Activity standardization by means of a new TDCR-Cerenkov counting technique

被引：29

作者：

Kossert, K. ^{[1
]}

机构：

[1] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany

来源：

APPLIED RADIATION AND ISOTOPES | 2010年 / 68卷 / 06期

关键词：

Cerenkov counting; Free parameter model; TDCR; Beta-emitting radionuclides; RADIATION; ELECTRONS;

D O I：

10.1016/j.apradiso.2009.12.038

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Samples containing high-energy beta emitters in hydrochloric acid were measured in an in-house built triple-to-double coincidence counter. For the analysis of the results, a new method was developed that is based on a free parameter model. Formulas for the determination of the counting efficiencies were derived assuming a Poisson distribution for the generation of photoelectrons at the photocathodes and applying the Frank and Tamm theory to the production of Cerenkov light. The anisotropy effect for the emission of Cerenkov light was taken into account. The activities determined with the new method were compared with the results from other primary standardization techniques. The following radionuclides were successfully studied: (32)P, (89)Sr, (90)Y, (204)Tl and (106)Rh. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1116 / 1120

页数：5

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