Aerogel RICH for the Belle II forward PID

被引:23
作者
Nishida, S. [1 ]
Adachi, I. [1 ]
Hamada, N. [2 ]
Hara, K. [1 ]
Iijima, T. [3 ]
Iwata, S. [4 ]
Kakuno, H. [4 ]
Kawai, H. [5 ]
Korpar, S. [6 ]
Krizan, P. [6 ]
Ogawa, S. [2 ]
Pestotnik, R. [6 ]
Santelj, L. [6 ]
Seljak, A. [6 ]
Sumiyoshi, T. [4 ]
Tabata, M. [7 ]
Tahirovic, E. [6 ]
Yoshida, K. [4 ]
Yusa, Y. [8 ]
机构
[1] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan
[2] Toho Univ, Funabashi, Chiba 274, Japan
[3] Nagoya Univ, Nagoya, Aichi 4648601, Japan
[4] Tokyo Metropolitan Univ, Hachioji, Tokyo, Japan
[5] Chiba Univ, Chiba, Japan
[6] Jozef Stefan Inst, Ljubljana, Slovenia
[7] Japan Aerosp Explorat Agcy JAXA, Sagamihara, Kanagawa, Japan
[8] Niigata Univ, Niigata, Japan
基金
日本学术振兴会;
关键词
Particle identification; Cherenkov radiation; Hybrid Avalanche Photo Detector; Aerogel; COUNTER;
D O I
10.1016/j.nima.2014.06.061
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The Belle II spectrometer, a follow up of the very successful Belle experiment, is under construction at the SuperKEKB electron-positron collider at KEK in Japan. For the PlD system in the forward region of the spectrometer, a proximity focusing ring-imaging Cherenkov (RICH) counter with an aerogel radiator is being developed. The counter will provide a 4G separation of pions and kaons up to momenta of 4 GeV/c. For the position sensitive photon sensor, a 144 channel Hybrid Avalanche Photo Detector (HAPD) has been developed with Hamamatsu Photonics K.K. The readout electronics is based on the custom developed ASIC. The design of the components is currently being finalized and part of their mass production have already started. Herein, we report the final design of the counter and a prototype test conducted with test beams at DESY. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:28 / 31
页数:4
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