Defined solid angle alpha counting at NPL

被引:4
|
作者
Arinc, Arzu [1 ]
Parfitt, Michael J. [1 ]
Keightley, John D. [1 ]
Wilson, Alan [1 ]
机构
[1] Natl Phys Lab, Hampton Rd, Teddington TW11 0LW, Middx, England
关键词
Alpha counting; Defined solid angle counting; UNCERTAINTY;
D O I
10.1016/j.apradiso.2015.11.073
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
This paper describes the design of and first measurements with the new defined solid angle (DSA) alpha counter at the National Physical Laboratory, UK, with the aim of enabling high-precision radionuclide standardisations for alpha-emitting radionuclides and half-life Measurements. The counter may be employed at three source-detector distances in order to monitor the measured activities with calculated geometrical efficiencies. Initial results are promising but further work is required to reduce the dominant uncertainty associated with the source activity distribution. Crown Copyright (C) 2015 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:198 / 204
页数:7
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