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Entry  Tue Mar 9 23:28:45 2010, Hao Huan, Serial Interface Frequency of the DRS Chip 
    Reply  Wed Mar 10 10:07:28 2010, Stefan Ritt, Serial Interface Frequency of the DRS Chip 
       Reply  Thu Mar 18 21:38:10 2010, Hao Huan, Serial Interface Frequency of the DRS Chip 
          Reply  Thu Mar 18 22:10:41 2010, Stefan Ritt, Serial Interface Frequency of the DRS Chip 
Message ID: 56     Entry time: Thu Mar 18 22:10:41 2010     In reply to: 55
Author: Stefan Ritt 
Subject: Serial Interface Frequency of the DRS Chip 

Hao Huan wrote:

 

 Thanks! The suggested algorithm looks promising. However, if the spikes take place only for those specific cells, is it possible to absorb them into the offset calibration?

No, since they are not constant. The bus segments charge up between readouts with a time constant of about 0.5s. So if you do the readout with 1Hz event rate and with 100Hz event rate, the peaks will differ by a factor up to 10, so a constant offset correction cannot take care of that.

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