A novel method for the activity measurement of large-area beta reference sources

被引：0

作者：

Stanga, D. ^{[1
]}

De Felice, P. ^{[2
]}

Keightley, J. ^{[3
]}

Capogni, M. ^{[2
]}

Ioan, M. R. ^{[1
]}

机构：

[1] Natl Inst R&D Phys & Nucl Engn Horia Hulubei, IFIN HH, POB MG 6, R-077125 Bucharest, Romania

[2] Inst Nazl Metrol Radiaz Ionizzante, ENEA, CR Casaccia, POB 2400, I-00100 Rome, Italy

[3] Natl Phys Lab, Hampton Rd, Teddington TW11 0LW, Middx, England

来源：

APPLIED RADIATION AND ISOTOPES | 2016年 / 109卷

关键词：

Method of measurement; Large area reference sources; Numerical model; CALIBRATION; EFFICIENCY;

D O I：

10.1016/j.apradiso.2015.12.030

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel method has been developed for the activity measurement of large-area beta reference sources. It makes use of two emission rate measurements and is based on the weak dependence between the source activity and the activity distribution for a given value of transmission coefficient. The method was checked experimentally by measuring the activity of two (Co-60 and Cs-137) large-area reference sources constructed from anodized aluminum foils. Measurement results were compared with the activity values measured by gamma spectrometry. For each source, they agree within one standard uncertainty and also agree within the same limits with the certified values of the source activity. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：358 / 362

页数：5

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