期刊论文

中文

辐射防护

1000-8187

2022

42

1

11-18

国家自然科学基金项目（U1703123）； 东华理工大学放射性地质与勘探技术国防重点学科实验室开放基金项目（RGET1602）；

本校为第一机构

随着对氡气危害认识的加深,花岗岩作为生产、生活上接触较多的天然辐射来源,其氡析出特征对人居环境的辐射影响得到广泛关注。本文从岩石的原生特性和次生变化两方面对花岗岩的氡析出进行文献综述,发现花岗岩氡析出与岩石化学成分、矿物成分和成因类型等原生特性以及次生风化和蚀变导致的放射性核素分布、矿物颗粒大小以及岩石微裂隙等因素密切相关。研究表明,铀镭活度与花岗岩氡析出表现出线性相关,但受铀赋存矿物类型的影响,矿物成分的具体影响还需进一步研究,可能与其构造背景或者物质来源有关。岩石次生变化对花岗岩氡析出的影响主要表现为风化和蚀变使得放射性核素迁移到颗粒表面和岩石裂隙...

With the deepening awareness of radon hazards,granite is a natural radiation source to which people are more often exposed in production and daily life.Granite’s radon exhalation characteristics and its radiation impact on human settlements have been widely attention.In this paper,a literature review has been made for radon exhalation in granite from two aspects of primary properties and secondary changes of rocks.It is found that the radon exhalation of granite is relevant to the primary properties of rock chemical composition,rock mineral co...