Study of highly transparent silica aerogel as a RICH radiator

被引：38

作者：

Adachi, I

Fratina, S

Fukushima, T

Gorisek, A

Iijima, T

Kawai, H

Konishi, M

Korpar, S

Kozakai, Y

Krizan, P

Matsumoto, T

Mazuka, Y

Nishida, S

Ogawa, S

Itake, S

Pestotnik, R

Saitoh, S

Seki, T

Sumiyoshi, T

Tabata, M

Uchida, Y

Unno, Y

Yamamoto, S

机构：

[1] Jozef Stefan Inst, Ljubljana, Slovenia

[2] Chiba Univ, Chiba, Japan

[3] Nagoya Univ, Nagoya, Aichi, Japan

[4] Univ Maribor, Fac Chem & Chem Engn, SLO-2000 Maribor, Slovenia

[5] Univ Ljubljana, Fac Math & Phys, Ljubljana, Slovenia

[6] Tokyo Metropolitan Univ, Tokyo 158, Japan

[7] Toho Univ, Funabashi, Chiba 274, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2005年 / 553卷 / 1-2期

关键词：

aerogel; particle identification; belle;

D O I：

10.1016/j.nima.2005.08.022

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have developed silica aerogel to be employed as a RICH radiator in the Belle PID upgrade. For this purpose, new aerogel sample with a higher refractive index (n) of similar to 1.05 was successfully produced while keeping the hydrophobic feature. In this novel technique, a new solvent was introduced in the first step of the sol-gel process so as to avoid a deterioration of the optical quality, even for n greater than 1.03. Based on this procedure, the transmission length was obtained to be more than 40 mm at 400 nm wave length, which was twice longer than before, for samples of similar to 100 x 100 x 10 mm(3) size. In this article, the results of the new aerogel production will be shown together with some design considerations for the RICH radiator. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：146 / 151

页数：6

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