General Meeting Summary 6/9/22

PARTICIPANTS: Paulo, Tanja, Vardan, Vladimir, Aaron, Hamlet, Brad, Rolf, Bogdan, Abishek, Pramita, Carlos, Alexandre, Julie, Hakob, Marie, David H

CRYTAL MODULE PREPARATION (Vladimir)

• Team of 7 people (Vladimir, Abishek, Hamlet, Josh, Petr, Vardan, Zheng) from 4 institutions (AANL, CUA, UIC, MSU)

• Completed the crystal module preparation during the month of May

• 1100 crystals
• team worked every day of the month for the entire day

• All but 100 crystals were prepared in RM 126 - 100 crystals prepared in NPS cleanroom

• Crystals were stored on shelves in the NPS assembly area

• all labeled from 1-1100

CRYSTAL STACKING (Carlos)

• Frame prepared

• 19 rows out of 36 were stacked, expect other half to be ready by Friday afternoon

• Next step: PMT assembly

• done column by column - all cables installed on each PMT

• Reason for not fully parallelizing PMT assembly with stacking: one crate that was sent from Orsay was delayed and only received this week - low voltage and some tools needed for assembly were in it

• Next week: start cabling - anticipate cabling complete for a few columns before Orsay group leaves

• Orsay team can return in September to finish cabling or for further tests (cooling, electronics, etc.)

• Action items:

• organize meeting on Thursday 6/16 at 9AM ET to discuss path forward, e.g., cabling after Orsay team leaves, possible detector checkout, etc.

MECHANICAL DESIGN/ENGINEERING (Paulo)

• SHMS/NPS installed/fitup

• platform completely installed and removed
• new detector deck section installed permanently

• Detector frame assembled

• Detector box installed onto detector frame and detector assembly ongoing by Orsay team

• lifting fixture expected in July

• beamline 1 (run group 1 - go to small angle) under physcis review and ready for fabrication

• beamline 2 (run group 2 - reduce radiation) under physics review, some changes requested, and ready for fabrication

• Items left to do:

• target pivot reinforcement
• cabling and cable management

• Action items:

• check on if any magnetic items in NPS frame

UPDATES FROM DSG (Aaron)

• CAEN HV Controls and Monitoring

• Labview hardware interlock program development

• temperature and humidity sensor
• dew point
• etc.

• LED graphical programming ongoing

• HV cables

• tested and podded
• 21 ready for cabling - can be moved from 126 to 108

• Action items:

• check on HV cables - ok to move cables from 126 to 108
• LED graphical programming

DAQ/ELECTRONICS AND SOFTWARE (David H, Brad)

• Main effort centered on updating HCANA to be compatible with MOD10 (full waveform) data

• data from PionLT used for setting up and testing

• Other efforts

• replay script
• database

• Moving DAQ/electronics equipment into RM108 for setting up the DAQ

• HV and power supplies

• HV cables are in 126
• power supplies etc in ESB
• LV power supply in 126 along with carts
• cabling and connectors on site - some cables still need to be assembled

• LEDs on each PMTs - LED boards are ready

• Need good oscilloscope in 108 - there is one available and planned to be moved there

• Action items:

• continue checking off items from list

GENERAL DISCUSSION

• Action item: make checklist to review action items to make sure that nothing forgotten

• impact on NPS magnet on HMS optics

• NPS frame magnetic/nonmagnetic

• looks like aluminum
• check if steel (bolts etc.)
• seems all on frame is nonmagnetic

• Mailing lists have been setup: nps and nps-daq mailing lists

• no action needed for current collaborators
• if new students/collaborators please sign up through JLab mailing lists

• Talk at Hall A/C meeting on June 16th and June 17th

• Propose one 40min long talk on both detector and physics

• start the talk with assembly acivities to show all the progress
• talk might have ~10 slides on physics upcoming and new proposed (ask experiments to provide one slide each - there will also be full talks on these proposals later in the workshop)

• speaker: Vladimir Berdnikov

• Talk with focus on new opportunities with NPS (DDVCS, etc.) at Workshop at VTech on July 18-22

• Abstract submission still open

NEXT MEETING: THURSDAY JUNE 30TH AT 9AM ET