ESB/DAQ Readout + System Testing

Tuesday 28 Jul 2026, 09:00 → 10:00 US/Eastern

https://uregina-ca.zoom.us/j/98915102548?pwd=6Be10hz7OQ3WLS2NvFGKcenSx5MbF6.1

ESB/Systems Testing Meeting

July 28, 2026

Attendees: Halen Davies, Junseop Shin, Akshaya Vijay, Jun Hyung Park, Bo Gyeong Seo, Norbert Novitzky, Henry Klest, Shefali, Jeongsu Bok, Wouter Deconinck, Adam Schoenwald, Shinhyung Kim, Minho Kim, Zisis Papandreou

Agenda

1. Updates
2. Manitoba Report - Shefali on cooling
3. KNU Report - Bo Gyeong Npe and Light Guides
4. AOB
5. Next meeting

Minutes

1. Updates: 
1. The Hall D tests are proceeding.  Access for set is on August 4, and maintenance day on August 5.
2. CERN tests preparations are proceeding smoothly.
2. Manitoba Report
1. Shehali presented an update on cooling measurements with two test articles, using a dummy SiPMs board.  Article 1 has a U-shaped tube; but the bending of this Cu tube is not planar and thermal pads had to be adjusted for this. 5 temp sensors used and water flow-through at 16, 18 and 22 legs.  Article 2 is an aluminum plate with drilled holes for the water.  It demonstrated better performance than Article 1, but would be susceptible to corrosion. A flow rate of 8.5 L/min was used in the tests. Henry suggested a test using no-sweat tubing on in a humid environment. The question of the required SiPM temperature stability was discussed: at present we are aiming for 0.2 C.
3. KNU Report:  Bo Gyeong reported on measurements with calorimeter modules and both S13 and S14 Hamamatsu SiPMs, using the Korean DAQ.  The number of photoelectrons (Npe) was extracted.  There was a discussion on whether it agrees with GlueX numbers, and this will be investigated further. Also, light guide transmittance results were shown as well as Geant4 simulations with cookies of two thicknesses (3 and 1 mm) and 0.5 mm air gap. 
4. Action Items: 
1. Aram to send updated power load based on rearrangement of electrical components, no of layers of the PCB, and related.
2. We need to research a heat pad for thermal conduction of the SiPMs to the cooling plate.
5. AOB: none.
6. Next meeting: August on System Testing; it is likely that this will be cancelled as Maria and the crew will be in Hall D setting up for the beam test.

09:00 → 09:10 Updates and Annoucements

Speakers: Maria Zurek (Argonne National Laboratory), Zisis Papandreou (University of Regina)

09:10 → 09:30 ESB Cooling

Speaker: . Shefali

ESB Engineering Test Article.pdf

09:30 → 09:50 Number of photons per deposited energy

Speaker: Bogyeong Seo

NPE per MeV Measurement Using Kuraray Single-Clad Fiber.pdf