Agenda

Preparation of parts for ECAL -- Sasha
- - HV long cable: Sammy and Mindy have to assemble 10 cables
- - HV distribution boards [1][2]
- - Fix front panel of two LV distribution boards, re-install the boards on the detector frame [3]
- - LED: Started testing the prototype of the LMS (need to make the detector room light tight)
Installation of the FCAL2 detector & integration to GlueX -- Sasha / Vlad / Hakob / Laveen
- Report from students [4]
- Installation of HV cables [5][6]

- two remaining bundle of cables will be ready in about a week

- Installation and testing cables and dividers [7]
- Installation of long signal cables [8]
- Installation LV patch panels and cables [9]
- Installation of optical fibers [10]
- Detector installation page
- Safety briefings
Students -- Sasha
- - Expect one student from Wuhan, waiting for the US visa
Beam tests with the PS
- - measure shower beam profile and reconstruction in the crystal/LG transition region
  - (install prototype with 5x5 PbWO4 modules + ? LG)
Other hardware projects
- prototype of the ECAL veto counter (?)
Analysis/Simulation
- Close shower separation studies -- Laveen
New manpower for the upcoming run and data analysis, -- Liping

Minutes

Attendees: Bill, Laveen, Liping, Jane, Vlad, Sasha, Axel, Susan, Stjepan, S.T.

Front panel of two LV distribution boards needed to be fixed
2 HV cable bundles each containing 9 cables are in Hall, 1 more bundle has been assembled
Waiting for HV distribution boards, due in ~2 weeks
6 PMT divider layers remain to be installed
- Found some common problems: weak solder joints, bad connectors
- One short cable needed to be swapped out
- Added velcro band to connect chains (supporting cables) together
Laveen presented an update on 2-shower separation studies
- Separation efficiency at small separation distances depends on energy asymmetry of two showers and total energy
Liping reported that a professor from the China University of Geosciences (Wuhan) is interested in joining GlueX to work on JEF physics
Vlad pointed out that we need to make sure that the test setup in one arm of the PS setup in the Hall D we have used in the past is restored
- Could use this to measure shower profile + study lead glass-lead tungstate interface with small-scale prototype
  - Will need hardware design/CAD drawings for box to contain crystals and lead glass blocks
- Test veto prototype? Thin scintillator paddles with wave-length shifting fibers
- Sasha thinking about run plan for usage of this arm, will work on a wiki page