/code}}
238 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IY.POS{{/code}}
239 desc :Beam position of the photon Beam determined by the GMD (TUNNEL, y=vertical)
240 units : mm
241
242 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength{{/code}}
243 _always saved (when Spectrum is measured !!) (PBD) _
244 DOOCS prop : {{code language="none"}}TTF2.EXP/PHOTONWL.ML/WAVE_LENGTH/VAL.TD{{/code}}
245 DAQ channel: {{code language="none"}}PBD.PHOTONWL.ML/WAVE_LENGTH{{/code}}
246 desc : XUV Spectrum measured with the "tunnel spectrometer"
247 units :
248
249 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength start value{{/code}}
250 _always saved (when Spectrum is measured !!) (PBD) _
251 DOOCS prop : {{code language="none"}}TTF2.EXP/PBD.PHOTONWL.ML/BSTART/VAL{{/code}}
252 DAQ channel: {{code language="none"}}TTF2.EXP/PBD.PHOTONWL.ML/BSTART/VAL{{/code}}
253 desc : start value (in nm) for the wavelength axis of the XUV Spectrum measured with the "tunnel spectrometer"
254 units : nm
255
256 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength increment{{/code}}
257 _always saved (when Spectrum is measured !!) (PBD) _
258 DOOCS prop : ==
259 DAQ channel: ==
260 desc : increment value (in nm) for each pixel for the wavelength axis of the XUV Spectrum measured with the "tunnel spectrometer"
261 units : nm
262
263 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon energy{{/code}}
264 //saved on DEMAND (PBD spectrometer stream)//
265 DOOCS prop : ==
266 DAQ channel: {{code language="none"}}PBD.PHOTONEN.ML/PHOTON_ENERGY{{/code}}
267 desc : XUV Spectrum in eV measured with the "PG2 spectrometer"
268 units :
269
270 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon energy start value{{/code}}
271 //saved on DEMAND (PBD spectrometer stream)//
272 DOOCS prop : ==
273 DAQ channel: ==
274 desc : start value (in eV) for the wavelength axis of the XUV Spectrum measured with the "PG2 spectrometer"
275 units : eV
276
277 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon energy increment{{/code}}
278 //saved on DEMAND (PBD spectrometer stream)//
279 DOOCS prop : ==
280 DAQ channel: ==
281 desc : increment value (in eV) for each pixel for the wavelength axis of the XUV Spectrum measured with the "PG spectrometer"
282 units : eV
283
284 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon wavelength{{/code}}
285 //saved on DEMAND (PBD spectrometer stream)//
286 DOOCS prop : ==
287 DAQ channel: {{code language="none"}}PHOTONEN.ML/PHOTON_WAVE_LEN{{/code}}
288 desc : XUV Spectrum in nm measured with the "PG2 spectrometer"
289 units :
290
291 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon wavelength increment{{/code}}
292 //saved on DEMAND (PBD spectrometer stream)//
293 DOOCS prop : ==
294 DAQ channel: ==
295 desc : start value (in nm) for the wavelength axis of the XUV Spectrum measured with the "PG2 spectrometer"
296 units : nm
297
298 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon wavelength start value{{/code}}
299 //saved on DEMAND (PBD spectrometer stream)//
300 DOOCS prop : ==
301 DAQ channel: ==
302 desc : increment value (in nm) for each pixel for the wavelength axis of the XUV Spectrum measured with the "PG spectrometer"
303 units : nm
304
305 [[Contents>>doc:||anchor="Contents"]]
306
307 ==== Electron Beam properties (FLASH1) ====
308
309 ===== bunch charge =====
310
311 {{code language="none"}}/FL1/Electron Diagnostic/Bunch charge/after undulator{{/code}}
312 //always saved (PBD)//
313 DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/12EXP/CHARGE.FLASH1{{/code}}
314 DAQ channel: {{code language="none"}}FLASH.DIAG/TOROID/12EXP{{/code}}
315 desc: electron bunch charge (FLASH1)
316 units: nC
317
318 =====
319 arrival time =====
320
321 {{code language="none"}}/FL1/Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
322 //always saved (PBD)//
323 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/4DBC3/LOW_CHARGE_ARRIVAL_TIME{{/code}}
324 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/4DBC3.LOW_CHARGE_ARRIVAL_TIME{{/code}}
325 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).
326 units: ps (bigger numbers indicate later arrivaltime of the electrons)
327
328 {{code language="none"}}/FL1/Electron Diagnostic/BAM/1SFELC/electron bunch arrival time (low charge){{/code}}
329 //always saved (PBD)//
330 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/1SFELC/LOW_CHARGE_ARRIVAL_TIME{{/code}}
331 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/1SFELC.LOW_CHARGE_ARRIVAL_TIME{{/code}}
332 desc: Electron bunch arrival time measured with the BAM  before the undulator (pulse resolved data). This one was newly installed in 2020.
333 units: ps (bigger numbers indicate later arrivaltime of the electrons)
334
335 {{info title="BAM hints"}}
336 * besides the arrivaltime from FLASH1 there is also the FLASH2/3 electron arrival time saved.In case of doubt ask your local contact
337 * [[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]]
338 * [[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"]]
339 * a recent  [[talk about the working principle of the BAM>>attach:BAM-basics and outlook-2018_DESY-template_16-9Format.pdf]]
340 {{/info}}
341
342 \\
343
344 ===== electron beam profile =====
345
346 {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/TDS profile{{/code}}
347 //always saved (PBD) - IF LOLA is ON and ACTIVATED in the PBD DAQ (talk to expert)//
348 DOOCS prop : {{code language="none"}}TTF2.DAQ/BEAM.PROF.ML/BEAM.PROF/OUT.PROF.CCCED{{/code}}
349 DAQ channel: {{code language="none"}}PBD.BEAM.PROF.ML/DAQ.OUT.PROF.CCCED{{/code}}
350 desc: temporal profile of electron bunch, y axis in Ampers (FLASH1)
351 units: pixel
352 \\
353
354 {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/Expert stuff/TDS calibration constant{{/code}}
355 //always saved (PBD) - IF LOLA is ON and ACTIVATED in the PBD DAQ (talk to expert)//
356 DOOCS prop : {{code language="none"}}TTF2.DAQ/BEAM.PROF.ML/BEAM.PROF/CALIB.CONST.T{{/code}}
357 DAQ channel: = PBD.BEAM.PROF.ML/CCT=
358 desc: TDS calibration constant for the x-axis of the profiles: fs per pixel
359 units: fs per pixel
360 \\
361
362 {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/TDS profile width rms{{/code}}
363 //always saved (PBD) - IF LOLA is ON and ACTIVATED in the PBD DAQ (talk to expert)//
364 DOOCS prop : {{code language="none"}}TTF2.DAQ/BEAM.PROF.ML/BEAM.PROF/SOWS.W.CCTED{{/code}}
365 DAQ channel: {{code language="none"}}PBD.BEAM.PROF.ML/PROFWIDTHCCTED{{/code}}
366 desc: rms pulse width of the measures TDS electron bunch profile
367 units: fs
368
369 ===== electron bunch energy =====
370
371 {{code language="none"}}/FL1/Electron Diagnostic/Electron energy/average electron energy{{/code}}
372 _always saved (PBD)
373 DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_INTRA_MEAN/VAL{{/code}}
374 DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_MEAN{{/code}}
375 desc: electron bunch energy (average over the bunch train)
376 units: (% class="twikiNewLink" %)MeV(%%)
377 \\
378
379 {{code language="none"}}/FL1/Electron Diagnostic/Electron energy/pulse resolved energy{{/code}}
380 _always saved (PBD)
381 DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_SPECT/VAL.TD{{/code}}
382 DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_SPECT{{/code}}
383 desc: electron bunch energy bunch resolved
384 units: (% class="twikiNewLink" %)MeV
385
386 \\
387
388 {{code language="none"}}/FL1/Electron Diagnostic/Electron energy/wavelength bunch train average{{/code}}
389 _always saved (PBD)
390 DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/LAMBDA_MEAN/VAL{{/code}}
391 DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/LAMBDA_MEAN{{/code}}
392 desc: Wavelength calculated by the electron bunch energy (average over the bunch train) (FLASH1)
393 units: nm
394 \\
395
396 [[Contents>>doc:||anchor="Contents"]]
397
398 \\
399
400 ==== Timing information, rep rate etc.  (FLASH1) ====
401
402 ===== bunch repetition rate =====
403
404 {{code language="none"}}/FL1/Timing/repetition rate{{/code}}
405 //always saved (PBD)//
406 DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.1{{/code}}
407 DAQ channel: {{code language="none"}}TTF2.UTIL/LASER.CONTROL/GUN/PULSE_FREQ{{/code}}
408 desc: repetition rate of the bunches / pulses within the burst (FLASH1)
409 units: kHz
410 \\
411
412 ===== set number of pulses =====
413
414 {{code language="none"}}/FL1/Timing/set number of bunches{{/code}}
415 //always saved (PBD)//
416 DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH1{{/code}}
417 DAQ channel: {{code language="none"}}TTF2.UTIL/LASER.CONTROL/GUN/PULSE_NUM{{/code}}
418 desc: Number of pulses set at the gun (FLASH1)
419 units:
420
421 ===== actual number of pulses =====
422
423 {{code language="none"}}/FL1/Timing/actual number of bunches{{/code}}
424 //always saved (PBD)//
425 DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/12EXP/NUMBEROFBUNCHES.FLASH1{{/code}}
426 DAQ channel: {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP{{/code}}
427 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)
428 units:
429 \\
430
431 ===== actual pulse pattern recorded after the undulator =====
432
433 {{code language="none"}}/FL1/Timing/Bunch pattern/pattern after undulator{{/code}}
434 //always saved (PBD)//
435 DOOCS prop : {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP/CHARGE.TD{{/code}}
436 DAQ channel: {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP{{/code}}
437 desc: The bunch pattern as function of time in a burst recorded by toroide diagnostic BEHIND the undulator. (FLASH1)
438 units:
439 \\
440
441 ===== Train ID =====
442
443 {{code language="none"}}/Timing/train ID{{/code}}
444 //always saved (PBD)//
445 DOOCS prop : {{code language="none"}}none{{/code}}
446 DAQ channel: {{code language="none"}}none{{/code}}
447 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 !)
448 units:
449 \\
450
451 ===== Train time =====
452
453 {{code language="none"}}/Timing/train time{{/code}}
454 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
455 units: d h min s cs
456 \\
457
458 {{code language="none"}}/Timing/time stamp{{/code}}
459 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
460 second column: microseconds
461 third column: Train ID of FLASH
462 \\
463
464 [[Contents>>doc:||anchor="Contents"]]
465
466 \\
467
468 ==== Pump Probe Laser (FLASH1) ====
469
470 {{code language="none"}}/FL1/Experiment/Pump probe laser/laser attenuation{{/code}}
471
472 //always saved (PBD)//
473 DOOCS prop : {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/ROT2.CURRENT{{/code}}
474 DAQ channel: {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/ROT2.CURRENT{{/code}}
475 desc: attenuation of the PPLaser (rotation of a waveplate)
476 units : 0 no transmission , 1: full transmission
477
478 \\
479
480 {{code language="none"}}/FL1/Experiment/Pump probe laser/laser delay{{/code}}
481 //always saved (PBD)//
482 DOOCS prop : {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/DLY1.CURRENT{{/code}}
483 DAQ channel: {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/DLY1.CURRENT{{/code}}
484 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
485 units : ps ( pos delay means IR comes later)
486
487 \\
488
489 {{code language="none"}}/FL1/Experiment/Pump probe laser/delay line IK220.0/ENC.DELAY{{/code}}
490 //always saved (PBD)//
491 DOOCS prop : {{code language="none"}}TTF2.FEL/DELLINE.ENC/IK220.0/ENC.DELAY{{/code}}
492 DAQ channel: {{code language="none"}}TTF2.FEL/DELLINE.ENC/IK220.0:ENC.DELAY{{/code}}
493 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
494 units : ps ( pos delay means IR comes later)
495
496 \\
497
498 {{code language="none"}}/FL1/Experiment/Pump probe laser/Synchronization/timing jitter RMS GECCO{{/code}}
499 //always saved (PBD)//
500 DOOCS prop : {{code language="none"}}FLASH.SYNC/F1PPL.LASER_LOCK/28C.F1PPL1.CONTROLLER/ADV_CTRL_MANAGER.0.PID_INPUT_JITTER.2.RD{{/code}}
501 DAQ channel: {{code language="none"}}FLASH.SYNC/F1PPL.LASER_LOCK/28C.F1PPL1.CONTROLLER/ADV_CTRL_MANAGER.0.PID_INPUT_JITTER.2.RD{{/code}}
502 desc: rms jitter of the GECCO (% class="twikiNewLink" %)TiSa(%%) Oscillator units: fs
503
504 \\
505
506 {{code language="none"}}/FL1/Experiment/Pump probe laser/streak camera delay time{{/code}}
507 //always saved (PBD)//
508 DOOCS prop : {{code language="none"}}TTF2.FEL/TDOLFEL/TDOLFEL/STREAK.CAM.TIME{{/code}}
509 DOOCS prop : {{code language="none"}}TTF2.FEL/TDOLFEL/TDOLFEL/STREAK.CAM.TIME{{/code}}
510 desc: delaytime between the optical laser and the FEL units: ps
511
512 \\
513
514 [[Contents>>doc:||anchor="Contents"]]
515
516 \\
517
518 ==== User Data (FLASH1) ====
519
520 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.
521
522 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
523
524 The most common and permanently installed device used by experiment are our ADCs:
525
526 ===== GHz ADCs =====
527
528 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]]**
529 //saved on DEMAND in the user DAQ//
530 \\The HDF5 names for the ADC traces are depending on the beamline :
531 \\PG Beamline:
532 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH00/TD{{/code}}
533 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH01/TD{{/code}}
534 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH02/TD{{/code}}
535 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH03/TD{{/code}}
536
537 BL Beamlines:
538 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH00/TD{{/code}}
539 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH01/TD{{/code}}
540 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH02/TD{{/code}}
541 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH03/TD{{/code}}
542 \\{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH00/TD{{/code}}
543 {{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH01/TD{{/code}}
544 \\{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH02/TD{{/code}}
545 {{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH03/TD{{/code}}
546
547 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
548 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.
549 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00{{/code}}
550
551 In addition there are also additional parameters saved like:
552
553 * {{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.
554 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
555 * {{code language="none"}}error (ADC):{{/code}} 0 indicates that there was no error
556
557 ===== MHz ADCs =====
558
559 similar to the GHz ADCs the MHz ADCs are saved with HDF5 names like:
560 {{code language="none"}}/FL1/Experiment/BL1/SIS8300 100MHz ADC/CH2/TD{{/code}}
561 DOOCS prop : FLASH.FEL/ADC.SIS.BL1/EXP1.CH02/CH00.TD
562 DAQ channel: : FLASH.FEL/ADC.SIS.BL1/EXP1.CH02
563
564 In addition there are also additional parameters saved like:
565
566 * {{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.
567 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
568
569 [[Contents>>doc:||anchor="Contents"]]
570
571 \\
572
573 \\
574
575 \\
576
577 === FLASH2 ===
578
579 There is analog to FLASH1 a permanently running "PhotonDagnostic DAQ FLASH2" (PBD2) and 2 User DAQs
580
581 ==== Beamline info (FLASH2) ====
582
583 (% style="color: rgb(255,153,0);" %)(not yet available){{code language="none"}}/FL2/Beamlines/Attenuator/pressure  {{/code}}(%%)
584 (% style="color: rgb(193,199,208);" %)//always saved (PBD2)// (%%)
585 (% style="color: rgb(193,199,208);" %)DOOCS prop : {{code language="none"}}FLASH.FEL/ATT.GAS_DOSING/FL2.HALL/PRESSURE{{/code}} (%%)
586 (% style="color: rgb(193,199,208);" %)DAQ channel:  {{code language="none"}}FLASH.FEL/ATT.GAS_DOSING/FL2.HALL/PRESSURE{{/code}} (%%)
587 (% style="color: rgb(193,199,208);" %)desc: set pressure in the gas attenuator (%%)
588 (% style="color: rgb(193,199,208);" %)units: mbar(%%)
589 \\
590
591 {{code language="none"}}/FL2/Beamlines/FL20/Shutter/open{{/code}}
592 //always saved (PBD2)//
593 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.SIS.FL2FS/FL20.SHUTTER/CH00.TD{{/code}}
594 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.SIS.FL2FS/FL20.SHUTTER{{/code}}
595 desc: BL Beamline Fast shutter state: 1 is open, 0 is closed ( for technical reasons there are 100 vales of this state saved ...)
596 units: none
597
598
599 {{code language="none"}}/FL2/Beamlines/Filter wheel/position wheel 1{{/code}}
600 //always saved (PBD2)//
601 DOOCS prop : {{code language="none"}}FLASH.FEL/FL20H.PH.MOTOR/MOTOR1.MOT3/FPOS{{/code}}
602 DAQ channel: FLASH.FEL/FL20H.PH.MOTOR/MOTOR1.MOT3/FPOS
603 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]]**
604 units: degree
605 \\
606
607
608 //always saved (PBD2)//
609 \\\\**[[here>>doc:FLASHUSER.jddd-linked help pages.Filter-Units.Filter wheels in FLASH1 and FLASH2.WebHome]]**
610 {{code language="none"}}/FL2/Beamlines/Filter wheel/position wheel 2 DOOCS prop : FLASH.FEL/FL20H.PH.MOTOR/MOTOR2.MOT3/FPOS DAQ channel: FLASH.FEL/FL20H.PH.MOTOR/MOTOR2.MOT3/FPOS desc: Position of the BL filter wheel 2 - to correlate with the filter material please look units: degree{{/code}}
611
612 \\
613
614 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
615
616 [[Contents>>doc:||anchor="Contents"]]
617
618 \\
619
620 \\
621
622 ==== Photon Diagnostics SASE ([[XGMD>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/gmd_intensity_and_position/index_eng.html||shape="rect"]] - FLASH2) ====
623
624 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
625 //always saved (PBD2)//
626 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
627 DAQ channel:{{code language="none"}} FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
628 desc : calibrated average ( ~~ 20 sec averaging time ) SASE Energy/pulse measured in the TUNNEL before the attenuator (ion current)
629 units : microJ
630
631 \\
632
633 (% style="color: rgb(255,204,0);" %)average Sigma    to be included in
634
635 (% style="color: rgb(193,199,208);" %){{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel uncertainty{{/code}} (%%)
636 (% style="color: rgb(193,199,208);" %)//always saved (PBD2)// (%%)
637 (% style="color: rgb(193,199,208);" %)DOOCS prop : FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA (%%)
638 (% style="color: rgb(193,199,208);" %)DAQ channel: FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA (%%)
639 (% style="color: rgb(193,199,208);" %)desc :  This parameter gives an indication of the error of the measurement of the average 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)(%%)
640 (% style="color: rgb(193,199,208);" %)units : microJ
641
642 \\
643
644 \\
645
646 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
647 //always saved (PBD2)//
648 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
649 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
650 desc : Energy per pulse measured in the Tunnel  (in fromt of the gas attenuator and the apertures in the Hall)
651 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]]**
652
653 \\
654
655 \\
656
657 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel uncertainty (sigma){{/code}}
658 //always saved (PBD2)//
659 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.SIGMA.TD{{/code}}
660 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL:4{{/code}}
661 desc :(% 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)(%%)
662 units : a.u. (more or less µJ - related to the value of the pulse energy )
663
664
665 {{code language="none"}}{{/code}}
666
667 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 !
668
669 \\
670
671 Besides  pulse energy the GMD also provides information about the beam position
672
673 \\
674
675 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel horizontal{{/code}}
676 //always saved (PBD2)//
677 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
678 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
679 desc : the Average ( ~~ 20 sec averaging time ) Beam position of the photon Beam determined by the GMD (tunnel, x=horizontal)
680 units : mm
681
682 \\
683
684 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel vertical{{/code}}
685 //always saved (PBD2)//
686 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
687 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
688 desc : the Average ( ~~ 20 sec averaging time ) Beam position of the photon Beam determined by the GMD (tunnel, x=horizontal)
689 units : mm
690
691 \\
692
693
694 //always saved (PBD2)//
695 \\\\{{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position tunnel x DOOCS prop : FLASH.FEL/XGM.BPM/FL2.HALL/X.TDDAQ channel: FLASH.FEL/XGM.BPM/FL2.HALL:2 desc: {{/code}}Besides the well calibrated averaged beam position information there is also the option
696 {{code language="none"}}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 ...)units : mm    {{/code}}
697
698 {{code language="none"}}(x=horizontal, y = vertial){{/code}}
699
700 again the same parameter set is available for the **HALL GMD**
701
702 \\
703
704 \\
705
706 ==== Photon Diagnostics OPIS[[ >>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]](FLASH2) ====
707
708 for more info see:** [[ OPIS>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]]**
709
710 (The OPIS hall is not installed yet ...)
711
712 \\
713
714 {{code language="none"}}/FL2/Photon Diagnostic/Wavelength/OPIS tunnel/Processed/mean photon energy{{/code}}
715 // saved opon request (PBD2)//
716 DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL042{{/code}}
717 DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL042{{/code}}
718 desc : mean photon energy ( ~~ 1 sec averaging time ) measured in the TUNNEL for a specific bunch out of the bunch train (via photoelectron spectroscopy)
719 units : eV
720
721 \\
722
723 {{code language="none"}}/FL2/Photon Diagnostic/Wavelength/OPIS tunnel/Processed/mean wavelength{{/code}}
724 // saved opon request (PBD2)//
725 DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL040{{/code}}
726 DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL040{{/code}}
727 desc : meanwavelength ( ~~ 1 sec averaging time ) measured in the TUNNEL for a specific bunch out of the bunch train (via photoelectron spectroscopy)
728 units : nm
729
730 \\
731
732 {{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}}
733 // saved opon request (PBD2)//
734 DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL060{{/code}}
735 DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL060{{/code}}
736 desc : The bunch number of the bunch used for the wavelength calculation
737 units :
738
739 \\
740
741 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 savng the compleate 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"]] ( respobsible for [[OPIS>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]])
742
743 \\
744
745 In case OPIS was not operating there is still informaton 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 ...
746
747 \\
748
749 \\
750
751 ==== Electron Beam properties (FLASH2) ====
752
753 ===== bunch charge =====
754
755 {{code language="none"}}/FL2/Electron Diagnostic/Bunch charge/after undulator{{/code}}
756 //always saved (PBD2)//
757 DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
758 DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
759 desc: electron bunch charge FLASH2 (average value for each bunchtrain).
760 units: nC
761
762 \\
763
764 ===== undulator settings =====
765
766 {{code language="none"}}/FL2/Electron Diagnostic/Undulator setting/set wavelength{{/code}}
767 //always saved (PBD2)//
768 DOOCS prop : {{code language="none"}}TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH{{/code}}
769 DAQ channel:  {{code language="none"}}TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH{{/code}}
770 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 % ...
771 units: nm
772
773 {{code language="none"}}/FL2/Electron Diagnostic/Undulator setting/SASE14 gap{{/code}}
774 //always saved (PBD2)//
775 DOOCS prop : {{code language="none"}}FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP{{/code}}
776 DAQ channel:  {{code language="none"}}FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP{{/code}}
777 desc: gap value of the undulators. This can be used to follow up how many undulators were closed and if there was a taper
778 units: mm
779
780 The gap values are saved for all 12 undulators (Nr 3 to 14). Undulator 14 is the one closest to the experimental hall.
781
782 =====
783 arrival time =====
784
785 {{code language="none"}}/FL2/Electron Diagnostic/BAM/8FL2XTDS/electron bunch arrival time (low charge){{/code}}
786 //always saved (PBD2)//
787 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/8FL2XTDS/LOW_CHARGE_ARRIVAL_TIME{{/code}}
788 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/8FL2XTDS.LOW_CHARGE_ARRIVAL_TIME{{/code}}
789 desc: Electron bunch arrival time measured with the BAM after the FLASH2 undulator (pulse resolved data)
790 units: ps (bigger numbers indicate later arrivaltime of the electrons)
791
792 **FL1**{{code language="none"}}//Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
793 //always saved (PBD2)//
794 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/4DBC3/LOW_CHARGE_ARRIVAL_TIME{{/code}}
795 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/4DBC3.LOW_CHARGE_ARRIVAL_TIME{{/code}}
796 desc: Electron bunch arrival time measured with the BAM  in the accelerator  (pulse resolved data)
797 units: ps (bigger numbers indicate later arrivaltime of the electrons)
798
799 \\
800
801 {{info title="BAM hints"}}
802 * The BAM 4DBC3 measures the arrivaltime of** FLASH 1 and FLASH2** in the same data set (thus also sorted in at /FL1/ !).
803 * 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 
804 ** 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
805 * [[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]]
806 * [[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"]]
807 * a recent  [[talk about the working principle of the BAM>>attach:BAM-basics and outlook-2018_DESY-template_16-9Format.pdf]]
808 {{/info}}
809
810
811 [[Contents>>doc:||anchor="Contents"]]
812
813 \\
814
815 ==== Timing information, rep rate etc.  (FLASH2) ====
816
817 ===== start time of FLASH2 =====
818
819 {{code language="none"}}/FL2/Timing/start time flash2{{/code}}
820 //always saved (PBD2)//
821 DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/BUNCH_POSITION.2{{/code}}
822 DAQ channel: {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/BUNCH_POSITION.2{{/code}}
823 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 ...)
824 units: µs
825
826 ===== bunch repetition rate =====
827
828 {{code language="none"}}/FL2/Timing/repetition rate{{/code}}
829 //always saved (PBD2)//
830 DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.2{{/code}}
831 DAQ channel: {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.2{{/code}}
832 desc: repetition rate of the bunches / pulses within the burst (FLASH2)
833 units: kHz
834
835 ===== actual number of pulses =====
836
837 {{code language="none"}}/FL1/Timing/actual number of bunches{{/code}}
838 //always saved (PBD2)//
839 DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH2{{/code}}
840 DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH2{{/code}}
841 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)
842 units:
843 \\
844
845 ===== actual pulse pattern recorded after the undulator =====
846
847 {{code language="none"}}/FL1/Timing/Bunch pattern/pattern after undulator{{/code}}
848 //always saved (PBD2)//
849 DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN.PULSEPATTERN{{/code}}
850 DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN.PULSEPATTERN{{/code}}
851 desc: The bunch pattern as function of time in a burst recorded by toroide diagnostic BEHIND the undulator. (FLASH2)
852 units:
853 \\
854
855 ===== Train ID =====
856
857 {{code language="none"}}/Timing/train ID{{/code}}
858 //always saved (PBD2)//
859 DOOCS prop : {{code language="none"}}none{{/code}}
860 DAQ channel: {{code language="none"}}none{{/code}}
861 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 !)
862 units:
863 \\
864
865 ===== Train time =====
866
867 //always saved (PBD2)
868 //{{code language="none"}}/Timing/train time{{/code}}
869 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
870 units: d h min s cs
871 \\
872
873 {{code language="none"}}/Timing/time stamp{{/code}}
874
875 //always saved (PBD2)//
876 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
877 second column: microseconds
878 third column: Train ID of FLASH
879 \\
880
881 [[Contents>>doc:||anchor="Contents"]]
882
883 \\
884
885 ==== User Data (FLASH2) ====
886
887 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.
888
889 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
890
891 The most common and permanently installed device used by experiment are our ADCs:
892
893 ===== GHz ADCs =====
894
895 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]]**
896 //saved on DEMAND in the user DAQ//
897 \\Up to now there are 4 channels available at FL24
898 \\\\{{code language="none"}}/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH00/TD{{/code}}
899 {{code language="none"}}/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH01/TD{{/code}}
900 \\{{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}}
901
902 \\
903
904 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.FL2EXP1/FL2EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
905 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.
906 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.FL2EXP1/FL2EXP1.CH00{{/code}}
907
908 In addition there are also additional parameters saved like:
909
910 * {{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.
911 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
912 * {{code language="none"}}error (ADC):{{/code}} 0 indicates that there was no error
913 * {{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.
914
915 ===== MHz ADCs =====
916
917 similar to the GHz ADCs the MHz ADCs are saved with HDF5 names like:
918 {{code language="none"}}/FL2/Experiment/MTCA-EXP1/SIS8300 100MHz ADC/CH2/TD{{/code}}
919 DOOCS prop : FLASH.FEL/ADC.SIS.FL2EXP1/FL2EXP1.CH02/CH00.TD
920 DAQ channel: : FLASH.FEL/ADC.SIS.FL2EXP1/FL2EXP1.CH02
921
922 In addition there are also additional parameters saved like:
923
924 * {{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.
925 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
926
927 [[Contents>>doc:||anchor="Contents"]]
928
929 \\
930
931 \\
932
933 ==== Pump Probe Laser (FLASH2) ====
934
935 There may be more information available from the "Laser DAQ". laese contact your Laser Local Contact.
936
937
938 {{code language="none"}}/FL2/Experiment/Pump probe laser/FL24/attenuator position{{/code}}//always saved (PBD2)//
939 DOOCS prop : {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR1.FL24/FPOS{{/code}}
940 DAQ channel: {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR1.FL24/FPOS{{/code}}
941 desc: attenuation of the PPLaser in the FL24 hutch (rotation of a waveplate)
942 units : deg.
943
944 \\
945
946
947 {{code language="none"}}/FL2/Experiment/Pump probe laser/FL24/polarization position{{/code}}//always saved (PBD2)//
948 DOOCS prop : {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR2.FL24/FPOS{{/code}}
949 DAQ channel: {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR2.FL24/FPOS{{/code}}
950 desc: attenuation of the PPLaser in the FL24 hutch (rotation of a waveplate)
951 units : deg.
952
953 \\
954
955 {{code language="none"}}/FL1/Experiment/Pump probe laser/laser delay readback{{/code}}
956 //always saved (PBD2)//
957 DOOCS prop : {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/FMC0.MD22.0.POSITION.RD{{/code}}
958 DAQ channel: {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/FMC0.MD22.0.POSITION.RD{{/code}}
959 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)
960 units : ps )
961
962 \\
963
964 {{code language="none"}}/FL1/Experiment/Pump probe laser/Synchronization/timing jitter RMS{{/code}}
965 //always saved (PBD)//
966 DOOCS prop : {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/CURRENT_INPUT_JITTER.RD{{/code}}
967 DAQ channel: {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/CURRENT_INPUT_JITTER.RD{{/code}}
968 desc: rms jitter of the fs-Oscillator
969 units: fs
970
971 [[Contents>>doc:||anchor="Contents"]]
972
973 \\
974
975 === "/uncategorized/" ===
976
977 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
978
979 \\
980
981 === HDF5 structure revisions ===
982
983 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:
984
985 \\
986
987 * All FLASH1 related HDF groups moved to group "/FL1", i.e. a new prefix "/FL1" is added to their HDF path.
988 * 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".
989 * A number of inconsistent names have been streamlined. The relevant changes are listed in the following table.
990
991 \\
992
993 (% class="wrapped" %)
994 |=(((
995 earlier HDF path (vers. 0.2)
996 )))|=(((
997 is now (vers. 0.3)
998 )))
999 |(((
1000 /Photon Diagnostic/GMD/Beam position/position BDA x
1001 )))|(((
1002 /FL1/Photon Diagnostic/GMD/Beam position/position BDA horizontal
1003 )))
1004 |(((
1005 /Photon Diagnostic/GMD/Beam position/position BDA y
1006 )))|(((
1007 /FL1/Photon Diagnostic/GMD/Beam position/position BDA vertical
1008 )))
1009 |(((
1010 /Photon Diagnostic/GMD/Beam position/position tunnel x
1011 )))|(((
1012 /FL1/Photon Diagnostic/GMD/Beam position/position tunnel horizontal
1013 )))
1014 |(((
1015 /Photon Diagnostic/GMD/Beam position/position tunnel y
1016 )))|(((
1017 /FL1/Photon Diagnostic/GMD/Beam position/position tunnel vertical
1018 )))
1019 |(((
1020 /Experiment/Pump probe laser/BPM/position x
1021 )))|(((
1022 /FL1/Experiment/Pump probe laser/BPM/position horizontal
1023 )))
1024 |(((
1025 /Experiment/Pump probe laser/BPM/position y
1026 )))|(((
1027 /FL1/Experiment/Pump probe laser/BPM/position vertical
1028 )))
1029 |(((
1030 /FL2/Photon Diagnostic/GMD/Beam position/Average/position hall horizontal
1031 )))|(((
1032 /FL2/Photon Diagnostic/GMD/Average beam position/position hall horizontal
1033 )))
1034 |(((
1035 /FL2/Photon Diagnostic/GMD/Beam position/Average/position hall vertical
1036 )))|(((
1037 /FL2/Photon Diagnostic/GMD/Average beam position/position hall vertical
1038 )))
1039 |(((
1040 /FL2/Photon Diagnostic/GMD/Beam position/Average/position tunnel horizontal
1041 )))|(((
1042 /FL2/Photon Diagnostic/GMD/Average beam position/position tunnel horizontal
1043 )))
1044 |(((
1045 /FL2/Photon Diagnostic/GMD/Beam position/Average/position tunnel vertical
1046 )))|(((
1047 /FL2/Photon Diagnostic/GMD/Average beam position/position tunnel vertical
1048 )))
1049 |(((
1050 /FL2/Photon Diagnostic/GMD/Average energy/hall
1051 )))|(((
1052 /FL2/Photon Diagnostic/GMD/Average energy/energy hall
1053 )))
1054 |(((
1055 /FL2/Photon Diagnostic/GMD/Average energy/hall (raw)
1056 )))|(((
1057 /FL2/Photon Diagnostic/GMD/Average energy/energy hall (raw)
1058 )))
1059 |(((
1060 /FL2/Photon Diagnostic/GMD/Average energy/tunnel
1061 )))|(((
1062 /FL2/Photon Diagnostic/GMD/Average energy/energy tunnel
1063 )))
1064 |(((
1065 /FL2/Photon Diagnostic/GMD/Average energy/tunnel (raw)
1066 )))|(((
1067 /FL2/Photon Diagnostic/GMD/Average energy/energy tunnel (raw)
1068 )))
1069 |(((
1070 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/hall x
1071 )))|(((
1072 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position hall horizontal
1073 )))
1074 |(((
1075 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/hall y
1076 )))|(((
1077 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position hall vertical
1078 )))
1079 |(((
1080 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/tunnel x
1081 )))|(((
1082 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position tunnel horizontal
1083 )))
1084 |(((
1085 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/tunnel y
1086 )))|(((
1087 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position tunnel vertical
1088 )))
1089
1090 \\
1091
1092 [[Contents>>doc:||anchor="Contents"]]
1093
1094 \\
1095
1096 == Example code showing how to access HDF5 files ==
1097
1098 \\
1099
1100 === Samples how to read HDF5 with Matlab ===
1101
1102 The examples apply to HDF files with HDF tree version before vers. 0.3.0.
1103
1104 (% style="color: rgb(0,128,0);" %)%% read in the needed data p=path; path(p,'D:\mess-daten\DAQ-data\hdf5\Gotthard') % add the actual folder to the path hdf5file='FLASH1_EXP-2016-03-16T1420.h5'; % data with Gotthard and VLS
1105
1106 (% style="color: rgb(0,128,0);" %)% h5disp(hdf5file,'/','min') % to get an idea what is in the file % h5info(hdf5file,'/Experiment/Gotthard1/BL.0') % get info about the individual channel
1107
1108 (% style="color: rgb(0,128,0);" %)% read a Number per 10 Hz pulse train:
1109
1110 (% class="code" %)
1111 (((
1112 FEL_Wavelength_energy_server=h5read(hdf5file,'/Photon Diagnostic/Wavelength/Calculated by energy/wavelength' );
1113 )))
1114
1115 (% style="color: rgb(0,128,0);" %)% read in a 1D array (spectrum) %GMD data GMD_Spectrum=h5read(hdf5file,'/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA');
1116
1117 (% style="color: rgb(0,128,0);" %)% This reads in all the data . One can also limit the amount of data read to a subset of the data stored in the file. e.g. for image Data (Gotthard)
1118
1119 \\
1120
1121 (% class="code" %)
1122 (((
1123 Start_event= 500 ; % define the first 10 Hz event
1124 Number_of_events = 20; % how many 10 Hz events to load
1125 )))
1126
1127 (% style="color: rgb(0,128,0);" %)% read only part of the data:
1128
1129 (% class="code" %)
1130 (((
1131 Gotthard_data=h5read(hdf5file,'/Experiment/Gotthard1/BL.0',[2 650 Start_event],[50 85 Number_of_events]);
1132 )))
1133
1134 (% style="color: rgb(0,128,0);" %)% start stop increment "manual" for 2 D data : [start bunch number in Gotthard data start pixelin spectrum start sample in 10 Hz trains], % [number of bunches in the Gotthard data number of points in the spectrum number of spectra ]
1135
1136 (% class="code" %)
1137 (((
1138 VLS_Spectrum=h5read(hdf5file,'/Photon Diagnostic/Wavelength/VLS online spectrometer/PCO.ROI.X',[400 Start_event],[200 Number_of_events] );
1139
1140 )))
1141
1142 (% style="color: rgb(0,128,0);" %)% start stop increment "manual" for 1D data : [start sample in the spectrum start sample in 10 Hz trains],[number of points in the spectrum number of spectra ]
1143
1144 (% style="color: rgb(0,128,0);" %)%GMD data
1145
1146 (% class="code" %)
1147 (((
1148 GMD_Spectrum=h5read(hdf5file,'/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA',[1 Start_event],[40 Number_of_events] );
1149 )))
1150
1151 [[Contents>>doc:||anchor="Contents"]]
1152
1153 \\
1154
1155 == HDF5 and DOOCS ==
1156
1157 Here is an outdated [[list with the available properties that are always saved (PBD) for FLASH1 as>>attach:FLASH1__DaqChannel2HdfNamePbd.xlsx]] HDF5 names and the corresponding DOOCS names
1158
1159 [[Contents>>doc:||anchor="Contents"]]