List of problematic BTOF trays
Updated on Thu, 2023-06-08 10:40. Originally created by geurts on 2022-10-25 21:41.
Trays 78, 88, and 119 could be partially recovered if we allow the tray errors to be ignored by DAQ.
Update [June 6, 2023, Geary Eppley]:
List of bad BTOF trays
status as of Oct.'22: 10 bad trays plus one tray (102) with HV issues- trays 2, 22, 49:
- No CAN-bus response
- need direct access to debug
- tray 8 (GMT tray):
- TDIG #4 is missing in CAN-bus response;
- 1st half of tray reports wrong bunch crossing
- 2nd half is missing data
- tray 48:
- CAN-bus and firmware are fine;
- trays does not show any data through DAQ path
- tray 64:
- TDIG #6 is missing in CAN-bus response;
- no headers in DAQ path from both tray halves
- tray 78, 88:
- firmware reports fine
- 1st half tray does not show up (TDIGs do not report to CAN-bus?)
- 2nd half tray does show data.
- tray 101 (similar behavior as tray #8, but not a GMT tray)
- TDIG #2 is missing in CAN-bus responses
- 1st half is missing in DAQ
- 2nd half missing (wrong?) bunch ID
- tray is inaccessible, behind TPC support arm
- tray 102:
- bad HV cable, inaccessible
- tray 119:
- HPTDC error "0x6"
- problem with first half of tray(?)
Trays 78, 88, and 119 could be partially recovered if we allow the tray errors to be ignored by DAQ.
Update [June 6, 2023, Geary Eppley]:
- two additional trays removed from DAQ in May: trayIDs 16 and 67
- the following trays are masked out of TOFmult in trigger:
- 4: hot 4 bit
- 43: open connection, behind TPC support
- 85: hot 24 bit, stepped on during TPC sector-21 repair
- 100: stuck "1" bit, came back Jan.5,'22
- 103: open connection, behind TPC support
- 104: hot 8 and 16 bit
- 117: tray masked Jan.27,'21, "1" bit hot
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