Changes for page The FLASH HDF5 structure

Last modified by sndueste on 2025/02/06 10:55
From version 16.1
edited by sndueste
on 2019/09/18 09:29
Change comment: There is no comment for this version
To version 17.1
edited by sndueste
on 2019/09/18 09:52
Change comment: There is no comment for this version

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... ... @@ -736,7 +736,7 @@
736 736  //always saved (PBD2)//
737 737  DOOCS prop : {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/BUNCH_POSITION.2{{/code}}
738 738  DAQ channel: {{code language="none"}}FLASH.DIAG/TIMER/FLASHCPUTIME1.0/BUNCH_POSITION.2{{/code}}
739 -desc: The max 600 µs acceleration time of FLASH is devided between FLASH1 and FLASH2. FLASH1 is (up to now) first starting for historic reasons 700 µs. thus if e.g. the start time of FLASH2 ( property name see below) is 1200 it means that FLASH starts at column 500 (1200-700) ...
739 +desc: The max 600 µs acceleration time of FLASH is devided between FLASH1 and FLASH2. This 600 µs window starts with FLASH1 (up to now)  at a time"label" of 700 µs (for historic reasons). Thus the first bunch of FLASH 1 comes at "700" and the last possibel bunch comes at 1300 (700+600). After FLASH1 train is over ther is a about 70µs switching time with no bunches. Then comes the first FLASH2 bunch.  Thus if e.g. the start time of FLASH2 is 1200 it means that FLASH2 starts at column 500 (1200-700)  in the HDF5 files. (However for yet unknown reasons this may change by 2-3 colums ...)
740 740  units: µs
741 741  
742 742  ===== bunch repetition rate =====