General Meeting Summary 2/22/17

STATUS OF DETECTORS AT JLAB, KPP RUNS

SP-11 tray is on hold until mid-March
one detail noted: PMT bases become loose, which may be due to ongoing work on other detectors nearby.
Action Item: design a restraint for PMT bases.

Temporary solution: cable ties.
A more permanent solution could be a metal frame like for SHMS calorimeter, but this requires some work and checking of clearance when sliding out the detector from the detector stack.

Aerogel detector software fixed - can clearly see the single photoelectron peak (SEP) now (Signal PMT1 left, Signal PMT2 right, Signal PMT6 right)

Action Item: finalize and test analysis software - need online diagnostic plots during run
Action Item: all aerogel detector responsible personnel should familiarize with aerogel analysis software

Discussion of last week's collaboration meeting and Greg's recent trip to SLAC
Plans further irradiation tests of the NLAK lens - previous tests have shown that material is not radiation resistant
There might be another option for a dosimeter for measuring the Xray dose rates - Greg will send the link

PIXEL DETECTORS (Rachel)

All components of the detectors are at CERN. BPIX currently gets all the cooling, so have to wait with further testing of the forward detectors
A problem with the DC converters for both detector systems was identified - basically see spikes in current draw and burn out fuses when turning them on. The new power-on sequence should address this problem.
some discussion about CMS/CERN computational resources in context of anticipated higher luminosity and larger data sets.

PBWO4 RELATED TOPICS - SKIPPED BECAUSE STUDENTS ARE IN MATH METHODS EXAM...

TCS PROJECTIONS (Vardan, Pawel)

Discussion about making rough projections with parameters: cross section, photon flux, average target polarization etc. - details of asymmetry can be addressed later with, e.g., PARTONS

NEXT MEETING: WED. 1 MARCH at 10:00AM (EST)

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