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User name brads
Log entry time 13:48:10 on November20,2008
Entry number 249984
keyword=Pb-glass test PMTs signal & HV channelsThese detectors are set up on the green shield wall at ~135deg beam-right. This is set up for a parasitic background measurement. It's entirely independent of all DAQs.
The HV card in use is slot 8 of the Beamline crate (see snapshots).
I confirmed all signals were present at the patch panel connection in the Hall. One of the signals was working fine (Pb-gl #19) on my first check. The signal cable for Pb-gl #18 was plugged into the "wrong" signal output on the base. I had to re-seat the base-PMT connection on the paddle to get it to work (it was a little cockeyed). I put a green dot next to the correct signal output on both pb-glass detectors for future reference.
From beam-right to beam-left: pb-glass #18, pb-glass #19; the paddle is in front of the pb-glass detectors.
Detector Signal cable Patch Panel HV channel
Pb-glass #19 Aux22 50 2
Pb-glass #18 Aux20 49 1
Paddle Aux24 51 0
FIGURE 1
FIGURE 2
