Difference between revisions of "Detector Working Group Meetings"

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Revision as of 11:53, 25 October 2017

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

Blue Jeans Connection Information

  1. Enter Meeting ID: 895800575
  2. Press #

Summer Preparation Work

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 B. Sawatzky, E. Pooser, C. Yero
Electronic Deadtime B. Sawatzky, E. Pooser, C. Yero
Coincidence trigger B. Sawatzky, E. Pooser, C. Yero
DAQ Stress Test B. Sawatzky, E. Pooser, C. Yero
Add FADC scalers to general scaler display S Wood
Add every 4 sec BCM scaler read S Wood, B. Sawatzky

Detector Statuses

Fall 2017/Spring 2018 Commissioning Run

HMS

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


SHMS

Detector System Calibrations Ready for Physics
Noble Gas Cherenkov Gain Calibration  ?
Efficiencies
Drift Chambers t0 Offsets Yes
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  ?


DAQ/Trigger

Readout Configuration Triggers Ready for Physics
HMS Single Arm SCIN = 3/4 Hodoscope Planes No
HGCER = Heavy Gas Cherenkov Sum w/ Threshold
AERO = Aerogel Sum w/ Threshold
PSh_Lo & PSh_Hi = Low & High Pre-Shower Sum w/ Thresholds
Sh_Lo = Low Shower Sum w/ Thresholds
EL-Lo = SCIN AND PSH_Lo (AND !HGCER ?)
EL-Hi = SCIN AND PSH_Hi
EL-REAL = EL_Lo OR EL_Hi
EL-CLEAN = EL_Lo AND EL_Hi
PION = SCIN (AND !HGCER ?)
EDTM = Electronic Dead Time Measurements
SHMS Single Arm SCIN = 3/4 Hodoscope Planes No
HGCER = Heavy Gas Cherenkov Sum w/ Threshold
NGCER = Noble Gas Cherenkov Sum w/ Threshold
AERO = Aerogel Sum w/ Threshold
PSh_Lo & PSh_Hi = Low & High Pre-Shower Sum w/ Thresholds
EL-Lo = SCIN AND PSH_Lo (AND !XCER ?)
EL-Hi = SCIN AND PSH_Hi
EL-REAL = EL_Lo OR EL_Hi
EL-CLEAN = EL_Lo AND EL_Hi
PION = SCIN (AND !XCER ?)
EDTM = Electronic Dead Time Measurements
HMS & SHMS Coincidence HSCIN = 3/4 HMS Hodoscope Planes No
PSCIN = 3/4 SHMS Hodoscope Planes
PEL-REAL?
EDTM = Electronic Dead Time Measurements
EDTM Systematic Dead Time Studies No
Load Test


Hall C Detectors and System Owners

Beam Line

Trigger & DAQ

HMS

SHMS

Detector Working Group Meetings in 2017