Influence of Th-231 in the activity determination of Th-234 by Cerenkov counting

Nuno GAB; Korob RO

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Influence of Th-231 in the activity determination of Th-234 by Cerenkov counting

机译：切伦科夫计数法中Th-231对Th-234活性测定的影响

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A precise and simple method for the determination of Th-234 activity by Cerenkov counting is described. A calibrated natural uranium solution (having Pa-234m and U-238 in secular equilibrium) in 0.1 M HNO3 is used to construct the calibration curve. Because Th-231 (a beta-emitting nuclide present in the decay chain of U-235) contribution to Cerenkov counting is experimentally proved to be negligible only in the case of low enriched uranium samples, simple calculations are needed to accomplish the activity determination. (c) 2006 Elsevier Ltd. All rights reserved.

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《Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine》 |2007年第5期|共6页
作者
Nuno GAB; Korob RO;
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正文语种 eng
中图分类原子核物理学、高能物理学;
关键词
Th-234 activity determination; Th-231; Cerenkov counting; natural uranium; LIQUID SCINTILLATION; URANIUM;

机译：Th-234活性测定;Th-231;切伦科夫计数;天然铀;液闪法;铀;

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Influence of Th-231 in the activity determination of Th-234 by Cerenkov counting

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