Measurement of the thermal and fast neutron flux in a research reactor with a Li and Th loaded optical fibre detector

被引：14

作者：

Yamane, Y

Uritani, A

Misawa, T

Karlsson, JKH ^{[1
]}

Pázsit, I

机构：

[1] Chalmers Univ Technol, Dept Reactor Phys, SE-41296 Gothenburg, Sweden

[2] Nagoya Univ, Dept Nucl Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[3] Kyoto Univ, Inst Res Reactor, Kumatori, Osaka 5900451, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1999年 / 432卷 / 2-3期

关键词：

optical fibre; research reactor; axial flux measurement; scintillation detector;

D O I：

10.1016/S0168-9002(99)00473-8

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The spatial dependence of thermal and fast neutron flux was measured axially in the core of a 1 MW research reactor. The measurements were made by a thin optical fibre detector with a neutron sensitive ZnS(Ag) scintillation tip. For thermal neutrons Li-6 was used, whereas for fast neutrons Th-232 was used as neutron converter. The spatial dependence was measured by moving the fibre axially with a uniform speed. The measurement takes a few minutes, compared to up to 10 h with the conventional wire activation method. Comparison with traditional measurements shows a good agreement. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：403 / 409

页数：7

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