【摘 要】
：
基于HI-13串列加速器的93Nb(n,2n)92Nbg反应截面AMS绝对测量方法已经建立。测量灵敏度(空白样品本底)可达9×10-11。但是辐照样品中92Nbg的含量太低,采用绝对测量的方法,误差
【机 构】
：
广西大学,中国原子能科学研究院核物理研究所,
论文部分内容阅读
基于HI-13串列加速器的93Nb(n,2n)92Nbg反应截面AMS绝对测量方法已经建立。测量灵敏度(空白样品本底)可达9×10-11。但是辐照样品中92Nbg的含量太低,采用绝对测量的方法,误差较大。由于94Nb在样品制备、测量方法、光路调试等条件极为相似,通过AMS测量94Nb的系统误差去模拟92Nbg的系统误差是解决92Nbg相对测量的有效途径。安装新的离子源后,引出效率和引
The 93Nb (n, 2n) 92Nbg reaction cross section AMS absolute measurement method based on the HI-13 tandem accelerator has been established. Measurement sensitivity (blank sample background) up to 9 × 10-11. However, the content of 92Nbg in the irradiated sample is too low, and the method of absolute measurement has larger error. As 94Nb is very similar in sample preparation, measurement method and optical path debugging, measuring the systematic error of 94Nb by AMS to simulate the systematic error of 92Nbg is an effective way to solve the relative measurement of 92Nbg. After installing a new ion source, leads to efficiency and lead
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