Changes for page The FLASH HDF5 structure

Last modified by sndueste on 2025/02/06 10:55
From version 12.1
edited by sndueste
on 2019/09/17 16:57
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To version 14.1
edited by sndueste
on 2019/09/17 17:52
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Summary

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Content
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1 1  == Contents ==
2 2  
3 -\\
4 4  
5 -* [[General information about HDF5>>doc:||anchor="General information about HDF5"]]
6 -* [[FLASH HDF5 structure>>doc:||anchor="FLASH HDF5 structure"]]
7 -* [[Most popular FLASH parameters and their names in HDF5>>doc:||anchor="Most popular FLASH parameters and their names in HDF5"]]
8 -** [[FLASH1>>doc:||anchor="FLASH1"]]
9 -*** [[Beamline info (FLASH1)>>doc:||anchor="Beamline info (FLASH1)"]]
10 -*** [[Photon Diagnostics SASE / Spectrometer (FLASH1)>>doc:||anchor="Photon Diagnostics SASE / Spectrometer (FLASH1)"]]
11 -*** [[Electron Beam properties (FLASH1)>>doc:||anchor="Electron Beam properties (FLASH1)"]]
12 -*** [[Timing information, rep rate etc.(FLASH1)>>doc:||anchor="Timing information, rep rate etc.(FLASH1)"]]
13 -*** [[Pump Probe Laser (FLASH1)>>doc:||anchor="Pump Probe Laser (FLASH1)"]]
14 -*** [[User Data (FLASH1)>>doc:||anchor="User Data (FLASH1)"]]
15 -** [[FLASH2>>doc:||anchor="FLASH2"]]
16 -** [[HDF5 structure revisions>>doc:||anchor="HDF5 structure revisions"]]
17 -* [[Example code showing how to access HDF5 files>>doc:||anchor="Example code showing how to access HDF5 files"]]
18 -** [[Samples how to read HDF5 with Matlab>>doc:||anchor="Samples how to read HDF5 with Matlab"]]
19 -** [[How to read HDF5 with Python via FLASHH5>>doc:||anchor="How to read HDF5 with Python via FLASHH5"]]
20 -* [[HDF5 and DOOCS>>doc:||anchor="HDF5 and DOOCS"]]
21 21  
22 -\\
5 +{{toc/}}
23 23  
24 24  \\
25 25  
... ... @@ -53,7 +53,7 @@
53 53  
54 54  \\
55 55  
56 -== Most popular FLASH parameters and their names in HDF5 ==
39 +== Most popular FLASH parameters and their names in HDF5, DOOCS and (raw) DAQ ==
57 57  
58 58  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"]].
59 59  The most common and often used ones are summarized below:
... ... @@ -635,9 +635,7 @@
635 635  
636 636  \\
637 637  
638 -\\
639 639  
640 -
641 641  //always saved (PBD2)//
642 642  \\\\{{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
643 643  {{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}}
... ... @@ -695,14 +695,12 @@
695 695  
696 696  \\
697 697  
698 -\\
699 -
700 700  ==== Electron Beam properties (FLASH2) ====
701 701  
702 702  ===== bunch charge =====
703 703  
704 704  {{code language="none"}}/FL2/Electron Diagnostic/Bunch charge/after undulator{{/code}}
705 -//always saved (PBD)//
684 +//always saved (PBD2)//
706 706  DOOCS prop : {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
707 707  DAQ channel: {{code language="none"}}FLASH.DIAG/PBD2.TOROID.ML/9FL2BURN/CHARGE.FLASH2{{/code}}
708 708  desc: electron bunch charge (FLASH2)
... ... @@ -710,61 +710,53 @@
710 710  
711 711  \\
712 712  
713 -\\
692 +===== undulator settings =====
714 714  
715 -|(((
716 -FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP
717 -)))|(((
718 -/FL2/Electron Diagnostic/Undulator setting/SASE14 gap
719 -)))
720 -|(((
721 -TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH
722 -)))|(((
723 -/FL2/Electron Diagnostic/Undulator setting/set wavelength
724 -)))
694 +{{code language="none"}}/FL2/Electron Diagnostic/Undulator setting/set wavelength{{/code}}
695 +//always saved (PBD2)//
696 +DOOCS prop : {{code language="none"}}TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH{{/code}}
697 +DAQ channel:  {{code language="none"}}TTF2.FEEDBACK/FL2.WAVELENGTHCONTROL/FLASH2/WAVELENGTH{{/code}}
698 +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 % ...
699 +units: nm
725 725  
701 +{{code language="none"}}/FL2/Electron Diagnostic/Undulator setting/SASE14 gap{{/code}}
702 +//always saved (PBD2)//
703 +DOOCS prop : {{code language="none"}}FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP{{/code}}
704 +DAQ channel:  {{code language="none"}}FLASH.UTIL/FL2.UND.MOTOR/FL2SASE14/GAP{{/code}}
705 +desc: Sgap value of the Undulators. this can be used to follow up how many undulators were closed and if there was a taper
706 +units: mm
707 +
708 +The gap values are saved for all 12 undulators (Nr 3 to 14)
709 +
726 726  =====
727 727  arrival time =====
728 728  
729 -{{code language="none"}}/FL1/Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
730 -//always saved (PBD)//
713 +**FL1**{{code language="none"}}//Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
714 +//always saved (PBD2)//
731 731  DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/4DBC3/LOW_CHARGE_ARRIVAL_TIME{{/code}}
732 732  DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/4DBC3.LOW_CHARGE_ARRIVAL_TIME{{/code}}
733 733  desc: Electron bunch arrival time measured with the BAM (more or less) before the undulator (pulse resolved data)
734 -units: ps (bigger numbers indicate later arrivaltime of the electrons)
735 -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"]]
718 +units: ps (bigger numbers indicate later arrivaltime of the electrons)
736 736  
720 +The BAM measures the arrivaltime of FLASH 1 and FLASH2 in the same data set (thus also sorted in at /FL1/ !). The first values are for FLASH1 bunches.
721 +
737 737  \\
738 738  
724 +first bunch of FLASH2 ... how to calculate ..
725 +
739 739  \\
740 740  
741 741  \\
742 742  
743 -===== electron bunch energy =====
730 +Docu:  [[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"]]
744 744  
745 -{{code language="none"}}/FL1/Electron Diagnostic/Electron energy/average electron energy{{/code}}
746 -_always saved (PBD)
747 -DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_INTRA_MEAN/VAL{{/code}}
748 -DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_MEAN{{/code}}
749 -desc: electron bunch energy (average over the bunch train)
750 -units: (% class="twikiNewLink" %)MeV(%%)
751 751  \\
752 752  
753 -{{code language="none"}}/FL1/Electron Diagnostic/Electron energy/pulse resolved energy{{/code}}
754 -_always saved (PBD)
755 -DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/E_SPECT/VAL.TD{{/code}}
756 -DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/E_SPECT{{/code}}
757 -desc: electron bunch energy bunch resolved
758 -units: (% class="twikiNewLink" %)MeV
734 +\\
759 759  
760 760  \\
761 761  
762 -{{code language="none"}}/FL1/Electron Diagnostic/Electron energy/wavelength bunch train average{{/code}}
763 -_always saved (PBD)
764 -DOOCS prop : {{code language="none"}}TTF2.DAQ/ENERGY.DOGLEG/LAMBDA_MEAN/VAL{{/code}}
765 -DAQ channel: {{code language="none"}}PBD.ENERGY.DOGLEG/LAMBDA_MEAN{{/code}}
766 -desc: Wavelength calculated by the electron bunch energy (average over the bunch train) (FLASH1)
767 -units: nm
738 +
768 768  \\
769 769  
770 770  [[Contents>>doc:||anchor="Contents"]]