HIGH-EFFICIENCY MODERATOR FOR PULSED NEUTRON-DIFFRACTION

被引:5
|
作者
MAYER, RE [1 ]
GRANADA, JR [1 ]
GILLETTE, VH [1 ]
DAWIDOWSKI, J [1 ]
机构
[1] NATL UNIV CUYO,INST BALSEIRO,RA-5500 MENDOZA,ARGENTINA
来源
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 288卷 / 2-3期
关键词
D O I
10.1016/0168-9002(90)90140-2
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Moderators consisting of clusters of smaller slow-neutron-decoupled moderating elements were tested through experiments of pulsed neutron diffraction, leakage spectrum measurement, and neutron pulse decay. A simple slab and a thin "sandwich" moderator were also measured for comparison purposes. For a given time width of the neutron pulse in the usual wavelength range for neutron diffraction, the proposed assembly produced a much higher neutron yield. Clues to the implementation of the desired time-response in moderator design and optimization are suggested by the present results. © 1990.
引用
收藏
页码:467 / 476
页数:10
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