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MUST2
SAMURAI_2018
S3-LEB-LPC
SUPERNEMO
MUGAST
EXPAND
SCALP
GALATRON
HiCARI
VELO
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| MUST2 |
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Message ID: 864
Entry time: Tue Jul 10 05:25:42 2018
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| Author: |
Shumpei |
| ExpNbr: |
e738 |
| Type: |
BEAM |
| Category: |
General |
| Status: |
Fixed |
| Target-Source: |
Cryo-LH2 |
| Subject: |
triton contamination in the 9C beam setting |
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In MUST2 dE-E plot, strong locus for triton E ~ 40 MeV exists.
Kinematics for triton bellow 45 MeV matches the kinematics of triton 40MeV beam proton elastic scattering.
If coincidence of proton required, still exists for some region (proton forward scattering with enough energy to pass through DSSD).
Kinematics for proton matches the kinematics of recoil proton by 40MeV triton beam.
Sum of the proton and triton energy has a peak around 40 MeV.
Locus still exists with TOF gate by CATS1-HF.
Triton energy for (p,t) reaction will be higher than ~ 50 MeV, so can't be a background.
The total number of triton bellow 45 MeV and above DSSD range in run0312 (80 minutes) is ~ 20000 (~ 4 cps for all the telescope). |
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