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.

引用

页数：7

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