[Vetroc_daq_sbs] ADC gate-signal

[R. Evan McClellan]

Carlos,

Any progress this morning? I'll come out to ESB between lunch and the TO training.

-Evan


----- Original Message -----
From: "Carlos Ayerbe Gayoso" <gayoso at jlab.org>
To: "Vetroc_daq_sbs" <vetroc_daq_sbs at jlab.org>
Sent: Wednesday, October 5, 2016 7:47:36 PM
Subject: [Vetroc_daq_sbs] ADC gate-signal

Hi all,

definitely, I don't understand what happen here. I don't find any coincidence between PMT signal and pulser. It is not due to the use of VETROC as level translator because I connected the pulser directly to the oscilloscope and nothing. 

I connected, with a T connector, the pocket pulser through a discriminator, then to the fan in/fan out module and the rest as normal trigger signal as before, and the other output from the pocket pulser to the NINO card and I got a beautiful coincidence (as expected). 

PMTs noisy? cross-talk? (I didn't see this effect in the fastbus test). 

I'll try tomorrow changing the pulser with very long period. I'll go to the Target Operator Training tomorrow afternoon. 

Any suggestions are welcome

Cheers

-Carlos
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