A gamma ray detector with lead-scintillator tiles and WLS fiber readout for the experiment at SPring-8 to study the GDH sum rule

被引：1

作者：

Daito, I

Geso, M

Hasegawa, S

Horikawa, N

Ichihara, H

Iwata, T

Kondo, K

Menze, D

Miyachi, Y

Nakayama, H

Tanoshima, S

Wakai, A

机构：

[1] Nagoya Univ, Dept Phys, PI Grp, Chikusa Ku, Nagoya, Aichi 4648602, Japan

[2] Nagoya Univ, CIRSE, Chikusa Ku, Nagoya, Aichi 4648602, Japan

[3] Royal Melbourne Inst Technol, Dept Med Radiat Sci, Bundoora, Vic 3083, Australia

[4] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2002年 / 481卷 / 1-3期

关键词：

lead-scintillator tiles; WLS fibers; gamma ray detector;

D O I：

10.1016/S0168-9002(01)01361-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A prototype gamma ray detector for the detection of pi(9) in the proposed experiment at SPring-8 to study the Gerasimov-Drell-Hearn (GDH) sum rule (GDH experiment) has been built and tested. The detector is fabricated with lead-scintillator tiles and wave length shifter fiber readout. This detector will be placed inside the bore of the superconducting magnet which supplies the polarized target with a 2.5 T magnetic field. High-detection efficiency (above 85%) for the gamma rays is the most important requirement for this detector to be employed in the proposed experiment. It has been tested with minimum ionizing particles, electrons and gamma rays. The results of the tests in comparison with some Monte Carlo simulations are presented, The evaluated efficiency for gamma rays ranging in energy above 50 MeV is higher than 90%. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：188 / 199

页数：12