|
MUST2
SAMURAI_2018
S3-LEB-LPC
SUPERNEMO
MUGAST
EXPAND
SCALP
GALATRON
HiCARI
VELO
|
| MUST2 |
Not logged in |
|
|
|
|
Message ID: 889
Entry time: Wed Jul 11 13:24:34 2018
|
| Author: |
Daisuke,CATS team: Séb, Thom ; Franck, Pierre, Valérie |
| ExpNbr: |
e738 |
| Type: |
RUN |
| Category: |
General |
| Status: |
Fixed |
| Target-Source: |
Cryo-LH2 |
| Subject: |
Runs 344-345 |
|
|
Wed 11 July 2018
run 344 start 12h43 ; stop 13h03
e748 Exxx 900M 11 juil. 13:03 /data/e748X/e755/acquisition/run/run_0344.dat.11-07-18_12h43m33s
run 345 start 13h02 ; stop 14h49
e748 Exxx 3,2G 11 juil. 14:49 /data/e748X/e755/acquisition/run/run_0345.dat.11-07-18_13h02m22s
- - - - - - - - - - - - - - - - - -- - - - - - - - -- - - - - - - - -- - - - - - - - -
change of HV on CATS during Run 345: from 650V to 670V
Current on CATS2 is fluctuating (from 0.12 µA up to 0.6 µA) at oscilloscope, signals remain correct.
At 670V it is better for CATS2 efficiency
See plots : run345_EnergyChioRawTsdiff.png and run345_correlDeIChiotofCatsHF.png
Integral for IC is 8075; integral of the physical events in IC DE versus TOF CATS1 is 7548; for CATS2: integral 7044.
We have a rough estimate of CATS efficiencies: 7548/8075= 93%, for CATS2 87%.
The counting rates on CATS have closer values (at 650V, CATS2 is at 130 k pps; at 670V rate is 170k pps)
CATS1: 190k pps
CATS2: 170k pps
Plastic: 175k pps
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|