Difference between revisions of "SoLID Ecal Weekly 20231005"

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(Pion rejection study)
(Pion rejection study)
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=Update on Radiation=
 
=Update on Radiation=
  
==Pion rejection study==
+
==Update on MIP study==
Mike's slides: [https://solid.jlab.org/wiki/images/8/81/PID_10_19_2023_v2.pdf PID_Update]
+
Ye's slides :
 +
*To clean up the MIP data sample:
 +
**Baseline shift correction
 +
**Gain shift correction (based on MIP height)
 +
**Fix 40ns as the integral TW in the decoder
 +
**SC_A & SC_D trigger efficiency is very low at ~3%, in order to get pion dominant samples, we need to apply Shower_{i}/ShowerSum>0.8+ 200 ADC<preshower<500 ADC cuts.
 +
**The conclusion is that the MIP peaks we looked at are indeed MIP peaks, there is no confusion about that.
  
 
==Discussions==
 
==Discussions==
 
*NPS: Some NPS PMT bases have begun failing due to a component which is not radiation hard
 
*NPS: Some NPS PMT bases have begun failing due to a component which is not radiation hard

Revision as of 14:01, 23 October 2023

Update on Radiation

Update on MIP study

Ye's slides :

  • To clean up the MIP data sample:
    • Baseline shift correction
    • Gain shift correction (based on MIP height)
    • Fix 40ns as the integral TW in the decoder
    • SC_A & SC_D trigger efficiency is very low at ~3%, in order to get pion dominant samples, we need to apply Shower_{i}/ShowerSum>0.8+ 200 ADC<preshower<500 ADC cuts.
    • The conclusion is that the MIP peaks we looked at are indeed MIP peaks, there is no confusion about that.

Discussions

  • NPS: Some NPS PMT bases have begun failing due to a component which is not radiation hard