Changes for page The FLASH HDF5 structure

Last modified by sndueste on 2025/02/06 10:55

From 8.1 to 7.1 From 14.1 to 13.1

From version 13.1

edited by sndueste
on 2019/09/17 16:58

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To version 8.1

edited by sndueste
on 2019/09/16 11:56

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@@ -1,8 +1,25 @@
  == Contents ==
++\\
++* [[General information about HDF5>>doc:||anchor="General information about HDF5"]]
++* [[FLASH HDF5 structure>>doc:||anchor="FLASH HDF5 structure"]]
++* [[Most popular FLASH parameters and their names in HDF5>>doc:||anchor="Most popular FLASH parameters and their names in HDF5"]]
++** [[FLASH1>>doc:||anchor="FLASH1"]]
++*** [[Beamline info (FLASH1)>>doc:||anchor="Beamline info (FLASH1)"]]
++*** [[Photon Diagnostics SASE / Spectrometer (FLASH1)>>doc:||anchor="Photon Diagnostics SASE / Spectrometer (FLASH1)"]]
++*** [[Electron Beam properties (FLASH1)>>doc:||anchor="Electron Beam properties (FLASH1)"]]
++*** [[Timing information, rep rate etc.(FLASH1)>>doc:||anchor="Timing information, rep rate etc.(FLASH1)"]]
++*** [[Pump Probe Laser (FLASH1)>>doc:||anchor="Pump Probe Laser (FLASH1)"]]
++*** [[User Data (FLASH1)>>doc:||anchor="User Data (FLASH1)"]]
++** [[FLASH2>>doc:||anchor="FLASH2"]]
++** [[HDF5 structure revisions>>doc:||anchor="HDF5 structure revisions"]]
++* [[Example code showing how to access HDF5 files>>doc:||anchor="Example code showing how to access HDF5 files"]]
++** [[Samples how to read HDF5 with Matlab>>doc:||anchor="Samples how to read HDF5 with Matlab"]]
++** [[How to read HDF5 with Python via FLASHH5>>doc:||anchor="How to read HDF5 with Python via FLASHH5"]]
++* [[HDF5 and DOOCS>>doc:||anchor="HDF5 and DOOCS"]]
--{{toc/}}
++\\
  \\
@@ -123,7 +123,7 @@
  \\
--==== 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) ====
++==== Photon Diagnostics SASE / Spectrometer (FLASH1) ====
  {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
  //always saved (PBD)//
@@ -547,13 +547,15 @@
  \\
--==== Photon Diagnostics SASE ([[XGMD>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/gmd_intensity_and_position/index_eng.html||shape="rect"]] - FLASH2) ====
++\\
++==== Photon Diagnostics SASE (XGMD) ====
++
  {{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
  //always saved (PBD2)//
--DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
--DAQ channel:{{code language="none"}} FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
--desc : calibrated average ( ~~ 20 sec averaging time ) SASE Energy/pulse measured in the TUNNEL before the attenuator (ion current)
++DOOCS prop : FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ
++DAQ channel: FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ
++desc : calibrated average SASE Energy/pulse measured in the TUNNEL before the attenuator (ion current)
  units : microJ
  \\
@@ -560,12 +560,12 @@
  (% style="color: rgb(255,204,0);" %)average Sigma    to be included in
--(% style="color: rgb(193,199,208);" %){{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel uncertainty{{/code}} (%%)
--(% style="color: rgb(193,199,208);" %)//always saved (PBD2)// (%%)
--(% style="color: rgb(193,199,208);" %)DOOCS prop : FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA (%%)
--(% style="color: rgb(193,199,208);" %)DAQ channel: FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA (%%)
--(% 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)(%%)
--(% style="color: rgb(193,199,208);" %)units : microJ
++{{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel uncertainty{{/code}}
++//always saved (PBD2)//
++DOOCS prop : FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA
++DAQ channel: FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA
++desc :  (ion current)
++units : microJ
  \\
@@ -572,10 +572,10 @@
  \\
  {{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
--//always saved (PBD2)//
--DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
--DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
--desc : Energy per pulse measured in the Tunnel  (in fromt of the gas attenuator and the apertures in the Hall)
++//always saved (PBD)//
++DOOCS prop : FLASH.FEL/XGM.INTENSITY/FL2.HALL/INTENSITY.TD
++DAQ channel: FLASH.FEL/XGM.INTENSITY/FL2.HALL/INTENSITY.TD
++desc :Energy per pulse Tunnel (from e-) - the values are set to "0" if there was no SASE beam in the FEL
  units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision) [[see here for help>>doc:FLASH.Calibrating the pulse resolved (electron) data from GMD]]
  \\
@@ -582,259 +582,68 @@
  \\
--{{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel uncertainty (sigma){{/code}}
--//always saved (PBD2)//
--DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.SIGMA.TD{{/code}}
--DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL:4{{/code}}
--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)(%%)
--units : a.u. (more or less µJ - related to the value of the pulse energy )
++{{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel (raw){{/code}}
++//always saved (PBD)//
++DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT14/VAL{{/code}}
++DAQ channel: {{code language="none"}}PBD.PHFLUX/TUNNEL.ENERGYPULSE.FF{{/code}}
++desc :Energy per pulse Tunnel (from e-) - uncorrected values. There are also values saved if there was no beam ... just background noise
++units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision) [[see here for help>>doc:FLASH.Calibrating the pulse resolved (electron) data from GMD]]
--
--{{code language="none"}}{{/code}}
--
--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 !
--
--\\
--
--Besides  pulse energy the GMD also provides information about the beam position
--
--\\
--
--{{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel horizontal{{/code}}
--//always saved (PBD2)//
--DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
--DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
--desc : the Average ( ~~ 20 sec averaging time ) Beam position of the photon Beam determined by the [[GMD>>doc:FLASH.Gas Monitor Detector]] (tunnel, x=horizontal)
--units : mm
--
--\\
--
--{{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel vertical{{/code}}
--//always saved (PBD2)//
--DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
--DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
--desc : the Average ( ~~ 20 sec averaging time ) Beam position of the photon Beam determined by the [[GMD>>doc:FLASH.Gas Monitor Detector]] (tunnel, x=horizontal)
--units : mm
--
--\\
--
--\\
--
--
--//always saved (PBD2)//
--\\\\{{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
--{{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}}
--
--{{code language="none"}}(x=horizontal, y = vertial){{/code}}
--
--again the same parameter set is available for the **HALL GMD**
--
--\\
--
--\\
--
--==== Photon Diagnostics OPIS[[ >>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]](FLASH2) ====
--
--for more info see: [[ OPIS>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/opis_spectrometer/index_eng.html||shape="rect"]]
--
--(The OPIS hall is not installed yet ...)
--
--\\
--
--{{code language="none"}}/FL2/Photon Diagnostic/Wavelength/OPIS tunnel/Processed/mean photon energy{{/code}}
--// saved opon request (PBD2)//
--DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL042{{/code}}
--DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL042{{/code}}
--desc : mean photon energy ( ~~ 1 sec averaging time ) measured in the TUNNEL for a specific bunch out of the bunch train (via photoelectron spectroscopy)
--units : eV
--
--\\
--
--{{code language="none"}}/FL2/Photon Diagnostic/Wavelength/OPIS tunnel/Processed/mean wavelength{{/code}}
--// saved opon request (PBD2)//
--DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL040{{/code}}
--DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL040{{/code}}
--desc : meanwavelength ( ~~ 1 sec averaging time ) measured in the TUNNEL for a specific bunch out of the bunch train (via photoelectron spectroscopy)
--units : nm
--
--\\
--
--{{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}}
--// saved opon request (PBD2)//
--DOOCS prop : {{code language="none"}}FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL060{{/code}}
--DAQ channel:{{code language="none"}} FLASH.UTIL/STORE/FL2.TUNNEL.OPIS/VAL060{{/code}}
--desc : The bunch number of the bunch used for the wavelength calculation
--units :
--
--\\
--
--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"]])
--
--\\
--
--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 ...
--
--\\
--
--\\
--
--\\
--
--==== Electron Beam properties (FLASH2) ====
--
--===== bunch charge =====
--
--{{code language="none"}}/FL2/Electron Diagnostic/Bunch charge/after undulator{{/code}}
++{{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy BDA{{/code}}
  //always saved (PBD)//
--DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
--DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
--desc: electron bunch charge (FLASH2)
--units: nC
++DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT05/VAL{{/code}}
++DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENPULSEIC{{/code}}
++desc : calibrated average SASE Energy/pulse measured in the BDA (in the experimental hall) after the attenuator (ion current)
++units : microJ
--\\
--
--\\
--
--(% class="wrapped" %)
--|(((
--FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP
--)))|(((
--/FL2/Electron Diagnostic/Undulator setting/SASE14 gap
--)))
--|(((
--TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH
--)))|(((
--/FL2/Electron Diagnostic/Undulator setting/set wavelength
--)))
--
--=====
--arrival time =====
--
--{{code language="none"}}/FL1/Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
++{{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA{{/code}}
  //always saved (PBD)//
--DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/4DBC3/LOW_CHARGE_ARRIVAL_TIME{{/code}}
--DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/4DBC3.LOW_CHARGE_ARRIVAL_TIME{{/code}}
--desc: Electron bunch arrival time measured with the BAM (more or less) before the undulator (pulse resolved data)
--units: ps (bigger numbers indicate later arrivaltime of the electrons)
--note: besides the arivaltime from FLASH1 there is also the FLASH2/3 electron arrival time saved. [[LINK to detailled 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"]] and to a recent  [[talk about the working principle of the BAM>>url:https://confluence.desy.de/download/attachments/134216957/BAM-basics_and_outlook-2018_DESY-template_16-9Format.pdf?version=1&modificationDate=1565162143328&api=v2||shape="rect"]]
++DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT35/VAL{{/code}}
++DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENERGYPULSE.USER{{/code}}
++desc :Energy per pulse BDA (from e-) - the values are set to "0" if there was no SASE beam in the FEL
++units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision) [[see here for help>>doc:FLASH.Calibrating the pulse resolved (electron) data from GMD]]
--\\
--
--\\
--
--\\
--
--===== electron bunch energy =====
--
--{{code language="none"}}/FL1/Electron Diagnostic/Electron energy/average electron energy{{/code}}
--_always saved (PBD)
--DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_INTRA_MEAN/VAL{{/code}}
--DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_MEAN{{/code}}
--desc: electron bunch energy (average over the bunch train)
--units: (% class="twikiNewLink" %)MeV(%%)
--\\
--
--{{code language="none"}}/FL1/Electron Diagnostic/Electron energy/pulse resolved energy{{/code}}
--_always saved (PBD)
--DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_SPECT/VAL.TD{{/code}}
--DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_SPECT{{/code}}
--desc: electron bunch energy bunch resolved
--units: (% class="twikiNewLink" %)MeV
--
--\\
--
--{{code language="none"}}/FL1/Electron Diagnostic/Electron energy/wavelength bunch train average{{/code}}
--_always saved (PBD)
--DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/LAMBDA_MEAN/VAL{{/code}}
--DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/LAMBDA_MEAN{{/code}}
--desc: Wavelength calculated by the electron bunch energy (average over the bunch train) (FLASH1)
--units: nm
--\\
--
--[[Contents>>doc:||anchor="Contents"]]
--
--\\
--
--==== Timing information, rep rate etc.  (FLASH1) ====
--
--===== bunch repetition rate =====
--
--{{code language="none"}}/FL1/Timing/repetition rate{{/code}}
++{{code language="none"}}/FL1/Photon Diagnostic/GMD/Pulse resolved energy/energy BDA (raw){{/code}}
  //always saved (PBD)//
--DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/REP_RATE_KHZ.1{{/code}}
--DAQ channel: {{code language="none"}}TTF2.UTIL/LASER.CONTROL/GUN/PULSE_FREQ{{/code}}
--desc: repetition rate of the bunches / pulses within the burst (FLASH1)
--units: kHz
--\\
++DOOCS prop : {{code language="none"}}TTF2.DAQ/PHFLUX/OUT15/VAL{{/code}}
++DAQ channel: {{code language="none"}}PBD.PHFLUX/BDA.ENERGYPULSE.FF{{/code}}
++desc :Energy per pulse BDA (from e-) - uncorrected values. There are also values saved if there was no beam ... just background noise
++units : a.u. (more or less µJ but need to be calibrated with the "Average energy" for good precision) [[see here for help>>doc:FLASH.Calibrating the pulse resolved (electron) data from GMD]]
--===== set number of pulses =====
--
--{{code language="none"}}/FL1/Timing/set number of bunches{{/code}}
++{{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position BDA horizontal{{/code}}
  //always saved (PBD)//
--DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/3GUN/NUMBEROFBUNCHES.FLASH1{{/code}}
--DAQ channel: {{code language="none"}}TTF2.UTIL/LASER.CONTROL/GUN/PULSE_NUM{{/code}}
--desc: Number of pulses set at the gun (FLASH1)
--units:
++DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IX.POS{{/code}}
++DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IX.POS{{/code}}
++desc :Beam position of the photon Beam determined by the [[GMD>>doc:FLASH.Gas Monitor Detector]] (BDA, x=horizontal)
++units : mm
--===== actual number of pulses =====
--
--{{code language="none"}}/FL1/Timing/actual number of bunches{{/code}}
++{{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position BDA vertical{{/code}}
  //always saved (PBD)//
--DOOCS prop : {{code language="none"}}FLASH.DIAG/TOROID.ML/12EXP/NUMBEROFBUNCHES.FLASH1{{/code}}
--DAQ channel: {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP{{/code}}
--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)
--units:
--\\
++DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IY.POS{{/code}}
++DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.BDA/IY.POS{{/code}}
++desc :Beam position of the photon Beam determined by the [[GMD>>doc:FLASH.Gas Monitor Detector]] (BDA, y=vertical)
++units : mm
--===== actual pulse pattern recorded after the undulator =====
--
--{{code language="none"}}/FL1/Timing/Bunch pattern/pattern after undulator{{/code}}
++{{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position tunnel horizontal{{/code}}
  //always saved (PBD)//
--DOOCS prop : {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP/CHARGE.TD{{/code}}
--DAQ channel: {{code language="none"}}TTF2.DIAG/PBD.TOROID.ML/12EXP{{/code}}
--desc: The bunch pattern as function of time in a burst recorded by toroide diagnostic BEHIND the undulator. (FLASH1)
--units:
--\\
++DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IX.POS{{/code}}
++DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IX.POS{{/code}}
++desc :Beam position of the photon Beam determined by the [[GMD>>doc:FLASH.Gas Monitor Detector]] (TUNNEL, x=horizontal)
++units : mm
--===== Train ID =====
--
--{{code language="none"}}/Timing/train ID{{/code}}
++{{code language="none"}}/FL1/Photon Diagnostic/GMD/Beam position/position tunnel vertical{{/code}}
  //always saved (PBD)//
--DOOCS prop : {{code language="none"}}none{{/code}}
--DAQ channel: {{code language="none"}}none{{/code}}
--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 !)
--units:
--\\
++DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IY.POS{{/code}}
++DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL1.TUNNEL/IY.POS{{/code}}
++desc :Beam position of the photon Beam determined by the [[GMD>>doc:FLASH.Gas Monitor Detector]] (TUNNEL, y=vertical)
++units : mm
--===== Train time =====
--
--{{code language="none"}}/Timing/train time{{/code}}
--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
--units: d h min s cs
  \\
--{{code language="none"}}/Timing/time stamp{{/code}}
--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
--second column: microseconds
--third column: Train ID of FLASH
  \\
--[[Contents>>doc:||anchor="Contents"]]
--
  \\
--\\
--
--\\
--
--\\
--
--\\
--
--\\
--
--\\
--
  (% class="wrapped" %)
  |=(((
  DAQ name

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