Performance of newly constructed plastic scintillator barrel in the WASA-FRS experiments and evaluation of radiation damage effects on multi-pixel photon counter
Abstrak
A barrel-shaped plastic scintillation counter with Multi-Pixel Photon Counter (MPPC) readout has been developed and operated in the first WASA-FRS experimental campaign at GSI. The detector was used to measure charged particles emitted from reactions induced by a 2.5 GeV proton beam incident on a carbon target, providing particle identification in combination with momentum reconstruction in a 1 T magnetic field. The performance of this detector, particularly its response to energy deposition and time resolution, was systematically investigated as a function of count rate and total number of irradiating protons. A time resolution of 45-75 ps ($σ$), depending on the energy deposition, was achieved. Stable performance was maintained under high-rate conditions up to 1.35 MHz per single counter, with no significant degradation in either signal amplitude or timing response. Radiation-induced damage to the MPPCs was observed primarily as a reduction in signal amplitude, with approximately $35\%$ decrease at an estimated 1 MeV neutron-equivalent fluence of $2.4 \times 10^{10}$ cm$^{-2}$.
Topik & Kata Kunci
Penulis (73)
Y. K. Tanaka
R. Sekiya
K. Itahashi
H. Alibrahim Alfaki
F. Amjad
M. Armstrong
K. -H. Behr
J. Benlliure
Z. Brencic
T. Dickel
V. Drozd
S. Dubey
H. Ekawa
S. Escrig
M. Feijoo-Fontán
H. Fujioka
Y. Gao
H. Geissel
F. Goldenbaum
A. Graña González
E. Haettner
M. N. Harakeh
Y. He
H. Heggen
C. Hornung
N. Hubbard
M. Iwasaki
N. Kalantar-Nayestanaki
A. Kasagi
M. Kavatsyuk
E. Kazantseva
A. Khreptak
B. Kindler
H. Kollmus
D. Kostyleva
S. Kraft-Bermuth
N. Kurz
E. Liu
B. Lommel
S. Minami
D. J. Morrissey
P. Moskal
I. Mukha
M. Nakagawa
C. Nociforo
H. J. Ong
S. Pietri
S. Purushothaman
C. Rappold
E. Rocco
J. L. Rodríguez-Sánchez
P. Roy
R. Ruber
T. R. Saito
S. Schadmand
C. Scheidenberger
P. Schwarz
V. Serdyuk
M. Skurzok
B. Streicher
K. Suzuki
B. Szczepanczyk
X. Tang
N. Tortorelli
M. Vencelj
T. Weber
H. Weick
M. Will
K. Wimmer
A. Yamamoto
A. Yanai
J. Zhao
for WASA-FRS/Super-FRS Experiment Collaboration
Format Sitasi
Akses Cepat
- Tahun Terbit
- 2025
- Bahasa
- en
- Sumber Database
- arXiv
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- Open Access ✓