Connections into the WUT TDC - Run 1 and part of Run 2¶
Rationale: the C channels of the WUT have three thresholds and are better for timing. The D channels have only one threshold. I decided to put the two DS PMTs into the C channels as well as 2 US PMTs, chosen because they were better behaved and on opposite sides of the counter.
- USTOF1 = Upper Left --> WUTD0
- USTOF2 = Lower Left --> WUTC0
- USTOF3 = Lower Right --> WUTD1 XXXXXXX NOT CONNECTED!!
- LARIAT FAST TRIGGER NIM --> WUTD1 for timing verification
- USTOF4 = Upper Right --> WUTC1
- DSTOF1 = Right --> WUTC2
- DSTOF2 = Left --> WUTC3
- SC3 = Downstream FTBF scintillator paddle --> WUTD3
WUTD2 left empty for the moment. Might put the CER there.
The upper LEMO input is fed by the RESET pulse, see The_LArIAT_supercycle. On a NIM logical high it resets the WUT's counters.
The lower LEMO input is fed the fast trigger. When operated with
<externalTrigger>1</externalTrigger> it should only save timeframes in which a trigger occurs.
Connection into the WUT - Run 2 after 2016.05.02 15:30¶
Staring at the top of the WUT and going down:
- WUT C3 DSTOF2
- WUT C2 DSTOF2
- WUT C1 USTOF4
- WUT C0 USTOF2
- WUT D3 no connection
- WUT D2 no connection
- WUT D1 USTOF3
- WUT D0 USTOF4
During part of Run 2 the WUT was on hiatus to see if it was inducing
noise elsewhere. It was not.