U_3Si_2-Al燃料元件γ射线吸收系数标定方法研究  

Study on the Attenuation Coefficient Calibration Method of U_3Si_2-Al Fuel Element

作　　者：王学权[1] 许贵平[1] 罗建东[1] 陈杰[1] 杨力[1] 张晓川[1] 

机构地区：[1]中国核动力研究设计院核燃料元件及材料研究所,成都610213

出　　处：《核电子学与探测技术》2016年第9期945-947,952,共4页Nuclear Electronics & Detection Technology

摘　　要：为了更准确标定U_3Si_2-Al燃料元件的γ射线吸收系数,论文设计了不同标样进行了单独定标和联立定标。利用不同标定方法获得的γ射线吸收系数进行燃料元件U_3Si_2、Al质量厚度的测试,并将测试结果分别与化学分析结果进行对比。实验结果表明,以燃料元件作为标样的联立定标法在保证Al测量精确的同时提高了U_3Si_2的测量精度。Two different γ- ray attenuation coefficient measurement methods designed for U3Si2 -Al fuel element in this paper, which are Separate and Simultaneous calibration. Meanwhile, the U3Si2 and Al mass thickness of the fuel element measured by the coefficients got by both calibration methods, respectively. The results show that, the U3 Si2 mass thickness measured with the Simultaneous calibration coefficient is more closer to the chemical analyze value than the Separate calibration, without decrease the AI mass thickness measurement precision.

关 键 词：U3Si2-Al燃料元件 Γ射线 吸收系数 标样 

分 类 号：TL81[核科学技术—核技术及应用]