Connection

Meeting time and location:

Agenda

Preparation of parts for ECAL -- Sasha

Waiting for a cable to connect the newly installed MPOD with the light source
Parts 3-D printed for the reference PMTs (Hakob is looking on this) , Bobby is preparing a mounting plate and box.
Communicated with Adam H. regarding the alpha sources (some paper work was needed). Two sources will be delivered to the Hall.

Installation of the FCAL2 detector & integration to GlueX -- Sasha, All

Installing new LMS light source [1]
- Signal waveforms [2]
Installing LMS electronics [3]
Remaining tasks:
- Install reference PMTs: Attach the alpha sources and optical fibers to the PMTs
- Connect the PMTs to the HV supply and the readout crate (cables have already been installed)
- Test the LMS CSS control

Preparing for the run -- Sasha

Stability of the ECAL performance. Testing and addressing issues with the ECAL modules
- ECAL modules with loose PMT connections [4] [5]
Calibration and stabilization of the light and humidity sensors [6]
Integrating ECAL into the GlueX trigger [7]

Restoring PS test setup [8]

Preparing a prototype with 5x5 ECAL modules (all modules exist) and 5x5 LG modules (can use dividers with the 'conventional' power supply)
- Check if we can refurbish the beam profiler to place in front of the prototype.

ECAL commissioning -- Sasha, All

Calibrations

Attendees: Sasha, Vlad, Zisis, Mac, Bill, Igal, Hakob, Liping, Xiaolin, Jane, Olga, S.T.

Waiting for cable to connect MPOD to new LMS light source
Parts for reference PMT assembly 3D-printed
- Still need enclosure for radioactive source stack
- Working on paperwork for radioactive source
- Reference PMT needs to be incorporated into CSS
New light source for LMS with 25 LEDs much brighter
- Pulse shapes narrower than previous incarnation
- Used to adjust delays for trigger
- Some small amplitudes seen with new light source, but these were confirmed to be due to the fibers
Checked ECAL stability -- looking for loose connections after maintenance in dark box
- Another LMS scan found 7 loose connections, now fixed after 1.5 days of effort
Some issues with dark room sensors deviating from previous measurements, probably due to power work in dark room.
Working on protocol for working in dark room
- When going in for maintenance, turn off fans as well as HV
Working on integration of ECAL into trigger
- Will be separate component in energy sum
- New GTP firmware installed
- Checked VTP firmware
- New DAQ code to be incorporated into main DAQ system
Planning to use PS arm in Hall-D to do shower shape studies and look at ECAL-FCAL transition region
- Profile for y-position
Sasha worked on making Zhikun's scripts for setting new HV settings more modular
Need to decide which clusterization code to use for reconstruction before REST production