Measurement of radon emanation factor from granular samples: effects of additives in cement

被引：56

作者：

Stoulos, S ^{[1
]}

Manolopoulou, M ^{[1
]}

Papastefanou, C ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, Dept Nucl Phys, Div Nucl & Particle Phys, Atom & Nucl Phys Lab, Thessaloniki 54124, Greece

来源：

APPLIED RADIATION AND ISOTOPES | 2004年 / 60卷 / 01期

关键词：

Ra-226; Rn-222; radon emanation factor; cement; fly ash; phosphogypsum;

D O I：

10.1016/j.apradiso.2003.10.004

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two methods for radon emanation factor determination were performed and compared regarding their measuring accuracy: (a) by hermetically closing the sample in an airtight container and measuring the induced radon activity, and (b) by mixing charcoal and sealing the sample hermetically and after placing the sample in an open vessel with no charcoal addition, measuring each time the Ra-226 content using gamma-spectrometry. Measurements of radon emanation factor of cement and pozzolanic additives, i.e. fly ash and phosphogypsum were also performed. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：49 / 54

页数：6