General Meeting Summary 7/17/15

Participants: C. Hyde, J. Zhang, R. Ent, A. Mkrtchyan, M. Carmignotto, I. Sapkota, D. Hamilton, P. Turonski, E. Kinney, TH, J. Roche, C. Keppel, M. Boer

Phone: V. Tadevosyan, H. Mkrtchyan, A. Camsonne

NPS TEMPERATURE

• Discussion about optimal choice of temperature. Requirement: resolution of ~3% at 300 MeV

• Temperature dependence is not linear

• Discussion of drawbacks of cooling, e.g., condensation

• Assuming ambient temperature is 25 C condensation has been observed in the HC Compton photon detector at 10 C

PMT bases

• Default choice is the resistive base designed by V. Popov and Hamlet
• Studies of relative benefits of C-W base ongoing at ODU

MAGNET DESIGN

• Finalize magnet studies including fringe fields (Bogdan)
• Discuss with Thia and Paul about path toward design drawings for this (and NPS frame)

READOUT

• Ongoing work to setup DAQ. Update report should be ready at the next meeting (Alex)

PAC43 RESULTS

• TCS LOI: theory motivation important. Need to quantify impact of the meausurement on global GPD extractions
• PAC was very interested in the idea of an intense photon beam - suggests to further develop this idea

FUNDING

• U. of Glasgow submitted a proposal for slow controls and additional magnet components needed for WACS experiments. Feedback is expected as early as August.

NEXT COLLABORATION MEETING:

• Discussion about timing: could be in November, December, or January. If in November good dates would be 19-20 November.
• Discussion about location

ITEMS FOR NEXT MEETING:

• Magnet studies and planning

• Follow-up on NPS temperature studies

• Readout report

• Next collaboration meeting

• Other...

NEXT MEETINGS: THUR, 30 JULY at 9:00 AM (EDT)