Development of a wavelength-shifting-fibre-based scintillator neutron detector as an alternative to 3He at J-PARC/MLF

被引：5
|
作者：
Nakamura, T. [1 ]
Toh, K. [1 ]
Honda, K. [1 ]
Birumachi, A. [2 ]
Ebine, M. [2 ]
Sakasai, K. [1 ]
Soyama, K. [1 ]
Katagiri, M. [3 ]
机构：
[1] Japan Atom Energy Agcy, J PARC Ctr, Ibaraki 3191195, Japan
[2] Japan Atom Energy Agcy, Nucl Sci Directorate, Ibaraki 3191195, Japan
[3] Ibaraki Univ, Frontier Res Ctr Appl Atom Sci, Tokai, Ibaraki 3191106, Japan
来源：
INTERNATIONAL WORKSHOP ON NEUTRON OPTICS AND DETECTORS (NOP&D 2013) | 2014年 / 528卷
关键词：
D O I：
10.1088/1742-6596/528/1/012042
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A wavelength-shifting-fibre-based scintillator detector has been developed as an alternative detector to He-3 gas. The detector is intended for use in an inelastic neutron-scattering instrument at J-PARC. The detector being developed, which is based on the one made for a SENJU diffractometer, is designed to cover a large scattering angle with a moderate pixel size as well as exhibiting a high detection efficiency, low gamma-ray sensitivity and low background count rate. A prototype detector with a pixel size of 20 x 20 mm and a neutron-sensitive area of 320 x 320 mm(2) has been constructed. This paper describes the design of the detector and its performance relative to the original SENJU detector.
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页数：7
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