Difference between revisions of "XEM: Notable Events and Changes"
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=== October 10, 2022 === | === October 10, 2022 === | ||
* SHMS 2Y- scalers restored during the middle of SHMS run 17336 - those scalers were missing for all runs before this | * SHMS 2Y- scalers restored during the middle of SHMS run 17336 - those scalers were missing for all runs before this | ||
+ | * Noticed spurious signal in SHMS 2Y21- - it turned out to be RF signal plugged into FADC, and map fiule wasn't updated. Commented this out in the map file - does not impact data. Could impact (maybe?) data analyzed before map file change | ||
=== October 9, 2022=== | === October 9, 2022=== |
Revision as of 06:35, 11 October 2022
October 10, 2022
- SHMS 2Y- scalers restored during the middle of SHMS run 17336 - those scalers were missing for all runs before this
- Noticed spurious signal in SHMS 2Y21- - it turned out to be RF signal plugged into FADC, and map fiule wasn't updated. Commented this out in the map file - does not impact data. Could impact (maybe?) data analyzed before map file change
October 9, 2022
- SHMS PID thresholds set - just before SHMS run 17318:
- NGC: -12.7 mV
- PRLO: -35.4 mV
- PRHI: -44.2 mV
October 6, 2022
- SHMS PRLO and PRHI thresholds increased to -45.4 and -50.9 mV to get rid of huge "no beam rate."
- These thresholds were used for most of SHMS paddle study - affects runs starting with 17261
- Mark updated the trigger mapping for SHMS DAQ (see elog https://logbooks.jlab.org/entry/4051681)
- Would only have impacted data taken with elclean trigger - we had not taken any to this point, so not an issue