General Meeting Summary 9/15/22

PARTICIPANTS: Aaron Brown, Alexandre Camsonne, Fernando Barbosa, Bogdan Wojtsekhowski, Charles Hyde, David Hamilton, Hamlet Mkrtchyan, Mahmoud Gomina, Rolf Ent, Vardan Tadevosyan, Vladimir Berdnikov, Tanja Horn, Carlos Munoz-Camacho, Brad Sawatzky, Marie Boer, Pramita Tiwari, Paulo Medeiros, Julie Roche, Oliver Jevons

NPS ASSEMBLY

• Shielding of NPS box (IJCLab-Orsay team)

• Box shielding plates need to be manufactured by Sept 26th - holes for screws IJCLab team can do themselves
• IJCLab-Orsay teams start arriving in week of September 19th and stay for about 3 weeks (third week plan to concentrate on cables)
• no obvious negatives for having the shielding around the box

• Noise issue: NPS divider - pick up noise (Fernando)

• focus is on uncontrolled sources
• two types of shielding: external (around mounting hardware for single assembly) and internal (under mounting hardware)
• shielding connection considered - PCB, assembly, both
• tested with oscilloscope and see decrease in observed EMI
• Next:

• test with fADC - what is already installed in NPS
• DAQ is working - can do testing with first columns of the fADCs
• light tightness test
• grounding test

• Cabling

• Hakob on site now
• Glasgow U. team can come to help around Thanksgiving (third week November)
• Call for more people to help with this important task

• Action items for noise issue:

• test with fADC - what is already installed in NPS
• light tightness test
• grounding test

DSG UPDATES

• Controls and monitoring screens

• Software for HV is ready to go

• DSG NPS documentation

• Access to HV and LV in 108 - instructions on wiki page

• Action items:

• add any remaining NPS documentation/instructions to wiki

DAQ NPS

• DAQ running and also have software for it - it's already on Github

• Ready for testing with first columns of the fADCs

NPS and LRP

• In discussion for Town Meeting (but not yet confirmed): Hall C Future talk - make two slides for it

• Two slides material

• Show how NPS looks like - crucial part of Hall C future science
• Point to the science program including neutron DVCS

• Submission content:

• Large collaboration constructed
• Science program importance (vibrant, 8 experiments, etc.)
• including prospects for positron beam

Action items:

• submit open mic
• make slides and ask for feedback

NEXT MEETING: THURSDAY OCTOBER 6TH AT 9:00AM ET