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User name A. Camsonne
Log entry time 21:06:22 on June 15, 2009
Entry number 281622
Followups:
keyword=Compton electron detector work
Today,
we traced down the problem of the left detector ( odd strip numbers ), to
a filtering ferrite which seemed to have failed ( maybe because of the
power supply short ).
It was by passed and the detector seemed to work though only tested with
noise.
We double checked that laser status was recorded correctly.
Though I still need to figure out the bad data flagged as laser off in
runs from previous night.
I also put the analog board on plane A.
The signals goes to a 428 linear fan which are sent to the scope on
adaqs1 and to 10 times amplifier. The signal of cable 19 is split on
another fan out and sent upstairs on cable 19 and to the flash ADC on the
second channel, it would be good to have configuration to read out this
channel or both photon and analog signal. Cable 14 has the other strip
and is on the scope and sent upstairs through 10 times amplifier.
A copy of this log entry has been emailed to: rom@jlab.org,gbfranklin@cmu.edu