|
MUST2
SAMURAI_2018
S3-LEB-LPC
SUPERNEMO
MUGAST
EXPAND
SCALP
GALATRON
HiCARI
VELO
|
| MUGAST |
Not logged in |
|
|
|
|
Message ID: 4229
Entry time: Mon Apr 15 01:49:49 2019
|
| Author: |
Freddy |
| ExpNbr: |
e744s |
| Type: |
MUST2 |
| Category: |
General |
| Status: |
Fixed |
| Target-Source: |
N/A |
| Subject: |
CsI - low energy suppression |
|
|
The suppression zone around the pedestals for the CsI was set to 8210 since the beginning of the experiment.
It corresponds to about 30 channels above the zero (8192). The gain for the CsI is of 40 keV/channel.
This gives an artifical threshold (visible in the dE-E) spectra for punch through event at about (30 ch * 40keV/ch = 1.2 MeV)
It is rather high and could possibly be lowered. This implies a change in the DAS which apparently has been closed since the beginning of the beam time to avoid interferences with GECO.
It has to be discussed during the day wether it is necessary/preferable or not.... |
|
|