The large area emulsion tracker of the CHORUS experiment

被引:3
作者
Aoki, S
Dupraz, J
Fabre, JP
Flegel, W
Hara, T
Ishii, Y
Kawamura, T
Kim, DC
Kurihara, T
Niu, E
Ogawa, S
Shibuya, H
Song, JS
Van Beek, G
Vilain, P
Watanabe, J
Wilquet, G
Yoon, CS
机构
[1] Toho Univ, Dept Phys, Funabashi, Chiba 2748510, Japan
[2] Kobe Univ, Kobe, Hyogo, Japan
[3] CERN, CH-1211 Geneva 23, Switzerland
[4] Gyeongsang Natl Univ, Jinju, South Korea
[5] ULB VUB, Interuniv Inst High Energet, Brussels, Belgium
基金
日本学术振兴会;
关键词
nuclear emulsion; tracking device; spectrometer; momentum measurement; automatic scanning; neutrino oscillation;
D O I
10.1016/S0168-9002(02)00484-9
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A new type of tracking device using large area nuclear emulsion sheets was developed for the short baseline neutrino oscillation experiment, CERN-WA95/CHORUS. The emulsion tracker is made of three layers, each 25 mm thick including support, and covering an area of about 5 m(2). Two layers were installed upstream and one downstream of the hexagonal magnet of the CHORUS hadron spectrometer. The achieved position resolution over the whole area is 25 mum, which keeps the momentum resolution of the spectrometer below 30%, up to momenta of about 15 GeV/c. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:144 / 154
页数:11
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