SRC/CT Detector Calibration

Overview of subdetectors

• Old page: https://halldweb.jlab.org/wiki/index.php/SRC/CT_Calibrations

Detector	Calibrations	Hall D Expert	Helper/Monitoring
BCAL	Timing/z-position/gain ratios	Mark Dalton	Nathaly
BCAL	gains/non-linearities	Regina group [Karthik]	Nathaly
CDC	gains and dE/dx	Simon Taylor	GWU-Phoebe/Axel
CDC	Time-to-distance	Simon Taylor	GWU-Phoebe/Axel
FDC	Timing	Keigo Mizutani	Jackson Pybus
FCAL	gains/non-linearities/timing	Igal Jaegle	Carlos Ayerbe
PS/PSC	timing	Alex Somov/Olga Cortes	GWU-Phoebe/Axel
ST	timing	Mark Ito	Bo
ST	resolution	Mark Ito	Bo
TAGH	timing	Alex Somov	Bhesha Devkota
TAGM	timing	Alex Somov	Bo Yu
TOF	timing/gains	Beni Zihlmann	Jackson

Monitoring launches

Version	Date	Files per run	Compared with last version
01	Timing/z-position/gain ratios	Mark Dalton	Nathaly
02	gains/non-linearities	Regina group [Karthik]	Nathaly
03	gains and dE/dx	Simon Taylor	GWU-Phoebe/Axel
04	Time-to-distance	Simon Taylor	GWU-Phoebe/Axel
05	Timing	Keigo Mizutani	Jackson Pybus
06	gains/non-linearities/timing	Igal Jaegle	Carlos Ayerbe
07	07/27/2022	2	TBA

Data quality issues

• Some hardware or software issues can not be fixed by calibrations. Attention is needed during the data analysis
• CDC
• TAGH
• FDC

• CDC
  • Wire gains (per-channel)
  • Overall gain factors (can skip if online is good enough)
  • Final dE/dx calibrations
  • Time-to-distance
  • Plots 11/02: [1]
• FDC
  • Wire plane calibrations
  • Pedestals
  • "Automated" gain/energy non-linearities
  • Timing
• PS/PSC
  • PS timing
  • PSC timing offsets + timewalk

• TAGH
  • timing offsets + timewalk
• TAGM
  • timing offsets + timewalk
• TOF
  • timing offsets
  • timewalks
  • attenuation corrections
  • gain corrections
• Start Counter
  • timing
  • SC overview