利用HPGeγ谱仪测量了多个年龄段的HEU样品,获得了样品中N(214Bi)/N(234 U)的值,从而计算得到了HEU的年龄,其测量结果与参考值吻合较好。最后结合实验结果,系统分析了其它可能用于测量高浓铀年龄的方法,并对各种方法的可行性进行了分析。结果表明,214Bi/234 U比值法是最佳的选择。N(231Pa)/N(235 U)法中对γ谱如何解谱还需作进一步研究。
The HEU sample was measured by HPGe γ-spectrometry. By analyzing the detected γ-spectrum, the N(214Bi)/N(234U) of the HEU sample was acquired, and the age of HEU samples was determined, which was coincided with the reference value. At last, the other potential methods of determining the age of HEU were analyzed systematically. N(214Bi)/N(234U) is more feasible, and algorithm of spectrum-decomposition in N(231 Pa)/N(235U) should be studied further.
参考文献
[1] | CONG T N.Nucl Instr&Meth,2005,B229:103. |
[2] | CONG T N,JOZSEF Z.Nucl Instr&Meth,2006,B243:187. |
[3] | CONG T N,JOZSEF Z.Nucl Instr&Meth,2006,B246:417. |
[4] | 吕学升.γ能谱法测量浓缩铀样品年龄的方法研究[D].北京:中国原子能科学研究院,2007,27. |
[5] | 吕学升,金惠民,刘大鸣,等.核化学与放射化学,2008,30(4):243. |
[6] | 何周国,李安利,范显华,等.核化学与放射化学,2005,27(2):91. |
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