Silica aerogel cherenkov counter for the KEK B-factory experiment

被引:59
|
作者
Sumiyoshi, T
Adachi, I
Enomoto, R
Iijima, T
Suda, R
Leonidopoulos, C
Marlow, DR
Prebys, E
Kawabata, R
Kawai, H
Ooba, T
Nanao, M
Suzuki, K
Ogawa, S
Murakami, A
Khan, MHR
机构
[1] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
[2] Princeton Univ, Princeton, NJ 08544 USA
[3] Chiba Univ, Inage Ku, Chiba 2638522, Japan
[4] Toho Univ, Chiba 274, Japan
[5] Saga Univ, Saga 840, Japan
关键词
D O I
10.1016/S0168-9002(99)00460-X
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Low-refractive-index silica aerogel is a convenient radiator for threshold-type Cherenkov counters, which are used for particle identification in high-energy physics experiments. For the BELLE detector at the KEK B-Factory we have produced about 2 m(3) of hydrophobic silica aerogels of n = 1.01-1.03 using a new production method. The particle identification capability of the aerogel Cherenkov counters was tested and 3 sigma pion/proton separation has been achieved at 3.5 GeV/c. Radiation hardness of the aerogels was confirmed up to 9.8 Mrad. The Aerogel Cherenkov counter system (ACC) was successfully installed in the BELLE just before this conference. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:385 / 391
页数:7
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