TY - JOUR
T1 - Test of a small prototype of the COMET cylindrical drift chamber
AU - Wu, C.
AU - Wong, T. S.
AU - Kuno, Y.
AU - Moritsu, M.
AU - Nakazawa, Y.
AU - Sato, A.
AU - Sakamoto, H.
AU - Tran, N. H.
AU - Wong, M. L.
AU - Yoshida, H.
AU - Yamane, T.
AU - Zhang, J.
N1 - Funding Information:
The experiment was performed at the BL33LEP of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) as a contract beamline (Proposal No. BL33LEP/6001-Q038 ). We are very thankful for staffs and students in the LEPS facility for their support during the beam time. This work of the Osaka University group was supported in part by the Japan Society of the Promotion of Science (JSPS) KAKENHI Grant No. 25000004 and 18H05231 ; and the Chinese Academy of Sciences (CAS) President’s International Fellowship Initiative under Contract No. 2018PM0004 . The work of the Institute of High Energy Physics (IHEP) was support in part by the National Natural Science Foundation of China (NSFC) under Contracts No. 11335009 and 11475208 ; Research Program of IHEP, China under Contract No. Y3545111U2 ; and the State Key Laboratory of Particle Detection and Electronics of IHEP, China , under Contract No. H929420BTD .
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/11/1
Y1 - 2021/11/1
N2 - The performance of a small prototype of a cylindrical drift chamber (CDC) used in the COMET Phase-I experiment was studied by using an electron beam. The prototype chamber was constructed with alternating all-stereo wire configuration and operated with the He−iC4H10(90/10) gas mixture without a magnetic field. The drift space–time relation, drift velocity, dE/dx resolution, hit efficiency, and spatial resolution as a function of distance from the wire were investigated. The average spatial resolution of 150 μm with the hit efficiency of 99% was obtained at applied voltages higher than 1800V. We have demonstrated that the design and gas mixture of the prototype match the operation of the COMET CDC.
AB - The performance of a small prototype of a cylindrical drift chamber (CDC) used in the COMET Phase-I experiment was studied by using an electron beam. The prototype chamber was constructed with alternating all-stereo wire configuration and operated with the He−iC4H10(90/10) gas mixture without a magnetic field. The drift space–time relation, drift velocity, dE/dx resolution, hit efficiency, and spatial resolution as a function of distance from the wire were investigated. The average spatial resolution of 150 μm with the hit efficiency of 99% was obtained at applied voltages higher than 1800V. We have demonstrated that the design and gas mixture of the prototype match the operation of the COMET CDC.
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U2 - 10.1016/j.nima.2021.165756
DO - 10.1016/j.nima.2021.165756
M3 - Article
AN - SCOPUS:85113937983
SN - 0168-9002
VL - 1015
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
M1 - 165756
ER -