Changes for page The FLASH HDF5 structure

Last modified by sndueste on 2025/02/06 10:55
From version 57.1
edited by sndueste
on 2022/09/07 09:50
Change comment: There is no comment for this version
To version 60.1
edited by sndueste
on 2022/09/08 08:56
Change comment: There is no comment for this version

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... ... @@ -419,6 +419,7 @@
419 419  arrival time (BAM) =====
420 420  
421 421  {{info title="BAM information: updates 2022"}}
422 +* see: [[Info collection about the BAMs and how to use the BAM data>>url:https://confluence.desy.de/display/FLASHUSER/Info+collection+for+the+BAM||shape="rect"]]
422 422  * The data format of the BAM has been completely altered in the 2022 shutdown
423 423  * before 2022 BAMs were always saving the arrival time information for each 1µs bucked regardless if there were electrons in the accelerator or not. IN addition the arrival times for  FL1 and FL2 were saved in the same parameter ...
424 424  * THIS is now different. there are new parameters for pulses that go to FL1 and to FL2 (in detail: first time slot of the accelerator and second)
... ... @@ -443,41 +443,68 @@
443 443  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).
444 444  units: ps (bigger numbers indicate later arrivaltime of the electrons)
445 445  
447 +\\
448 +
446 446  {{code language="none"}}/FL1/Electron Diagnostic/BAM/1SFELC/electron bunch arrival time (low charge){{/code}}
447 447  //always saved (PBD)//
448 448  DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/1SFELC/LOW_CHARGE_ARRIVAL_TIME{{/code}}
449 449  DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/1SFELC.LOW_CHARGE_ARRIVAL_TIME{{/code}}
450 450  desc: Electron bunch arrival time measured with the BAM  before the undulator (pulse resolved data). This one was newly installed in 2020.
451 -units: ps (bigger numbers indicate later arrivaltime of the electrons)
454 +units: ps (bigger numbers indicate later arrival time of the electrons)
452 452  {{/expand}}
453 453  
457 +(% style="color: rgb(255,102,0);" %)DBC2/electron bunch arrival time{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
458 +//always saved (PBD)//
459 +DOOCS prop : FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIME.absolute.SA1
460 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIME.absolute.SA1 (%%)
461 +desc: Electron bunch arrival time measured with the BAM inside the accelerator (after bunch compressor 2) - It shows a very good correlation to the arrival time  of the XUV pulses in the experiment (see help).  The SA1 indicates the data is recorded for the first time slot at FLASh, typically used for FLASH1
462 +units: fs (bigger numbers (typically) indicate later arrival times of the electrons).
463 +
454 454  \\
455 455  
456 -{{code language="none"}}/FL1/Electron Diagnostic/BAM/4DBC3/electron bunch arrival time (low charge){{/code}}
466 +(% style="color: rgb(255,102,0);" %)DBC2/error{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
457 457  //always saved (PBD)//
458 -DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/4DBC3/LOW_CHARGE_ARRIVAL_TIME{{/code}}
459 -DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/4DBC3.LOW_CHARGE_ARRIVAL_TIME{{/code}}
460 -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).
461 -units: ps (bigger numbers indicate later arrivaltime of the electrons)
468 +DOOCS prop : FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIM(% style="color: rgb(0,0,0);" %)E.bamError(%%)
469 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIME.BAMERROR(%%)
470 +desc: If the value is 0 , the BAM is working well. If it is non-zero there is a problem !!
462 462  
463 -{{code language="none"}}/FL1/Electron Diagnostic/BAM/1SFELC/electron bunch arrival time (low charge){{/code}}
472 +\\
473 +
474 +(% style="color: rgb(255,102,0);" %)DBC2/error{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
464 464  //always saved (PBD)//
465 -DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/1SFELC/LOW_CHARGE_ARRIVAL_TIME{{/code}}
466 -DAQ channel: {{code language="none"}}FLASH.SDIAG/BAM.DAQ/1SFELC.LOW_CHARGE_ARRIVAL_TIME{{/code}}
467 -desc: Electron bunch arrival time measured with the BAM  before the undulator (pulse resolved data). This one was newly installed in 2020.
468 -units: ps (bigger numbers indicate later arrivaltime of the electrons)
476 +DOOCS prop : FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIM(% style="color: rgb(0,0,0);" %)E..bamStatus.//1//(%%)
477 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIME.BAMSTATUS(%%)
478 +desc: (% style="letter-spacing: 0.0px;" %) status bit: 0 - data is valid; 1 - beam present; 2 - calibration ongoing; 3 - feedback enabled; 4 - feedback acting;  mostly check for bit 0 == 1 is sufficient
469 469  
470 470  \\
471 471  
472 -{{info title="BAM hints"}}
473 -* besides the arrivaltime from FLASH1 there is also the FLASH2/3 electron arrival time saved.In case of doubt ask your local contact
474 -* [[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]]
475 -* [[LINK to detailed infos from MSK>>url:https://confluence.desy.de/display/SDiagPublic/BAM+Data+Structure||shape="rect"]]
476 -* a recent  [[talk about the working principle of the BAM>>attach:BAM-basics and outlook-2018_DESY-template_16-9Format.pdf]]
477 -{{/info}}
482 +(% style="color: rgb(23,43,77);" %)SFELC(% style="color: rgb(255,102,0);" %)/electron bunch arrival time{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
483 +//always saved (PBD)//
484 +DOOCS prop : FLASH.SDIAG/BAM/(% style="color: rgb(23,43,77);" %)FL1.SFELC(%%)/ARRIVAL_TIME.absolute.SA1
485 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/(% style="color: rgb(255, 102, 0); color: rgb(23, 43, 77)" %)FL1.SFELC(% style="color: rgb(255,102,0);" %)/ARRIVAL_TIME.absolute.SA1 (%%)
486 +desc: Electron bunch arrival time measured  with the BAM  before the undulator (pulse resolved data). This one was newly installed in 2020.  The SA1 indicates the data is recorded for the first time slot at FLASh, typically used for FLASH1
487 +units: fs (bigger numbers (typically) indicate later arrival times of the electrons).
478 478  
479 479  \\
480 480  
491 +(% style="color: rgb(23,43,77);" %)SFELC(% style="color: rgb(255,102,0);" %)/error{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
492 +//always saved (PBD)//
493 +DOOCS prop : FLASH.SDIAG/BAM/(% style="color: rgb(23,43,77);" %)FL1.SFELC(%%)/ARRIVAL_TIM(% style="color: rgb(0,0,0);" %)E.bamError(%%)
494 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/(% style="color: rgb(255, 102, 0); color: rgb(23, 43, 77)" %)FL1.SFELC(% style="color: rgb(255,102,0);" %)/ARRIVAL_TIME.BAMERROR(%%)
495 +desc: If the value is 0 , the BAM is working well. If it is non-zero there is a problem !!
496 +
497 +\\
498 +
499 +(% style="color: rgb(23,43,77);" %)SFELC(% style="color: rgb(255,102,0);" %)/error{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
500 +//always saved (PBD)//
501 +DOOCS prop : FLASH.SDIAG/BAM/(% style="color: rgb(23,43,77);" %)FL1.SFELC(%%)/ARRIVAL_TIM(% style="color: rgb(0,0,0);" %)E..bamStatus.//1//(%%)
502 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/(% style="color: rgb(255, 102, 0); color: rgb(23, 43, 77)" %)FL1.SFELC(% style="color: rgb(255,102,0);" %)/ARRIVAL_TIME.BAMSTATUS(%%)
503 +desc: status bit: 0 - data is valid; 1 - beam present; 2 - calibration ongoing; 3 - feedback enabled; 4 - feedback acting;  mostly check for bit 0 == 1 is sufficient
504 +
505 +\\
506 +
507 +\\
508 +
481 481  ===== electron beam profile =====
482 482  
483 483  {{code language="none"}}/FL1/Electron Diagnostic/Electron bunch profile/TDS profile{{/code}}
... ... @@ -931,8 +931,27 @@
931 931  The gap values are saved for all 12 undulators (Nr 3 to 14). Undulator 14 is the one closest to the experimental hall.
932 932  
933 933  =====
934 -arrival time =====
962 +arrival time (BAM) =====
935 935  
964 +{{info title="BAM information: updates 2022"}}
965 +* see: [[Info collection about the BAMs and how to use the BAM data>>url:https://confluence.desy.de/display/FLASHUSER/Info+collection+for+the+BAM||shape="rect"]]
966 +* The data format of the BAM has been completely altered in the 2022 shutdown
967 +* before 2022 BAMs were always saving the arrival time information for each 1µs bucked regardless if there were electrons in the accelerator or not. I addition the arrival times for  FL1 and FL2 were saved in the same parameter ...
968 +* THIS is now different. There are new parameters for pulses that go to FL1 and to FL2 (in detail: first time slot of the accelerator and second)
969 +* There has been also a renaming  (and relocation) of the BAMs.
970 +** acc:  4DBC3 → FL0.DBC2
971 +** FL1: 1SFELC →  FL1.SFELC
972 +** FL2: 8FL2XTDS → (% style="color: rgb(23,43,77);" %)FL2.SEED5
973 +* for more Info: [[LINK to detailed infos from MSK>>url:https://confluence.desy.de/display/SDiagPublic/BAM+Data+Structure||shape="rect"]]
974 +* [[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]]
975 +* a recent  [[talk about the working principle of the BAM>>attach:BAM-basics and outlook-2018_DESY-template_16-9Format.pdf]]
976 +{{/info}}
977 +
978 +\\
979 +
980 +{{expand title="Discontinued BAM format (used until end 2021)"}}
981 +(% style="color: rgb(0,0,0);" %)**Discontinued BAM data recording **
982 +
936 936  {{code language="none"}}/FL2/Electron Diagnostic/BAM/8FL2XTDS/electron bunch arrival time (low charge){{/code}}
937 937  //always saved (PBD2)//
938 938  DOOCS prop : {{code language="none"}}FLASH.SDIAG/BAM/8FL2XTDS/LOW_CHARGE_ARRIVAL_TIME{{/code}}
... ... @@ -957,8 +957,60 @@
957 957  * [[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"]]
958 958  * a recent  [[talk about the working principle of the BAM>>attach:BAM-basics and outlook-2018_DESY-template_16-9Format.pdf]]
959 959  {{/info}}
1007 +{{/expand}}
960 960  
1009 +(% style="color: rgb(255,102,0);" %)DBC2/electron bunch arrival time{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
1010 +//always saved (PBD)//
1011 +DOOCS prop : FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIME.absolute.SA2
1012 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIME.absolute.SA2(%%)
1013 +desc: Electron bunch arrival time measured with the BAM inside the accelerator (after bunch compressor 2) - It shows a very good correlation to the arrival time  of the XUV pulses in the experiment (see help).  The SA2 indicates the data is recorded for the second time slot at FLASH, typically used for FLASH2
1014 +units: fs (bigger numbers (typically) indicate later arrival times of the electrons).
961 961  
1016 +\\
1017 +
1018 +(% style="color: rgb(255,102,0);" %)DBC2/error{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
1019 +//always saved (PBD)//
1020 +DOOCS prop : FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIM(% style="color: rgb(0,0,0);" %)E.bamError(%%)
1021 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIME.BAMERROR(%%)
1022 +desc: If the value is 0 , the BAM is working well. If it is non-zero there is a problem !!
1023 +
1024 +\\
1025 +
1026 +(% style="color: rgb(255,102,0);" %)DBC2/error{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
1027 +//always saved (PBD)//
1028 +DOOCS prop : FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIM(% style="color: rgb(0,0,0);" %)E..bamStatus.//2//(%%)
1029 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/FL0.DBC2/ARRIVAL_TIME.BAMSTATUS(%%)
1030 +desc: status bit: 0 - data is valid; 1 - beam present; 2 - calibration ongoing; 3 - feedback enabled; 4 - feedback acting;  mostly check for bit 0 == 1 is sufficient
1031 +
1032 +\\
1033 +
1034 +(% style="color: rgb(23,43,77);" %)SEED5(% style="color: rgb(255,102,0);" %)/electron bunch arrival time{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
1035 +//always saved (PBD)//
1036 +DOOCS prop : FLASH.SDIAG/BAM/(% style="color: rgb(23,43,77);" %)FL2.SEED5(%%)/ARRIVAL_TIME.absolute.SA2
1037 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/(% style="color: rgb(255, 102, 0); color: rgb(23, 43, 77)" %)FL2.SEED5(% style="color: rgb(255,102,0);" %)/ARRIVAL_TIME.absolute.SA2(%%)
1038 +desc: Electron bunch arrival time measured  with the BAM  before the undulator (pulse resolved data). This one was newly installed in 2020.  The SA2 indicates the data is recorded for the first time slot at FLASH, typically used for FLASH2
1039 +units: fs (bigger numbers (typically) indicate later arrival times of the electrons).
1040 +
1041 +\\
1042 +
1043 +(% style="color: rgb(23,43,77);" %)SEED5(% style="color: rgb(255,102,0);" %)/error{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
1044 +//always saved (PBD)//
1045 +DOOCS prop : FLASH.SDIAG/BAM/(% style="color: rgb(23,43,77);" %)FL2.SEED5(%%)/ARRIVAL_TIM(% style="color: rgb(0,0,0);" %)E.bamError(%%)
1046 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/(% style="color: rgb(255, 102, 0); color: rgb(23, 43, 77)" %)FL2.SEED5(% style="color: rgb(255,102,0);" %)/ARRIVAL_TIME.BAMERROR(%%)
1047 +desc: If the value is 0 , the BAM is working well. If it is non-zero there is a problem !!
1048 +
1049 +\\
1050 +
1051 +(% style="color: rgb(23,43,77);" %)SEED5(% style="color: rgb(255,102,0);" %)/error{{code language="none"}}/FL1/Electron Diagnostic/BAM/{{/code}}(%%)
1052 +//always saved (PBD)//
1053 +DOOCS prop : FLASH.SDIAG/BAM/(% style="color: rgb(23,43,77);" %)FL2.SEED5(%%)/ARRIVAL_TIM(% style="color: rgb(0,0,0);" %)E..bamStatus.//2//(%%)
1054 +DAQ channel: (% style="color: rgb(255,102,0);" %)FLASH.SDIAG/BAM/(% style="color: rgb(255, 102, 0); color: rgb(23, 43, 77)" %)FL2.SEED5(% style="color: rgb(255,102,0);" %)/ARRIVAL_TIME.BAMSTATUS(%%)
1055 +desc: status bit: 0 - data is valid; 1 - beam present; 2 - calibration ongoing; 3 - feedback enabled; 4 - feedback acting;  mostly check for bit 0 == 1 is sufficient
1056 +
1057 +\\
1058 +
1059 +\\
1060 +
962 962  [[Contents>>doc:||anchor="Contents"]]
963 963  
964 964  \\