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Message ID: 730     Entry time: Thu Jun 28 05:22:31 2018
Author: OH 
Subject: Analysis of R7 -> R9 
R7_0 -> R7_1 High Energy pulser run
R8_0 -> R8_1 Low energy puler run
R9_52 -> R9_62 Alpha run

On analysing all three runs it appears an ASIC is missing in FEE 29 - attachments 1 - 3

This ASIC does not appear to be missing in the alpha run carried out on June 24th - attachment 4

I do not believe that this is a broken ASIC.

I have performed an ASIC check load on the FEE module to try and regain it. I will check the files created since
later to see if it has been regained.

Using the pulser runs two different sets of offsets were calculated. One using the low energy run and one using
the high energy.
To compare the two different sets of offsets calculated Ex vs Ey plots were created for the first detector.

Attachment 5 shows these plots on the left is the low energy offsets and on the right the high energy pulser offsets
It can be seen that the grouping is much better with the events being tighter to the y = x line on the run sorted
using the low energy pulser offsets.
Attachment 1: lowPulserADC.png  40 kB  Uploaded Thu Jun 28 06:25:10 2018  | Hide | Hide all
lowPulserADC.png
Attachment 2: highPulserADC.png  97 kB  Uploaded Thu Jun 28 06:25:10 2018  | Hide | Hide all
highPulserADC.png
Attachment 3: alphaADC.png  67 kB  Uploaded Thu Jun 28 06:25:22 2018  | Hide | Hide all
alphaADC.png
Attachment 4: alphaOld.png  50 kB  Uploaded Thu Jun 28 06:25:31 2018  | Hide | Hide all
alphaOld.png
Attachment 5: ExEyPulser.PNG  31 kB  Uploaded Thu Jun 28 09:55:22 2018  | Hide | Hide all
ExEyPulser.PNG
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