Detector Working Group Meetings

General Information

The aim of the detector working group meetings is to assess the current status of the Hall C detector systems in preparation for the upcoming run periods

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Task	Person	Comment
HMS/SHMS angle/pointing surveys
HMS/SHMS collimator surveys	M Jones	Surveys done. Need to put info on wiki.
Install SHMS shielding around the Dipole openings	Hall C designers/engineers/techs	Designed and ordered.
Install SHMS electronic hut shadow shielding	Hall C designers/engineers/techs	Designed. Being built?
Install SHMS HB lead shielding	Hall C designers/engineers/techs	Designed. Ordered?
Replace Noble Gas Cherenkov with vacuum pipe	Hall C techs	Need to coordinate. Like access for temporary dipole NMR.
Change out SHMS chamber?	E Christy
Install GEM sieve	L. Kabir, E. Pooser, S. Wood	Installed in SHMS hut.
Replace SHMS quartz plane PMTs	S. Malace, K. Craycraft, A. Sun	Order placed. Setting up cosmic test stand.
BCM checkout	D. Mack, D. Bhetuwal
SHMS magnet cycling procedure	D. Mack and S. Murri (summer student)	Starting with Q1.
Trigger setup	E Pooser, B Sawatzky
Electronic deadtime	B Sawatzky	Need student
Coincidence trigger	E Pooser, B Sawatzky
DAQ stress test	B Sawatzky	Need student?
Add FADC scalers to general scaler display	S Wood
Add every 4 sec BCM scaler read	S Wood, B. Sawatzky

Detector System	Calibrations	Ready for Physics
Drift Chambers	t0 Offsets	No
	Drift Distance
	Alignment
Hodoscopes	Time-Walk Corrections	?
	Propagation Time Correction
	Attenuation Length Correction
Cherenkov	Gain Calibration	?
Shower/Pre-Shower	Gain Calibration	?

Detector System	Calibrations	Ready for Physics
Noble Gas Cherenkov	Gain Calibration	No
Drift Chambers	t0 Offsets	?
	Drift Distance
	Alignment
Hodoscopes	Time-Walk Corrections	?
	Propagation Time Correction
	Attenuation Length Correction
Heavy Gas Cherenkov	Gain Calibration	Efficiencies
Aerogel	Gain Calibration	?
Shower/Pre-Shower	Gain Calibration	?