放射系

结果发现：由于天然放射系中最大能量b粒子的射程大于单块饰材，不能用表面b辐射水平进行无损检测判断；

The results showed that the range of beta ray with the maximum energy in natural radioactive series is longer than thickness of a piece of decorative materials .

深海沉积物岩心锕放射系核素的γ谱测定

Measurement of actinium series radionuclides in deep - sea sediment core using γ spectrometry

在论述铀放射系不平衡原理的基础上，提出了地下水三元补给体系混合比的面积坐标算法。

According to the basic principle in uranium series disequilibrium , a calculating method for the mixing ratio of a three source recharge system of groundwater is raised .

方法γ能谱测量中，长期平衡时天然放射系中各子体的活度浓度与母体相同，在非长期平衡时，各子体及母体的活度浓度各不相同。

Methods In gamma ray spectrum analyses , the activity concentration of every daughter is the same as that of its parent when the material is in secular equilibrium . The activity concentrations of daughters and their parents are different when the material is out of secular equilibrium .

后装~（192）Ir近距离放射治疗泌尿系肿瘤

￣( 192 ) Ir afterloading brachytherapy for genitourinary carcinoma

与泌尿系癌有关的多原发癌（附10例报告）后装~（192）Ir近距离放射治疗泌尿系肿瘤

Genitourinary cancer and multiple primary malignant neoplasms : report of 10 cases ￣( 192 ) Ir afterloading brachytherapy for genitourinary carcinoma

根据人类基因组X染色体上FMR1I、DS、FATE、BGN、F8A等5个基因的信息资源，用已构建的猪/仓鼠96个放射杂交细胞系分析猪染色体该5个基因间的连锁关系。

In this study , based on the information of five human genes ( FMR1 , IDS , FATE , BGN , F8A ) on the X chromosome , the linkage relationship of these five genes in pigs were analyzed by a panel of 96 radiation hybrid cell lines .