General Meeting Summary 1/14/21

PARTICIPANTS: A. Brown, A. Camsonne, B. Wojtsekhowski, B. Sawatzky, C. Yero, C. Munoz-Camacho, C. Hyde, P. Medeiros, T. Horn, V. Tadevosyan, H. Mkrtchyan, R. Ent, V. Berdnikov, Camille Zindy, M. Boer, A. Asaturyan, J. Roche, D. Hamilton

FRAME (Carlos M.-C.)

• Frame shipped on 6 January - expect at JLab in week of January 19th

• not yet included: one spare PCB distribution board, soft-metal shielding box - working with Buckley Systems/NZ

• Documentation on cooling system posted on Wiki: https://wiki.jlab.org/cuawiki/index.php/Cooling_system

• Measuring radiation hardness of (10) Crytur crystals for comparison with SICCAS - should take photograph

• standard: 30 Gy
• could go to 1000 Gy and higher - try 1 MRad
• 3000 Ci Co-60 source (1 MeV photons)
• 1 week notice for facility

ASSEMBLY SPACE (Brad)

• Floorspace: boxes from Orsay will go to Test Lab High Bay area, also for assembly, SRF group moving out

• Setting up there, e.g. cables being moved there

• NPS fully assembled designed to be moved into the hall

FAST ELECTRONICS GROUP (Brad)

• LED driver boards - moving forward

• Chris will update at the collaboration meeting: firmware on VTP, F250, LED driver board etc.

• HV certification on connectors pending

• Update on anode current tests at the collaboration meeting - Action: check with Fernando

MECHANICAL DESIGN (Paulo)

• Cable layout/routing - ongoing

• isolation NPS from ground

• Detector rack/carriage waiting for delivery

• Support for magnet

CRYSTALS - ESR REFLECTOR SHAPING (Vladimir, Carlos Y., Josh)

• 10 tools were fabricated

• HCList approved for work with oven

• Test run with oven completed and 10 pre-shaped forms made

• ESR(Al composite) ~ 60um, rigid - needs to be preshaped

• Expect need 3-4 months to make ~1100-1200 pre-shapes

• At collaboration meeting will have discussion about how to place tape etc. when wrapping crystals

DETECTOR SUPPORT GROUP (Aaron)

• Fault chart development: crystal zone temperature/humidity - placement of additional sensors

• Hardware Interlock system development

• HV cable fabrication

• Condensation - injection of dry air into frame - discussion still ongoing how to do it, e.g. details about the system

• Action: Follow up with Jack Segal on dry air flow

SOFTWARE (Steve, Carlos Y.)

• Working from SHMS calorimeter code - creating larger calorimeter

• Plan to test with data samples from SHMS full waveform data (mode 10) from recent runs

• Trigger NPS

• trigger off HMS, clustering
• in some kinematics where rates are high option for coincidence with NPS
• full readout waveform - took some data with SHMS in recent runs

COLLABORATION MEETING AGENDA

• Add talks:

• Fast Electronics Group Update (Chris)
• What needed for WACS for ERR (Bogdan or David?)

• Under software: add discussion on critical path software, e.g., HCAna software modification

NEXT MEETING: NPS COLLABORATION MEETING 1-2 FEBRUARY 2021