Changes for page The FLASH HDF5 structure

Last modified by sndueste on 2025/02/06 10:55
From version 7.1
edited by sndueste
on 2019/09/16 11:40
Change comment: There is no comment for this version
To version 9.1
edited by sndueste
on 2019/09/17 16:31
Change comment: There is no comment for this version

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... ... @@ -130,10 +130,16 @@
130 130  DAQ channel: {{code language="none"}}TTF2.FEL/PGFILTERS/PGFILTERS/FW.MOTOR.POS{{/code}}
131 131  desc: Position of the PG filter wheel 3
132 132  units: degree
133 +
133 133  \\
134 134  
136 +
137 +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
138 +
135 135  [[Contents>>doc:||anchor="Contents"]]
136 136  
141 +\\
142 +
137 137  ==== Photon Diagnostics SASE / Spectrometer (FLASH1) ====
138 138  
139 139  {{code language="none"}}/FL1/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
... ... @@ -536,7 +536,7 @@
536 536  
537 537  
538 538  {{code language="none"}}/FL2/Beamlines/Filter wheel/position wheel 1{{/code}}
539 -//always saved (PBD)//
545 +//always saved (PBD2)//
540 540  DOOCS prop : {{code language="none"}}FLASH.FEL/FL20H.PH.MOTOR/MOTOR1.MOT3/FPOS{{/code}}
541 541  DAQ channel: FLASH.FEL/FL20H.PH.MOTOR/MOTOR1.MOT3/FPOS
542 542  desc: Position of the BL filter wheel 1 - to correlate with the filter material please look [[here>>doc:FLASH.Filter history (BL filterwheel 12)]]
... ... @@ -544,10 +544,14 @@
544 544  \\
545 545  
546 546  
547 -//always saved (PBD)//
553 +//always saved (PBD2)//
548 548  \\\\[[here>>doc:FLASH.Filter history (BL filterwheel 12)]]
549 549  {{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}}
550 550  
557 +\\
558 +
559 +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
560 +
551 551  [[Contents>>doc:||anchor="Contents"]]
552 552  
553 553  \\
... ... @@ -554,6 +554,116 @@
554 554  
555 555  \\
556 556  
567 +==== Photon Diagnostics SASE (XGMD) ====
568 +
569 +{{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel{{/code}}
570 +//always saved (PBD2)//
571 +DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
572 +DAQ channel:{{code language="none"}} FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ{{/code}}
573 +desc : calibrated average ( ~~ 20 sec averaging time ) SASE Energy/pulse measured in the TUNNEL before the attenuator (ion current)
574 +units : microJ
575 +
576 +\\
577 +
578 +(% style="color: rgb(255,204,0);" %)average Sigma    to be included in
579 +
580 +(% style="color: rgb(193,199,208);" %){{code language="none"}}/FL2/Photon Diagnostic/GMD/Average energy/energy tunnel uncertainty{{/code}} (%%)
581 +(% style="color: rgb(193,199,208);" %)//always saved (PBD2)// (%%)
582 +(% style="color: rgb(193,199,208);" %)DOOCS prop : FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA (%%)
583 +(% style="color: rgb(193,199,208);" %)DAQ channel: FLASH.FEL/XGM.PHOTONFLUX/FL2.TUNNEL/PHOTONFLUX.UJ.SIGMA (%%)
584 +(% 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)(%%)
585 +(% style="color: rgb(193,199,208);" %)units : microJ
586 +
587 +\\
588 +
589 +\\
590 +
591 +{{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel{{/code}}
592 +//always saved (PBD2)//
593 +DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
594 +DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.TD{{/code}}
595 +desc : Energy per pulse measured in the Tunnel  (in fromt of the gas attenuator and the apertures in the Hall)
596 +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]]
597 +
598 +\\
599 +
600 +\\
601 +
602 +{{code language="none"}}/FL2/Photon Diagnostic/GMD/Pulse resolved energy/energy tunnel uncertainty (sigma){{/code}}
603 +//always saved (PBD2)//
604 +DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL/INTENSITY.SIGMA.TD{{/code}}
605 +DAQ channel: {{code language="none"}}FLASH.FEL/XGM.INTENSITY/FL2.TUNNEL:4{{/code}}
606 +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)(%%)
607 +units : a.u. (more or less µJ - related to the value of the pulse energy )
608 +
609 +
610 +{{code language="none"}}{{/code}}
611 +
612 +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 !
613 +
614 +\\
615 +
616 +Besides  pulse energy the GMD also provides information about the beam position
617 +
618 +\\
619 +
620 +{{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel horizontal{{/code}}
621 +//always saved (PBD2)//
622 +DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
623 +DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IX.POS{{/code}}
624 +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)
625 +units : mm
626 +
627 +\\
628 +
629 +\\
630 +
631 +\\
632 +
633 +{{code language="none"}}/FL2/Photon Diagnostic/GMD/Average Beam position/position tunnel vertical{{/code}}
634 +//always saved (PBD2)//
635 +DOOCS prop : {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
636 +DAQ channel: {{code language="none"}}FLASH.FEL/XGM.POSMON/FL2.TUNNEL/IY.POS{{/code}}
637 +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)
638 +units : mm
639 +
640 +\\
641 +
642 +\\
643 +
644 +
645 +//always saved (PBD2)//
646 +\\\\{{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
647 +{{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}}
648 +
649 +{{code language="none"}}(x=horizontal, y = vertial){{/code}}
650 +
651 +again the same parameter set is available for the **HALL GMD**
652 +
653 +\\
654 +
655 +\\
656 +
657 +\\
658 +
659 +\\
660 +
661 +\\
662 +
663 +\\
664 +
665 +\\
666 +
667 +\\
668 +
669 +\\
670 +
671 +\\
672 +
673 +\\
674 +
675 +\\
676 +
557 557  (% class="wrapped" %)
558 558  |=(((
559 559  DAQ name