Wiki source code of The FLASH HDF5 structure

Version 33.1 by sndueste on 2020/10/28 11:26
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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://www.hdfgroup.org/HDF5/||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://support.hdfgroup.org/products/java/hdfview/index.html||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 == 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 organised according to train IDs. The general structure is:
24
25 * Electron Diagnostic
26 * Photon Diagnostics
27 * Beamlines
28 * Experiment
29 * Timing
30 [[~[~[image:url:http://hasfweb.desy.de/pub/Setup/HDF5main/HDF5_structure.jpg~|~|alt="HDF5_structure.jpg" width="700" height="500"~]~]>>attach:HDF5_structure.jpg]]
31
32 A detailled description of (most) channels can be found in the lower part of the hdf5 viewer:
33 [[~[~[image:url:http://hasfweb.desy.de/pub/Setup/HDF5main/HDF5_structure_desc.jpg~|~|alt="HDF5_structure_desc.jpg" width="341" height="413"~]~]>>attach:HDF5_structure_desc.jpg]]
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 \\
58
59 == Most popular FLASH parameters and their names in HDF5, DOOCS and (raw) DAQ ==
60
61 {{id name="DOOCSparameters"/}}
62
63 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"]].
64 The most common and often used ones are summarized below:
65
66 Note, the HDF group and data set names apply to our HDF tree version since vers. 0.3.0.
67
68 \\
69
70 === FLASH1 ===
71
72 \\
73
74 ==== Beamline info (FLASH1) ====
75
76 {{code language="none"}}/FL1/Beamlines/Attenuator/pressure{{/code}}
77 //always saved (PBD)//
78 DOOCS prop : {{code language="none"}}FLASH.FEL/GAS_DOSING/FL1.ATTENUATOR/PRESSURE{{/code}}
79 DAQ channel: {{code language="none"}}FLASH.FEL/GAS_DOSING/FL1.ATTENUATOR/PRESSURE{{/code}}
80 desc: set pressure in the gas attenuator
81 units: mbar
82 \\
83
84 {{code language="none"}}/FL1/Beamlines/BL/Fast shutter/open{{/code}}
85 //always saved (PBD)//
86 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/BL.SHUTTER/CH00.TD{{/code}}
87 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/BL.SHUTTER{{/code}}
88 desc: BL Beamline Fast shutter state
89 units: none
90 \\
91
92 {{code language="none"}}/FL1/Beamlines/PG/Fast shutter/open{{/code}}
93 //always saved (PBD)//
94 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/PG.SHUTTER/CH00.TD{{/code}}
95 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.SIS.FL1FS/PG.SHUTTER{{/code}}
96 desc: PG Beamline Fast shutter state
97 units: none
98 \\
99
100 {{code language="none"}}/FL1/Beamlines/BL/Filters/BL filter wheel/position filter 1{{/code}}
101 //always saved (PBD)//
102 DOOCS prop : {{code language="none"}}TTF2.FEL/BLFILTERS1/FILTER1/FW.MOTOR.POS{{/code}}
103 DAQ channel: {{code language="none"}}TTF2.FEL/BLFILTERS1/FILTER1/FW.MOTOR.POS{{/code}}
104 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]]
105 units: degree
106 \\
107
108 {{code language="none"}}/FL1/Beamlines/BL/Filters/BL filter wheel/position filter 2{{/code}}
109 //always saved (PBD)//
110 DOOCS prop : {{code language="none"}}TTF2.FEL/BLFILTERS2/FILTER2/FW.MOTOR.POS{{/code}}
111 DAQ channel: {{code language="none"}}TTF2.FEL/BLFILTERS2/FILTER2/FW.MOTOR.POS{{/code}}
112 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]]
113 units: degree
114 \\
115
116 {{code language="none"}}/FL1/Beamlines/PG/Filters/position filter 1{{/code}}
117 //always saved (PBD)//
118 DOOCS prop : = TTF2.FEL/BDAF1/BDA.F1/FW.MOTOR.POS=
119 DAQ channel: {{code language="none"}}TTF2.FEL/BDAF1/BDA.F1/FW.MOTOR.POS{{/code}}
120 desc: Position of the PG filter wheel 1
121 units: degree
122 \\
123
124 {{code language="none"}}/FL1/Beamlines/PG/Filters/position filter 2{{/code}}
125 //always saved (PBD)//
126 DOOCS prop : {{code language="none"}}TTF2.FEL/BDAF2/BDA.F2/FW.MOTOR.POS{{/code}}
127 DAQ channel: {{code language="none"}}TTF2.FEL/BDAF2/BDA.F2/FW.MOTOR.POS{{/code}}
128 desc: Position of the PG filter wheel 2
129 units: degree
130 \\
131
132 {{code language="none"}}/FL1/Beamlines/PG/Filters/position filter 3{{/code}}
133 //always saved (PBD)//
134 DOOCS prop : {{code language="none"}}TTF2.FEL/PGFILTERS/PGFILTERS/FW.MOTOR.POS{{/code}}
135 DAQ channel: {{code language="none"}}TTF2.FEL/PGFILTERS/PGFILTERS/FW.MOTOR.POS{{/code}}
136 desc: Position of the PG filter wheel 3
137 units: degree
138
139 \\
140
141
142 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
143
144 [[Contents>>doc:||anchor="Contents"]]
145
146 \\
147
148 ==== 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) ====
149
150 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
151 //always saved (PBD)//
152 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT04/VAL{{/code}}
153 DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENPULSEIC{{/code}}
154 desc : calibrated average SASE Energy/pulse measured in the TUNNEL before the attenuator (ion current)
155 units : microJ
156
157 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
158 //always saved (PBD)//
159 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT34/VAL{{/code}}
160 DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENERGYPULSE.USER{{/code}}
161 desc :Energy per pulse Tunnel (from e-) - the values are set to "0" if there was no SASE beam in the FEL
162 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]]**
163
164 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel (raw){{/code}}
165 //always saved (PBD)//
166 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT14/VAL{{/code}}
167 DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENERGYPULSE.FF{{/code}}
168 desc :Energy per pulse Tunnel (from e-) - uncorrected values. There are also values saved if there was no beam ... just background noise
169 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]]**
170
171 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy BDA{{/code}}
172 //always saved (PBD)//
173 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT05/VAL{{/code}}
174 DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENPULSEIC{{/code}}
175 desc : calibrated average SASE Energy/pulse measured in the BDA (in the experimental hall) after the attenuator (ion current)
176 units : microJ
177
178 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA{{/code}}
179 //always saved (PBD)//
180 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT35/VAL{{/code}}
181 DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENERGYPULSE.USER{{/code}}
182 desc :Energy per pulse BDA (from e-) - the values are set to "0" if there was no SASE beam in the FEL
183 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]]**
184
185 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA (raw){{/code}}
186 //always saved (PBD)//
187 DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT15/VAL{{/code}}
188 DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENERGYPULSE.FF{{/code}}
189 desc :Energy per pulse BDA (from e-) - uncorrected values. There are also values saved if there was no beam ... just background noise
190 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]]**
191
192 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position BDA horizontal{{/code}}
193 //always saved (PBD)//
194 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IX.POS{{/code}}
195 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IX.POS{{/code}}
196 desc :Beam position of the photon Beam determined by the GMD (BDA, x=horizontal)
197 units : mm
198
199 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position BDA vertical{{/code}}
200 //always saved (PBD)//
201 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IY.POS{{/code}}
202 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IY.POS{{/code}}
203 desc :Beam position of the photon Beam determined by the GMD (BDA, y=vertical)
204 units : mm
205
206 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position tunnel horizontal{{/code}}
207 //always saved (PBD)//
208 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IX.POS{{/code}}
209 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IX.POS{{/code}}
210 desc :Beam position of the photon Beam determined by the GMD (TUNNEL, x=horizontal)
211 units : mm
212
213 {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position tunnel vertical{{/code}}
214 //always saved (PBD)//
215 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IY.POS{{/code}}
216 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IY.POS{{/code}}
217 desc :Beam position of the photon Beam determined by the GMD (TUNNEL, y=vertical)
218 units : mm
219
220 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength{{/code}}
221 _always saved (when Spectrum is measured !!) (PBD) _
222 DOOCS prop : {{code language="none"}}TTF2.EXP/PHOTONWL.ML/WAVE_LENGTH/VAL.TD{{/code}}
223 DAQ channel: {{code language="none"}}PBD.PHOTONWL.ML/WAVE_LENGTH{{/code}}
224 desc : XUV Spectrum measured with the "tunnel spectrometer"
225 units :
226
227 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength start value{{/code}}
228 _always saved (when Spectrum is measured !!) (PBD) _
229 DOOCS prop : {{code language="none"}}TTF2.EXP/PBD.PHOTONWL.ML/BSTART/VAL{{/code}}
230 DAQ channel: {{code language="none"}}TTF2.EXP/PBD.PHOTONWL.ML/BSTART/VAL{{/code}}
231 desc : start value (in nm) for the wavelength axis of the XUV Spectrum measured with the "tunnel spectrometer"
232 units : nm
233
234 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength increment{{/code}}
235 _always saved (when Spectrum is measured !!) (PBD) _
236 DOOCS prop : ==
237 DAQ channel: ==
238 desc : increment value (in nm) for each pixel for the wavelength axis of the XUV Spectrum measured with the "tunnel spectrometer"
239 units : nm
240
241 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon energy{{/code}}
242 //saved on DEMAND (PBD spectrometer stream)//
243 DOOCS prop : ==
244 DAQ channel: {{code language="none"}}PBD.PHOTONEN.ML/PHOTON_ENERGY{{/code}}
245 desc : XUV Spectrum in eV measured with the "PG2 spectrometer"
246 units :
247
248 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon energy start value{{/code}}
249 //saved on DEMAND (PBD spectrometer stream)//
250 DOOCS prop : ==
251 DAQ channel: ==
252 desc : start value (in eV) for the wavelength axis of the XUV Spectrum measured with the "PG2 spectrometer"
253 units : eV
254
255 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon energy increment{{/code}}
256 //saved on DEMAND (PBD spectrometer stream)//
257 DOOCS prop : ==
258 DAQ channel: ==
259 desc : increment value (in eV) for each pixel for the wavelength axis of the XUV Spectrum measured with the "PG spectrometer"
260 units : eV
261
262 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon wavelength{{/code}}
263 //saved on DEMAND (PBD spectrometer stream)//
264 DOOCS prop : ==
265 DAQ channel: {{code language="none"}}PHOTONEN.ML/PHOTON_WAVE_LEN{{/code}}
266 desc : XUV Spectrum in nm measured with the "PG2 spectrometer"
267 units :
268
269 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon wavelength increment{{/code}}
270 //saved on DEMAND (PBD spectrometer stream)//
271 DOOCS prop : ==
272 DAQ channel: ==
273 desc : start value (in nm) for the wavelength axis of the XUV Spectrum measured with the "PG2 spectrometer"
274 units : nm
275
276 {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/PG2 spectrometer/photon wavelength start value{{/code}}
277 //saved on DEMAND (PBD spectrometer stream)//
278 DOOCS prop : ==
279 DAQ channel: ==
280 desc : increment value (in nm) for each pixel for the wavelength axis of the XUV Spectrum measured with the "PG spectrometer"
281 units : nm
282
283 [[Contents>>doc:||anchor="Contents"]]
284
285 ==== Electron Beam properties (FLASH1) ====
286
287 ===== bunch charge =====
288
289 {{code language="none"}}/FL1/Electron Diagnostic/Bunch charge/after undulator{{/code}}
290 //always saved (PBD)//
291 DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/12EXP/CHARGE.FLASH1{{/code}}
292 DAQ channel: {{code language="none"}}FLASH.DIAG/TOROID/12EXP{{/code}}
293 desc: electron bunch charge (FLASH1)
294 units: nC
295
296 =====
297 arrival time =====
298
299 {{code language="none"}}/FL1/Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
300 //always saved (PBD)//
301 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/4DBC3/LOW_CHARGE_ARRIVAL_TIME{{/code}}
302 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/4DBC3.LOW_CHARGE_ARRIVAL_TIME{{/code}}
303 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).
304 units: ps (bigger numbers indicate later arrivaltime of the electrons)
305
306 {{code language="none"}}/FL1/Electron Diagnostic/BAM/1SFELC/electron bunch arrival time (low charge){{/code}}
307 //always saved (PBD)//
308 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/1SFELC/LOW_CHARGE_ARRIVAL_TIME{{/code}}
309 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/1SFELC.LOW_CHARGE_ARRIVAL_TIME{{/code}}
310 desc: Electron bunch arrival time measured with the BAM  before the undulator (pulse resolved data). This one was newly installed in 2020.
311 units: ps (bigger numbers indicate later arrivaltime of the electrons)
312
313 {{info title="BAM hints"}}
314 * besides the arrivaltime from FLASH1 there is also the FLASH2/3 electron arrival time saved.In case of doubt ask your local contact
315 * [[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]]
316 * [[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"]]
317 * a recent  [[talk about the working principle of the BAM>>attach:BAM-basics and outlook-2018_DESY-template_16-9Format.pdf]]
318 {{/info}}
319
320 \\
321
322 ===== electron beam profile =====
323
324 {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/TDS profile{{/code}}
325 //always saved (PBD) - IF LOLA is ON and ACTIVATED in the PBD DAQ (talk to expert)//
326 DOOCS prop : {{code language="none"}}TTF2.DAQ/BEAM.PROF.ML/BEAM.PROF/OUT.PROF.CCCED{{/code}}
327 DAQ channel: {{code language="none"}}PBD.BEAM.PROF.ML/DAQ.OUT.PROF.CCCED{{/code}}
328 desc: temporal profile of electron bunch, y axis in Ampers (FLASH1)
329 units: pixel
330 \\
331
332 {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/Expert stuff/TDS calibration constant{{/code}}
333 //always saved (PBD) - IF LOLA is ON and ACTIVATED in the PBD DAQ (talk to expert)//
334 DOOCS prop : {{code language="none"}}TTF2.DAQ/BEAM.PROF.ML/BEAM.PROF/CALIB.CONST.T{{/code}}
335 DAQ channel: = PBD.BEAM.PROF.ML/CCT=
336 desc: TDS calibration constant for the x-axis of the profiles: fs per pixel
337 units: fs per pixel
338 \\
339
340 {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/TDS profile width rms{{/code}}
341 //always saved (PBD) - IF LOLA is ON and ACTIVATED in the PBD DAQ (talk to expert)//
342 DOOCS prop : {{code language="none"}}TTF2.DAQ/BEAM.PROF.ML/BEAM.PROF/SOWS.W.CCTED{{/code}}
343 DAQ channel: {{code language="none"}}PBD.BEAM.PROF.ML/PROFWIDTHCCTED{{/code}}
344 desc: rms pulse width of the measures TDS electron bunch profile
345 units: fs
346
347 ===== electron bunch energy =====
348
349 {{code language="none"}}/FL1/Electron Diagnostic/Electron energy/average electron energy{{/code}}
350 _always saved (PBD)
351 DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_INTRA_MEAN/VAL{{/code}}
352 DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_MEAN{{/code}}
353 desc: electron bunch energy (average over the bunch train)
354 units: (% class="twikiNewLink" %)MeV(%%)
355 \\
356
357 {{code language="none"}}/FL1/Electron Diagnostic/Electron energy/pulse resolved energy{{/code}}
358 _always saved (PBD)
359 DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_SPECT/VAL.TD{{/code}}
360 DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_SPECT{{/code}}
361 desc: electron bunch energy bunch resolved
362 units: (% class="twikiNewLink" %)MeV
363
364 \\
365
366 {{code language="none"}}/FL1/Electron Diagnostic/Electron energy/wavelength bunch train average{{/code}}
367 _always saved (PBD)
368 DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/LAMBDA_MEAN/VAL{{/code}}
369 DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/LAMBDA_MEAN{{/code}}
370 desc: Wavelength calculated by the electron bunch energy (average over the bunch train) (FLASH1)
371 units: nm
372 \\
373
374 [[Contents>>doc:||anchor="Contents"]]
375
376 \\
377
378 ==== Timing information, rep rate etc.  (FLASH1) ====
379
380 ===== bunch repetition rate =====
381
382 {{code language="none"}}/FL1/Timing/repetition rate{{/code}}
383 //always saved (PBD)//
384 DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.1{{/code}}
385 DAQ channel: {{code language="none"}}TTF2.UTIL/LASER.CONTROL/GUN/PULSE_FREQ{{/code}}
386 desc: repetition rate of the bunches / pulses within the burst (FLASH1)
387 units: kHz
388 \\
389
390 ===== set number of pulses =====
391
392 {{code language="none"}}/FL1/Timing/set number of bunches{{/code}}
393 //always saved (PBD)//
394 DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH1{{/code}}
395 DAQ channel: {{code language="none"}}TTF2.UTIL/LASER.CONTROL/GUN/PULSE_NUM{{/code}}
396 desc: Number of pulses set at the gun (FLASH1)
397 units:
398
399 ===== actual number of pulses =====
400
401 {{code language="none"}}/FL1/Timing/actual number of bunches{{/code}}
402 //always saved (PBD)//
403 DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/12EXP/NUMBEROFBUNCHES.FLASH1{{/code}}
404 DAQ channel: {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP{{/code}}
405 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)
406 units:
407 \\
408
409 ===== actual pulse pattern recorded after the undulator =====
410
411 {{code language="none"}}/FL1/Timing/Bunch pattern/pattern after undulator{{/code}}
412 //always saved (PBD)//
413 DOOCS prop : {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP/CHARGE.TD{{/code}}
414 DAQ channel: {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP{{/code}}
415 desc: The bunch pattern as function of time in a burst recorded by toroide diagnostic BEHIND the undulator. (FLASH1)
416 units:
417 \\
418
419 ===== Train ID =====
420
421 {{code language="none"}}/Timing/train ID{{/code}}
422 //always saved (PBD)//
423 DOOCS prop : {{code language="none"}}none{{/code}}
424 DAQ channel: {{code language="none"}}none{{/code}}
425 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 !)
426 units:
427 \\
428
429 ===== Train time =====
430
431 {{code language="none"}}/Timing/train time{{/code}}
432 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
433 units: d h min s cs
434 \\
435
436 {{code language="none"}}/Timing/time stamp{{/code}}
437 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
438 second column: microseconds
439 third column: Train ID of FLASH
440 \\
441
442 [[Contents>>doc:||anchor="Contents"]]
443
444 \\
445
446 ==== Pump Probe Laser (FLASH1) ====
447
448 {{code language="none"}}/FL1/Experiment/Pump probe laser/laser attenuation{{/code}}
449
450 //always saved (PBD)//
451 DOOCS prop : {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/ROT2.CURRENT{{/code}}
452 DAQ channel: {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/ROT2.CURRENT{{/code}}
453 desc: attenuation of the PPLaser (rotation of a waveplate)
454 units : 0 no transmission , 1: full transmission
455
456 \\
457
458 {{code language="none"}}/FL1/Experiment/Pump probe laser/laser delay{{/code}}
459 //always saved (PBD)//
460 DOOCS prop : {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/DLY1.CURRENT{{/code}}
461 DAQ channel: {{code language="none"}}TTF2.FEL/PPDELAYCAL/PPDELAYCAL/DLY1.CURRENT{{/code}}
462 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
463 units : ps ( pos delay means IR comes later)
464
465 \\
466
467 {{code language="none"}}/FL1/Experiment/Pump probe laser/delay line IK220.0/ENC.DELAY{{/code}}
468 //always saved (PBD)//
469 DOOCS prop : {{code language="none"}}TTF2.FEL/DELLINE.ENC/IK220.0/ENC.DELAY{{/code}}
470 DAQ channel: {{code language="none"}}TTF2.FEL/DELLINE.ENC/IK220.0:ENC.DELAY{{/code}}
471 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
472 units : ps ( pos delay means IR comes later)
473
474 \\
475
476 {{code language="none"}}/FL1/Experiment/Pump probe laser/Synchronization/timing jitter RMS GECCO{{/code}}
477 //always saved (PBD)//
478 DOOCS prop : {{code language="none"}}FLASH.SYNC/F1PPL.LASER_LOCK/28C.F1PPL1.CONTROLLER/ADV_CTRL_MANAGER.0.PID_INPUT_JITTER.2.RD{{/code}}
479 DAQ channel: {{code language="none"}}FLASH.SYNC/F1PPL.LASER_LOCK/28C.F1PPL1.CONTROLLER/ADV_CTRL_MANAGER.0.PID_INPUT_JITTER.2.RD{{/code}}
480 desc: rms jitter of the GECCO (% class="twikiNewLink" %)TiSa(%%) Oscillator units: fs
481
482 \\
483
484 {{code language="none"}}/FL1/Experiment/Pump probe laser/streak camera delay time{{/code}}
485 //always saved (PBD)//
486 DOOCS prop : {{code language="none"}}TTF2.FEL/TDOLFEL/TDOLFEL/STREAK.CAM.TIME{{/code}}
487 DOOCS prop : {{code language="none"}}TTF2.FEL/TDOLFEL/TDOLFEL/STREAK.CAM.TIME{{/code}}
488 desc: delaytime between the optical laser and the FEL units: ps
489
490 \\
491
492 [[Contents>>doc:||anchor="Contents"]]
493
494 \\
495
496 ==== User Data (FLASH1) ====
497
498 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.
499
500 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
501
502 The most common and permanently installed device used by experiment are our ADCs:
503
504 ===== GHz ADCs =====
505
506 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]]**
507 //saved on DEMAND in the user DAQ//
508 \\The HDF5 names for the ADC traces are depending on the beamline :
509 \\PG Beamline:
510 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH00/TD{{/code}}
511 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH01/TD{{/code}}
512 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH02/TD{{/code}}
513 {{code language="none"}}/FL1/Experiment/PG/ADQ412 GHz ADC/CH03/TD{{/code}}
514
515 BL Beamlines:
516 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH00/TD{{/code}}
517 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH01/TD{{/code}}
518 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH02/TD{{/code}}
519 {{code language="none"}}/FL1/Experiment/BL1/ADQ412 GHz ADC/CH03/TD{{/code}}
520 \\{{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH00/TD{{/code}}
521 {{code language="none"}}/FL1/Experiment/BL2/ADQ412 GHz ADC/CH01/TD{{/code}}
522 \\{{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH02/TD{{/code}}
523 {{code language="none"}}/FL1/Experiment/BL3/ADQ412 GHz ADC/CH03/TD{{/code}}
524
525 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
526 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.
527 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.PG/EXP1.CH00{{/code}}
528
529 In addition there are also additional parameters saved like:
530
531 * {{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.
532 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
533 * {{code language="none"}}error (ADC):{{/code}} 0 indicates that there was no error
534
535 ===== MHz ADCs =====
536
537 similar to the GHz ADCs the MHz ADCs are saved with HDF5 names like:
538 {{code language="none"}}/FL1/Experiment/BL1/SIS8300 100MHz ADC/CH2/TD{{/code}}
539 DOOCS prop : FLASH.FEL/ADC.SIS.BL1/EXP1.CH02/CH00.TD
540 DAQ channel: : FLASH.FEL/ADC.SIS.BL1/EXP1.CH02
541
542 In addition there are also additional parameters saved like:
543
544 * {{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.
545 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
546
547 [[Contents>>doc:||anchor="Contents"]]
548
549 \\
550
551 \\
552
553 \\
554
555 === FLASH2 ===
556
557 There is analog to FLASH1 a permanently running "PhotonDagnostic DAQ FLASH2" (PBD2) and 2 User DAQs
558
559 ==== Beamline info (FLASH2) ====
560
561 (% style="color: rgb(255,153,0);" %)(not yet available){{code language="none"}}/FL2/Beamlines/Attenuator/pressure  {{/code}}(%%)
562 (% style="color: rgb(193,199,208);" %)//always saved (PBD2)// (%%)
563 (% style="color: rgb(193,199,208);" %)DOOCS prop : {{code language="none"}}FLASH.FEL/ATT.GAS_DOSING/FL2.HALL/PRESSURE{{/code}} (%%)
564 (% style="color: rgb(193,199,208);" %)DAQ channel:  {{code language="none"}}FLASH.FEL/ATT.GAS_DOSING/FL2.HALL/PRESSURE{{/code}} (%%)
565 (% style="color: rgb(193,199,208);" %)desc: set pressure in the gas attenuator (%%)
566 (% style="color: rgb(193,199,208);" %)units: mbar(%%)
567 \\
568
569 {{code language="none"}}/FL2/Beamlines/FL20/Shutter/open{{/code}}
570 //always saved (PBD2)//
571 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.SIS.FL2FS/FL20.SHUTTER/CH00.TD{{/code}}
572 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.SIS.FL2FS/FL20.SHUTTER{{/code}}
573 desc: BL Beamline Fast shutter state: 1 is open, 0 is closed ( for technical reasons there are 100 vales of this state saved ...)
574 units: none
575
576
577 {{code language="none"}}/FL2/Beamlines/Filter wheel/position wheel 1{{/code}}
578 //always saved (PBD2)//
579 DOOCS prop : {{code language="none"}}FLASH.FEL/FL20H.PH.MOTOR/MOTOR1.MOT3/FPOS{{/code}}
580 DAQ channel: FLASH.FEL/FL20H.PH.MOTOR/MOTOR1.MOT3/FPOS
581 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]]**
582 units: degree
583 \\
584
585
586 //always saved (PBD2)//
587 \\\\**[[here>>doc:FLASHUSER.jddd-linked help pages.Filter-Units.Filter wheels in FLASH1 and FLASH2.WebHome]]**
588 {{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}}
589
590 \\
591
592 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
593
594 [[Contents>>doc:||anchor="Contents"]]
595
596 \\
597
598 \\
599
600 ==== Photon Diagnostics SASE ([[XGMD>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/gmd_intensity_and_position/index_eng.html||shape="rect"]] - FLASH2) ====
601
602 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
603 //always saved (PBD2)//
604 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
605 DAQ channel:{{code language="none"}} FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
606 desc : calibrated average ( ~~ 20 sec averaging time ) SASE Energy/pulse measured in the TUNNEL before the attenuator (ion current)
607 units : microJ
608
609 \\
610
611 (% style="color: rgb(255,204,0);" %)average Sigma    to be included in
612
613 (% style="color: rgb(193,199,208);" %){{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel uncertainty{{/code}} (%%)
614 (% style="color: rgb(193,199,208);" %)//always saved (PBD2)// (%%)
615 (% style="color: rgb(193,199,208);" %)DOOCS prop : FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA (%%)
616 (% style="color: rgb(193,199,208);" %)DAQ channel: FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA (%%)
617 (% 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)(%%)
618 (% style="color: rgb(193,199,208);" %)units : microJ
619
620 \\
621
622 \\
623
624 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
625 //always saved (PBD2)//
626 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
627 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
628 desc : Energy per pulse measured in the Tunnel  (in fromt of the gas attenuator and the apertures in the Hall)
629 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]]**
630
631 \\
632
633 \\
634
635 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel uncertainty (sigma){{/code}}
636 //always saved (PBD2)//
637 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.SIGMA.TD{{/code}}
638 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL:4{{/code}}
639 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)(%%)
640 units : a.u. (more or less µJ - related to the value of the pulse energy )
641
642
643 {{code language="none"}}{{/code}}
644
645 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 !
646
647 \\
648
649 Besides  pulse energy the GMD also provides information about the beam position
650
651 \\
652
653 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel horizontal{{/code}}
654 //always saved (PBD2)//
655 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
656 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
657 desc : the Average ( ~~ 20 sec averaging time ) Beam position of the photon Beam determined by the GMD (tunnel, x=horizontal)
658 units : mm
659
660 \\
661
662 {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel vertical{{/code}}
663 //always saved (PBD2)//
664 DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
665 DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
666 desc : the Average ( ~~ 20 sec averaging time ) Beam position of the photon Beam determined by the GMD (tunnel, x=horizontal)
667 units : mm
668
669 \\
670
671
672 //always saved (PBD2)//
673 \\\\{{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
674 {{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}}
675
676 {{code language="none"}}(x=horizontal, y = vertial){{/code}}
677
678 again the same parameter set is available for the **HALL GMD**
679
680 \\
681
682 \\
683
684 ==== Photon Diagnostics OPIS[[ >>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]](FLASH2) ====
685
686 for more info see:** [[ OPIS>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]]**
687
688 (The OPIS hall is not installed yet ...)
689
690 \\
691
692 {{code language="none"}}/FL2/Photon Diagnostic/Wavelength/OPIS tunnel/Processed/mean photon energy{{/code}}
693 // saved opon request (PBD2)//
694 DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL042{{/code}}
695 DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL042{{/code}}
696 desc : mean photon energy ( ~~ 1 sec averaging time ) measured in the TUNNEL for a specific bunch out of the bunch train (via photoelectron spectroscopy)
697 units : eV
698
699 \\
700
701 {{code language="none"}}/FL2/Photon Diagnostic/Wavelength/OPIS tunnel/Processed/mean wavelength{{/code}}
702 // saved opon request (PBD2)//
703 DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL040{{/code}}
704 DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL040{{/code}}
705 desc : meanwavelength ( ~~ 1 sec averaging time ) measured in the TUNNEL for a specific bunch out of the bunch train (via photoelectron spectroscopy)
706 units : nm
707
708 \\
709
710 {{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}}
711 // saved opon request (PBD2)//
712 DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL060{{/code}}
713 DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL060{{/code}}
714 desc : The bunch number of the bunch used for the wavelength calculation
715 units :
716
717 \\
718
719 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"]])
720
721 \\
722
723 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 ...
724
725 \\
726
727 \\
728
729 ==== Electron Beam properties (FLASH2) ====
730
731 ===== bunch charge =====
732
733 {{code language="none"}}/FL2/Electron Diagnostic/Bunch charge/after undulator{{/code}}
734 //always saved (PBD2)//
735 DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
736 DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
737 desc: electron bunch charge FLASH2 (average value for each bunchtrain).
738 units: nC
739
740 \\
741
742 ===== undulator settings =====
743
744 {{code language="none"}}/FL2/Electron Diagnostic/Undulator setting/set wavelength{{/code}}
745 //always saved (PBD2)//
746 DOOCS prop : {{code language="none"}}TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH{{/code}}
747 DAQ channel:  {{code language="none"}}TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH{{/code}}
748 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 % ...
749 units: nm
750
751 {{code language="none"}}/FL2/Electron Diagnostic/Undulator setting/SASE14 gap{{/code}}
752 //always saved (PBD2)//
753 DOOCS prop : {{code language="none"}}FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP{{/code}}
754 DAQ channel:  {{code language="none"}}FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP{{/code}}
755 desc: gap value of the undulators. This can be used to follow up how many undulators were closed and if there was a taper
756 units: mm
757
758 The gap values are saved for all 12 undulators (Nr 3 to 14). Undulator 14 is the one closest to the experimental hall.
759
760 =====
761 arrival time =====
762
763 {{code language="none"}}/FL2/Electron Diagnostic/BAM/8FL2XTDS/electron bunch arrival time (low charge){{/code}}
764 //always saved (PBD2)//
765 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/8FL2XTDS/LOW_CHARGE_ARRIVAL_TIME{{/code}}
766 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/8FL2XTDS.LOW_CHARGE_ARRIVAL_TIME{{/code}}
767 desc: Electron bunch arrival time measured with the BAM after the FLASH2 undulator (pulse resolved data)
768 units: ps (bigger numbers indicate later arrivaltime of the electrons)
769
770 **FL1**{{code language="none"}}//Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
771 //always saved (PBD2)//
772 DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/4DBC3/LOW_CHARGE_ARRIVAL_TIME{{/code}}
773 DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/4DBC3.LOW_CHARGE_ARRIVAL_TIME{{/code}}
774 desc: Electron bunch arrival time measured with the BAM  in the accelerator  (pulse resolved data)
775 units: ps (bigger numbers indicate later arrivaltime of the electrons)
776
777 \\
778
779 {{info title="BAM hints"}}
780 * The BAM 4DBC3 measures the arrivaltime of** FLASH 1 and FLASH2** in the same data set (thus also sorted in at /FL1/ !).
781 * 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 
782 ** 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
783 * [[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]]
784 * [[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"]]
785 * a recent  [[talk about the working principle of the BAM>>attach:BAM-basics and outlook-2018_DESY-template_16-9Format.pdf]]
786 {{/info}}
787
788
789 [[Contents>>doc:||anchor="Contents"]]
790
791 \\
792
793 ==== Timing information, rep rate etc.  (FLASH2) ====
794
795 ===== start time of FLASH2 =====
796
797 {{code language="none"}}/FL2/Timing/start time flash2{{/code}}
798 //always saved (PBD2)//
799 DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/BUNCH_POSITION.2{{/code}}
800 DAQ channel: {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/BUNCH_POSITION.2{{/code}}
801 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 ...)
802 units: µs
803
804 ===== bunch repetition rate =====
805
806 {{code language="none"}}/FL2/Timing/repetition rate{{/code}}
807 //always saved (PBD2)//
808 DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.2{{/code}}
809 DAQ channel: {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.2{{/code}}
810 desc: repetition rate of the bunches / pulses within the burst (FLASH2)
811 units: kHz
812
813 ===== actual number of pulses =====
814
815 {{code language="none"}}/FL1/Timing/actual number of bunches{{/code}}
816 //always saved (PBD2)//
817 DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH2{{/code}}
818 DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH2{{/code}}
819 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)
820 units:
821 \\
822
823 ===== actual pulse pattern recorded after the undulator =====
824
825 {{code language="none"}}/FL1/Timing/Bunch pattern/pattern after undulator{{/code}}
826 //always saved (PBD2)//
827 DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN.PULSEPATTERN{{/code}}
828 DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN.PULSEPATTERN{{/code}}
829 desc: The bunch pattern as function of time in a burst recorded by toroide diagnostic BEHIND the undulator. (FLASH2)
830 units:
831 \\
832
833 ===== Train ID =====
834
835 {{code language="none"}}/Timing/train ID{{/code}}
836 //always saved (PBD2)//
837 DOOCS prop : {{code language="none"}}none{{/code}}
838 DAQ channel: {{code language="none"}}none{{/code}}
839 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 !)
840 units:
841 \\
842
843 ===== Train time =====
844
845 //always saved (PBD2)
846 //{{code language="none"}}/Timing/train time{{/code}}
847 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
848 units: d h min s cs
849 \\
850
851 {{code language="none"}}/Timing/time stamp{{/code}}
852
853 //always saved (PBD2)//
854 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
855 second column: microseconds
856 third column: Train ID of FLASH
857 \\
858
859 [[Contents>>doc:||anchor="Contents"]]
860
861 \\
862
863 ==== User Data (FLASH2) ====
864
865 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.
866
867 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
868
869 The most common and permanently installed device used by experiment are our ADCs:
870
871 ===== GHz ADCs =====
872
873 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]]**
874 //saved on DEMAND in the user DAQ//
875 \\Up to now there are 4 channels available at FL24
876 \\\\{{code language="none"}}/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH00/TD{{/code}}
877 {{code language="none"}}/FL2/Experiment/MTCA-EXP1/ADQ412 GHz ADC/CH01/TD{{/code}}
878 \\{{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}}
879
880 \\
881
882 DOOCS prop : {{code language="none"}}FLASH.FEL/ADC.ADQ.FL2EXP1/FL2EXP1.CH00/CH00.TD  or CH00.DAQ.TD{{/code}}
883 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.
884 DAQ channel: {{code language="none"}}FLASH.FEL/ADC.ADQ.FL2EXP1/FL2EXP1.CH00{{/code}}
885
886 In addition there are also additional parameters saved like:
887
888 * {{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.
889 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
890 * {{code language="none"}}error (ADC):{{/code}} 0 indicates that there was no error
891 * {{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.
892
893 ===== MHz ADCs =====
894
895 similar to the GHz ADCs the MHz ADCs are saved with HDF5 names like:
896 {{code language="none"}}/FL2/Experiment/MTCA-EXP1/SIS8300 100MHz ADC/CH2/TD{{/code}}
897 DOOCS prop : FLASH.FEL/ADC.SIS.FL2EXP1/FL2EXP1.CH02/CH00.TD
898 DAQ channel: : FLASH.FEL/ADC.SIS.FL2EXP1/FL2EXP1.CH02
899
900 In addition there are also additional parameters saved like:
901
902 * {{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.
903 * {{code language="none"}}number of samples{{/code}}: total number of samoles recorded for each 10 Hz trigger
904
905 [[Contents>>doc:||anchor="Contents"]]
906
907 \\
908
909 \\
910
911 ==== Pump Probe Laser (FLASH2) ====
912
913 There may be more information available from the "Laser DAQ". laese contact your Laser Local Contact.
914
915
916 {{code language="none"}}/FL2/Experiment/Pump probe laser/FL24/attenuator position{{/code}}//always saved (PBD2)//
917 DOOCS prop : {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR1.FL24/FPOS{{/code}}
918 DAQ channel: {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR1.FL24/FPOS{{/code}}
919 desc: attenuation of the PPLaser in the FL24 hutch (rotation of a waveplate)
920 units : deg.
921
922 \\
923
924
925 {{code language="none"}}/FL2/Experiment/Pump probe laser/FL24/polarization position{{/code}}//always saved (PBD2)//
926 DOOCS prop : {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR2.FL24/FPOS{{/code}}
927 DAQ channel: {{code language="none"}}FLASH.FEL/FLAPP2BEAMLINES/MOTOR2.FL24/FPOS{{/code}}
928 desc: attenuation of the PPLaser in the FL24 hutch (rotation of a waveplate)
929 units : deg.
930
931 \\
932
933 {{code language="none"}}/FL1/Experiment/Pump probe laser/laser delay readback{{/code}}
934 //always saved (PBD2)//
935 DOOCS prop : {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/FMC0.MD22.0.POSITION.RD{{/code}}
936 DAQ channel: {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/FMC0.MD22.0.POSITION.RD{{/code}}
937 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)
938 units : ps )
939
940 \\
941
942 {{code language="none"}}/FL1/Experiment/Pump probe laser/Synchronization/timing jitter RMS{{/code}}
943 //always saved (PBD)//
944 DOOCS prop : {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/CURRENT_INPUT_JITTER.RD{{/code}}
945 DAQ channel: {{code language="none"}}FLASH.SYNC/LASER.LOCK.EXP/FLASH2.PPL1.OSC1/CURRENT_INPUT_JITTER.RD{{/code}}
946 desc: rms jitter of the fs-Oscillator
947 units: fs
948
949 [[Contents>>doc:||anchor="Contents"]]
950
951 \\
952
953 === "/uncategorized/" ===
954
955 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
956
957 \\
958
959 === HDF5 structure revisions ===
960
961 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:
962
963 \\
964
965 * All FLASH1 related HDF groups moved to group "/FL1", i.e. a new prefix "/FL1" is added to their HDF path.
966 * 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".
967 * A number of inconsistent names have been streamlined. The relevant changes are listed in the following table.
968
969 \\
970
971 (% class="wrapped" %)
972 |=(((
973 earlier HDF path (vers. 0.2)
974 )))|=(((
975 is now (vers. 0.3)
976 )))
977 |(((
978 /Photon Diagnostic/GMD/Beam position/position BDA x
979 )))|(((
980 /FL1/Photon Diagnostic/GMD/Beam position/position BDA horizontal
981 )))
982 |(((
983 /Photon Diagnostic/GMD/Beam position/position BDA y
984 )))|(((
985 /FL1/Photon Diagnostic/GMD/Beam position/position BDA vertical
986 )))
987 |(((
988 /Photon Diagnostic/GMD/Beam position/position tunnel x
989 )))|(((
990 /FL1/Photon Diagnostic/GMD/Beam position/position tunnel horizontal
991 )))
992 |(((
993 /Photon Diagnostic/GMD/Beam position/position tunnel y
994 )))|(((
995 /FL1/Photon Diagnostic/GMD/Beam position/position tunnel vertical
996 )))
997 |(((
998 /Experiment/Pump probe laser/BPM/position x
999 )))|(((
1000 /FL1/Experiment/Pump probe laser/BPM/position horizontal
1001 )))
1002 |(((
1003 /Experiment/Pump probe laser/BPM/position y
1004 )))|(((
1005 /FL1/Experiment/Pump probe laser/BPM/position vertical
1006 )))
1007 |(((
1008 /FL2/Photon Diagnostic/GMD/Beam position/Average/position hall horizontal
1009 )))|(((
1010 /FL2/Photon Diagnostic/GMD/Average beam position/position hall horizontal
1011 )))
1012 |(((
1013 /FL2/Photon Diagnostic/GMD/Beam position/Average/position hall vertical
1014 )))|(((
1015 /FL2/Photon Diagnostic/GMD/Average beam position/position hall vertical
1016 )))
1017 |(((
1018 /FL2/Photon Diagnostic/GMD/Beam position/Average/position tunnel horizontal
1019 )))|(((
1020 /FL2/Photon Diagnostic/GMD/Average beam position/position tunnel horizontal
1021 )))
1022 |(((
1023 /FL2/Photon Diagnostic/GMD/Beam position/Average/position tunnel vertical
1024 )))|(((
1025 /FL2/Photon Diagnostic/GMD/Average beam position/position tunnel vertical
1026 )))
1027 |(((
1028 /FL2/Photon Diagnostic/GMD/Average energy/hall
1029 )))|(((
1030 /FL2/Photon Diagnostic/GMD/Average energy/energy hall
1031 )))
1032 |(((
1033 /FL2/Photon Diagnostic/GMD/Average energy/hall (raw)
1034 )))|(((
1035 /FL2/Photon Diagnostic/GMD/Average energy/energy hall (raw)
1036 )))
1037 |(((
1038 /FL2/Photon Diagnostic/GMD/Average energy/tunnel
1039 )))|(((
1040 /FL2/Photon Diagnostic/GMD/Average energy/energy tunnel
1041 )))
1042 |(((
1043 /FL2/Photon Diagnostic/GMD/Average energy/tunnel (raw)
1044 )))|(((
1045 /FL2/Photon Diagnostic/GMD/Average energy/energy tunnel (raw)
1046 )))
1047 |(((
1048 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/hall x
1049 )))|(((
1050 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position hall horizontal
1051 )))
1052 |(((
1053 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/hall y
1054 )))|(((
1055 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position hall vertical
1056 )))
1057 |(((
1058 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/tunnel x
1059 )))|(((
1060 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position tunnel horizontal
1061 )))
1062 |(((
1063 /FL2/Photon Diagnostic/GMD/Beam position/Pulse resolved/tunnel y
1064 )))|(((
1065 /FL2/Photon Diagnostic/GMD/Pulse resolved beam position/position tunnel vertical
1066 )))
1067
1068 \\
1069
1070 [[Contents>>doc:||anchor="Contents"]]
1071
1072 \\
1073
1074 == Example code showing how to access HDF5 files ==
1075
1076 \\
1077
1078 === Samples how to read HDF5 with Matlab ===
1079
1080 The examples apply to HDF files with HDF tree version before vers. 0.3.0.
1081
1082 (% 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
1083
1084 (% 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
1085
1086 (% style="color: rgb(0,128,0);" %)% read a Number per 10 Hz pulse train:
1087
1088 (% class="code" %)
1089 (((
1090 FEL_Wavelength_energy_server=h5read(hdf5file,'/Photon Diagnostic/Wavelength/Calculated by energy/wavelength' );
1091 )))
1092
1093 (% 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');
1094
1095 (% 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)
1096
1097 \\
1098
1099 (% class="code" %)
1100 (((
1101 Start_event= 500 ; % define the first 10 Hz event
1102 Number_of_events = 20; % how many 10 Hz events to load
1103 )))
1104
1105 (% style="color: rgb(0,128,0);" %)% read only part of the data:
1106
1107 (% class="code" %)
1108 (((
1109 Gotthard_data=h5read(hdf5file,'/Experiment/Gotthard1/BL.0',[2 650 Start_event],[50 85 Number_of_events]);
1110 )))
1111
1112 (% 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 ]
1113
1114 (% class="code" %)
1115 (((
1116 VLS_Spectrum=h5read(hdf5file,'/Photon Diagnostic/Wavelength/VLS online spectrometer/PCO.ROI.X',[400 Start_event],[200 Number_of_events] );
1117
1118 )))
1119
1120 (% 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 ]
1121
1122 (% style="color: rgb(0,128,0);" %)%GMD data
1123
1124 (% class="code" %)
1125 (((
1126 GMD_Spectrum=h5read(hdf5file,'/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA',[1 Start_event],[40 Number_of_events] );
1127 )))
1128
1129 [[Contents>>doc:||anchor="Contents"]]
1130
1131 === How to read HDF5 with Python via FLASHH5 ===
1132
1133 With [[FlashH5>>doc:FLASHUSER.FLASHH5 for easier access of FLASH's HDF5 files]] we provide h5py based examples to access and evaluate FLASH's HDF5 files.
1134
1135 \\
1136
1137 == HDF5 and DOOCS ==
1138
1139 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
1140
1141 [[Contents>>doc:||anchor="Contents"]]