Changes for page The FLASH HDF5 structure

Last modified by sndueste on 2025/02/06 10:55
From version 38.1
edited by sndueste
on 2021/02/09 10:51
Change comment: There is no comment for this version
To version 39.1
edited by sndueste
on 2021/02/09 11:53
Change comment: There is no comment for this version

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Content
... ... @@ -151,12 +151,14 @@
151 151  
152 152  \\
153 153  
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) ====
154 +==== Photon Diagnostics SASE ([[GMD>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/gmd_intensity_and_position/index_eng.html||shape="rect"]]) ====
155 155  
156 +\\
157 +
158 +(% style="color: rgb(0,0,0);" %)**Discontinued GMD data recording / evaluation  (VME + PhotonFlux ML server)**
159 +
156 156  {{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}}
161 +//always saved (PBD)//\\
160 160  
161 161  (% style="color: rgb(0,0,0);" %)DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT04/VAL{{/code}} (%%)
162 162  (% style="color: rgb(0,0,0);" %)DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENPULSEIC{{/code}}(%%)
... ... @@ -166,9 +166,6 @@
166 166  {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
167 167  //always saved (PBD)//
168 168  
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 -
172 172  DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT34/VAL{{/code}}
173 173  DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENERGYPULSE.USER{{/code}}
174 174  desc :Energy per pulse Tunnel (from e-) - the values are set to "0" if there was no SASE beam in the FEL
... ... @@ -184,9 +184,6 @@
184 184  {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy BDA{{/code}}
185 185  //always saved (PBD)//
186 186  
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 -
190 190  DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT05/VAL{{/code}}
191 191  DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENPULSEIC{{/code}}
192 192  desc : calibrated average SASE Energy/pulse measured in the BDA (in the experimental hall) after the attenuator (ion current)
... ... @@ -195,8 +195,6 @@
195 195  {{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA{{/code}}
196 196  //always saved (PBD)//
197 197  
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}}(%%)
200 200  DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT35/VAL{{/code}}
201 201  DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENERGYPULSE.USER{{/code}}
202 202  desc :Energy per pulse BDA (from e-) - the values are set to "0" if there was no SASE beam in the FEL
... ... @@ -211,6 +211,55 @@
211 211  
212 212  \\
213 213  
208 +(% style="color: rgb(0,0,0);" %)**NEW (2021) GMD data recording / evaluation  (MTCA, analog to FLASH2 and XFEL)**
209 +
210 +{{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
211 +//always saved (PBD)//
212 +(% style="color: rgb(0,0,0);" %)DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL1.TUNNEL/PHOTONFLUX.UJ{{/code}} (%%)
213 +(% style="color: rgb(0,0,0);" %)DAQ channel: {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL1.TUNNEL/PHOTONFLUX.UJ{{/code}}
214 +
215 +desc : calibrated average SASE Energy/pulse measured in the TUNNEL upstream the gas attenuator
216 +units : microJ
217 +
218 +\\
219 +
220 +{{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
221 +//always saved (PBD)//
222 +
223 +(% style="color: rgb(0,0,0);" %)DOOCS prop : 
224 +{{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL1.TUNNEL/INTENSITY.TD{{/code}}DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL1.TUNNEL/INTENSITY.TD{{/code}}
225 +
226 +desc : Energy per pulse measured in the Tunnel.  In addition measurement errors and beam position are included for EACH pulse in the pulse train  !! (see below)
227 +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]]**
228 +
229 +{{info title="GMD pulse resolved data structure"}}
230 +For every pulse in the pulse train the information is saved:
231 +
232 +
233 +1. **Intensity per pulse** (a.u. (more or less µJ ))
234 +1. Intensity per pulse (auxillary GMD) - not used
235 +1. Position horizontal (mm, for a single pulse the position information may be very noisy  - talk to your local contact)
236 +1. Position vertical (mm, for a single pulse the position information may be very noisy  - talk to your local contact)
237 +1. **Intensity per pulse sigma** (a.u. (more or less µJ ), (% style="color: rgb(0,0,0);" %)This parameter gives an indication of the error of the measurement of the pulse energy. This takes signal to noise,  detector resolution, uncertainties in crossection etc into account. (it is NOT the measurement of the statistical fluctuation of the SASE pulses)(%%))
238 +1. Position horizontal sigma  (mm, indicates the error (RMS, sigma) of the measurement according to known uncertainties and signal to noise)
239 +1. Position vertical sigma  (mm, indicates the error (RMS, sigma) of the measurement according to known uncertainties and signal to noise)
240 +1. Combined warning and error flags
241 +
242 +The pulse energy and the error are plotted for the first bunch of the pulse trains saved in this 
243 +file
244 +
245 +
246 +[[image:attach:image2021-2-9_10-51-6.png||height="250"]]
247 +
248 +\\
249 +{{/info}}
250 +
251 +All values for the GMD are also available for the** BDA GMD **which is located in the experimental hall down stream the gas attenuator. If the attenuator is on the ratio between BDA and Tunnel signal shows the attenuation. **BUT NOTE** that the filter units  are downstream the GMD. So if filters  are used this influence is NOT measured by the GMD BDA !
252 +
253 +\\
254 +
255 +Besides  pulse energy the GMD also provides information about the beam position
256 +
214 214  {{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position BDA horizontal{{/code}}
215 215  //always saved (PBD)//
216 216  DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IX.POS{{/code}}
... ... @@ -239,6 +239,10 @@
239 239  desc :Beam position of the photon Beam determined by the GMD (TUNNEL, y=vertical)
240 240  units : mm
241 241  
285 +\\
286 +
287 +==== Spectrometer (FLASH1) ====
288 +
242 242  {{code language="none"}}/FL1/Photon Diagnostic/Wavelength/Tunnelspectrometer/wavelength{{/code}}
243 243  _always saved (when Spectrum is measured !!) (PBD) _
244 244  DOOCS prop : {{code language="none"}}TTF2.EXP/PHOTONWL.ML/WAVE_LENGTH/VAL.TD{{/code}}
... ... @@ -637,13 +637,14 @@
637 637  desc : Energy per pulse measured in the Tunnel  (in front of the gas attenuator and the apertures in the Hall) In addition measurement errors and beam position are included for EACH pulse in the pulse train  !! (see below)
638 638  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]]**
639 639  
687 +{{info title="GMD pulse resolved data structure"}}
640 640  For every pulse in the pulse train the information is saved:
641 641  
642 642  
643 643  1. **Intensity per pulse** (a.u. (more or less µJ ))
644 644  1. Intensity per pulse (auxillary GMD) - not used
645 -1. Position horizontal (mm, for a single pulse the position informytion may be very noisy  - talk to your local contact)
646 -1. Position vertical (mm, for a single pulse the position informytion may be very noisy  - talk to your local contact)
693 +1. Position horizontal (mm, for a single pulse the position information may be very noisy  - talk to your local contact)
694 +1. Position vertical (mm, for a single pulse the position information may be very noisy  - talk to your local contact)
647 647  1. **Intensity per pulse sigma** (a.u. (more or less µJ ), (% style="color: rgb(0,0,0);" %)This parameter gives an indication of the error of the measurement of the pulse energy. This takes signal to noise,  detector resolution, uncertainties in crossection etc into account. (it is NOT the measurement of the statistical fluctuation of the SASE pulses)(%%))
648 648  1. Position horizontal sigma  (mm, indicates the error (RMS, sigma) of the measurement according to known uncertainties and signal to noise)
649 649  1. Position vertical sigma  (mm, indicates the error (RMS, sigma) of the measurement according to known uncertainties and signal to noise)
... ... @@ -655,8 +655,10 @@
655 655  
656 656  [[image:attach:image2021-2-9_10-51-6.png||height="250"]]
657 657  
706 +\\
707 +{{/info}}
658 658  
659 -{{code language="none"}}{{/code}}
709 +\\
660 660  
661 661  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 !
662 662