γ能谱法测量铀矿石样品镭-氡平衡系数的初步探索  

Preliminary study on determining radium-radon equilibrium coefficient of uranium ore sample by γ-ray spectroscopy

作　　者：佘冠军[1] 刘宏章[1] 尹旺明[1] 汤彬[1] 

机构地区：[1]东华理工大学,江西抚州344000

出　　处：《世界核地质科学》2009年第4期237-240,244,共5页World Nuclear Geoscience

基　　金：国家高技术研究发展计划(863计划)项目(2007AA06Z111)资助

摘　　要：以测定铀矿石镭-氡平衡系数为目的,提出了对铀矿石样本进行γ能谱测量,根据铀系的衰变平衡规律,利用γ能谱中的特征峰计数计算镭、氡含量。推导了镭-氡平衡系数的计算公式,重点对相关参数进行了探讨。该方法简单、快速,进一步完善后可应用于钻孔岩心样本的现场分析。In order to determine the equilibrium coefficient of uranium ore sample, this article proposes a method by measuring γ-ray spectroscopy. According to the γ-ray decay and equilibrium law of uranium series, the content of radium and radon is calculated by the count of characteristic peaks in the γ-ray spectroscopy. Calculation formula is deduced for radium-radon equilibrium coefficient and the related parameters are discussed in detail. This method is simple and rapid, and can be used in on-site analysis of drilling core samples after further improved.

关 键 词：镭-氡平衡系数 Γ能谱 γ特征峰 质量 

分 类 号：P631.61[天文地球—地质矿产勘探]