Determination of 235U isotope abundance by measuring selected pairs of fission products

被引：6

作者：

Qiao Yahua ^{[1
]}

Wu Jizong ^{[1
]}

Yang Yi ^{[1
]}

Zhang Ming ^{[1
]}

Liu Shilong ^{[1
]}

机构：

[1] China Inst Atom Energy, Beijing, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2012年 / 665卷

关键词：

Neutron induced fission; Uranium isotope abundance; Fission product yield; Decay gamma lines; ENERGY;

D O I：

10.1016/j.nima.2011.10.020

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new method to determine experimentally the isotopic abundance of uranium has been developed by measuring the ratios of selected fission product pairs. The relationship between the U-235 abundance and the ratios of 14 MeV neutron-induced fission products, which are N(Sr-92(38))/N(Ru-105(44)) and N(Sr-92(38))/N(I-135(53)), have been obtained. The results of 4 test samples show that the relative deviations between the measured and the reference U-235 abundances are less than +/- 3%. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：70 / 73

页数：4

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