Silica aerogels in high energy physics

被引：67

作者：

Sumiyoshi, T

Adachi, I

Enomoto, R

Iijima, T

Suda, R

Yokoyama, M

Yokogawa, H

机构：

[1] KEK, High Energy Accelerator Res Org, Ibaraki, Osaka 305, Japan

[2] Tokyo Metropolitan Univ, Dept Phys, Tokyo 112, Japan

[3] Matsushita Elect Works, Cent Res Lab, Kadoma, Osaka 571, Japan

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1998年 / 225卷 / 01期

关键词：

silica aerogel; cherenkov counter; high energy physics;

D O I：

10.1016/S0022-3093(98)00057-X

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Low-refractive-index silica aerogel is the most convenient radiator for threshold Cherenkov counters, used for particle identification in high energy physics. 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. 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 to 9.8 Mrad. Thanks to the improved transparency, aerogels prepared by the two-step method can be used as radiators for not only threshold type but also for Ring Imaging type Cherenkov counters. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：369 / 374

页数：6

共 16 条

[1]

ANRAKU K, 1994, KEK9440

[2]

*BABAR COLL, SLACR9545M BABAR COL

[3]

*BELL CORP, 942 KEK BELL COLL

[4]

CISBANI E, 1997, 97005 RICH HERM

[5]

DELEO R, 1997, CERNLAA9702

[6]

Frank I, 1937, CR ACAD SCI URSS, V14, P109

[7] A LARGE SILICA AEROGEL CHERENKOV COUNTER FOR SKS [J].

HASEGAWA, T ;

HASHIMOTO, O ;

NAGAE, T ;

SEKIMOTO, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 342 (2-3) :383-388

[8]

*LHC B COLL, 1995, 955 CERN LHCC LHC B

[9]

LOHSE T, 942 DESY PRC HERA B

[10]

MILLER D, 941277 CLNS

← 1 2 →