User name R. Michaels
Log entry time 17:13:38 on July30,2003
Entry number 108220
keyword=L-arm DAQ working
Jack replaced the broken CAMAC supply and the Left Arm DAQ works again.
I downloaded the trigger, did some test runs including 500 Hz rate (pulser), and
have started a cosmics run 23001.
During Monday night's troubles a high deadtime was observed - it was because the
gates passed through this defective crate. Absence of gate leads to long (3 msec)
deadtime. In other words, ALL the symptoms were due to this crate.
While checking today I noticed that the helicity on the redundant scaler did not
agree with the primary helicity gated scaler. This was because of a flakey cable
which probably was bumped during the effort to replace a scaler. (A model 1151
scaler had been replaced by R. Feuerbach on Tuesday because of Bus Errors.)
Now the redundant scalers agree again. I think all is ok.