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Entry  Wed Jun 18 15:25:06 2014, Nichin, Update, Electronics, BBPD Transimepedence plot BBPD.pngBBPD_readings_06-18-2014.zip
    Reply  Wed Jun 18 16:44:55 2014, Manasa, Update, Electronics, BBPD installed for BEATX detection 
    Reply  Sat Jun 21 01:46:28 2014, Nichin, Update, Electronics, BBPD Transimepedence plot BBPD_06-18-2014.pdfBBPD_readings_06-18-2014.zip
Message ID: 10087     Entry time: Sat Jun 21 01:46:28 2014     In reply to: 10058
Author: Nichin 
Type: Update 
Category: Electronics 
Subject: BBPD Transimepedence plot 

Sorry for the late update Koji.

There was a bug in my code that was pointed out by koji and here is the revised plot of transimpedence. The correct code attached.

The transimpedence value is unusually high, about 50kV/A-70kV/A for most of the range. The same was observed when the transimpedence was calculated on another BBPD in Elog.

It is highly unlikely that both the BBPDs are faulty and might be because I am doing the calculations wrong. Must dig deeper into this. Maybe it is a good idea to try the shot noise method of calculating the transimpedence and see how the values turn out. Will do that ASAP.

Attachment 1: BBPD_06-18-2014.pdf  7 kB  Uploaded Sun Jun 22 23:46:26 2014  | Hide | Hide all
Attachment 2: BBPD_readings_06-18-2014.zip  9 kB  Uploaded Sun Jun 22 23:46:50 2014
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