2020 Winter - 2021 Spring

1. Hall work:
   • Water level sensor installation
     • Total: 2 days. 1 day testing + 1 day installation
   • Darkening leak check
     • Total: 1 day
   • Modification on vent exit to reduce FPGA temperature
     • Total: 3 days. 1 day diagnose, 1 day test and 1 day installation. Excluding time for designing time.
   • DIRC Diffuser seal issue
     • Total: 2 days. 1 day test and 1 day installation. Excluding time for water seal test
   • Contaminated mirror replacement in north upper OB
     • Total: 1 days. Uninstall + Disassembly: 1 day; mirror removal + setting up clean area, mirror gluing+ curing: 3 days; silicone seal + cleaning + assembly: 1 days; installation: 1 day. Excluding time for water seal test
   • Inspect the south lower OB
     • 1 day
     • If mirror problem, adding 6 more days for mirror replacement.
2. Non Hall Work:
   • Testing spare DIRC modules
   • Control and operation
     • Alarm modification strategy
     • Resolving (double checking) DIRC hole in occupancy before run starts
     • Dis-entangle DIRC interlock and interlock reset from FCAL and CCOM
     • Individual (stand alone) SiPM TDA offset
   • Tile FPGA voltage regulation issue.
   • Recover loan-out (Duke SOLID group) MOROC chips