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User name R. Michaels
Log entry time 03:56:00 on August26,2009
Entry number 286049
keyword=DAQ study of oversampling
Still waiting for beam ...
Try ovs=3 but rampdelay=50
Run 11641 ... As before, 4 of the blumis show the DAC value
and the other 4 seem normal. Actually, on the 4 that show
DAC, it's probably the peak, but 2 of these show the beam
and the other 2 are straight lines. The structure on each
ADC is the same: first 2 channels normal, next shows DAC
peak with beam, 4th shows just DAC lines. It seems we are
reading the ADC when it's not ready, or something.
Run 11642 ... ovs=7, rampdelay=200, integ=1500.
Qualitatively similar to run 11641.
Clearly we have some work to do in the test crate.