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
  
 
=== October 9, 2022===
 
=== October 9, 2022===
* SHMS PID thresholds set - just before SHMS run 17318:
+
# SHMS PID thresholds set - just before SHMS run 17318:
 
**NGC: -12.7 mV
 
**NGC: -12.7 mV
 
**PRLO: -35.4 mV
 
**PRLO: -35.4 mV
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=== October 6, 2022===
 
=== October 6, 2022===
* SHMS PRLO and PRHI thresholds increased to -45.4 and -50.9 mV to get rid of huge "no beam rate."
+
# 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
 
** 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)
+
# 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
 
** Would only have impacted data taken with elclean trigger - we had not taken any to this point, so not an issue

Revision as of 06:09, 11 October 2022

October 10, 2022

  1. SHMS 2Y- scalers restored during the middle of SHMS run 17336 - those scalers were missing for all runs before this

October 9, 2022

  1. SHMS PID thresholds set - just before SHMS run 17318:
    • NGC: -12.7 mV
    • PRLO: -35.4 mV
    • PRHI: -44.2 mV

October 6, 2022

  1. 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
  1. 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