Design and construction of the cylindrical drift chamber for the COMET Phase-I experiment

被引：0

作者：

Satoa, A. ^{[1
]}

Yoshida, H. ^{[1
,2
]}

Moritsu, M. ^{[3
]}

Jiang, X. ^{[4
,5
]}

Kuno, Y. ^{[1
,2
]}

Li, H. -B. ^{[4
,5
]}

Li, W. -G. ^{[4
,5
,9
]}

Matsuda, Y. ^{[1
]}

Miao, H. ^{[4
,5
]}

Nakamura, Y. ^{[1
]}

Nakatsugawa, Y. ^{[7
]}

Nakazawa, Y. ^{[8
]}

Ohta, S. ^{[1
]}

Okinaka, K. ^{[1
]}

Sakamoto, H. ^{[1
]}

Wong, M. L. ^{[1
]}

Wong, T. S. ^{[1
]}

Wu, C. ^{[4
,6
]}

Xing, T. -Y. ^{[4
,5
]}

Yamane, T. ^{[1
]}

Yuan, Y. ^{[5
]}

Zhang, J. ^{[4
,5
]}

Zhang, Y. ^{[4
]}

Zhang, Z. -K. ^{[4
,5
]}

机构：

[1] Osaka Univ, Dept Phys, 1-1 Machikaneyama, Toyonaka, Osaka 5600043, Japan

[2] Osaka Univ, Res Ctr Nucl Phys, 10-1 Mihogaoka, Suita, Osaka 5670047, Japan

[3] Kyushu Univ, Dept Phys, 744 Motooka,Nishi ku, Fukuoka 8190395, Japan

[4] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[5] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[6] Spallat Neutron Source Sci Ctr, Dongguan 523808, Peoples R China

[7] Wakayama Med Univ, 811-1 Kimiidera, Wakayama, Wakayama 6418509, Japan

[8] KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan

[9] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2024年 / 1069卷

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

Gas detector; Drift chamber; Cylindrical detector; Muon; Particle physics; Lepton-flavor violation; READOUT ELECTRONICS; DETECTOR;

D O I：

10.1016/j.nima.2024.169926

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

COMET is an experiment at J-PARC that searches for the charged lepton flavor violating process of neutrinoless muon-to-electron conversion (mu -> e conversion) in a muonic atom. The COMET Phase-I experiment, which represents the first stage of its staged approach, utilizes the cylindrical drift chamber (CDC) as the main detector to measure the momentum of electrons emitted from mu -> e conversion in a 1 T magnetic field. The CDC is designed for optimal performance to achieve the best momentum resolution and effectively separate the mu -> e conversion electron signal from background signals. This design entails adapting He:i-C4H10 (90:10) as its chamber gas and employing an all-stereo wire configuration. This document provides a comprehensive overview of the CDC detector, encompassing design considerations, mechanical structure, construction methodologies, and results of performance evaluations conducted using cosmic-rays.

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页数：15

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