【摘要】 建立了液闪-α谱法测量241Pu/241Am原子数比得到痕量钚年龄的方法。基于钚、镅的分离,研究纳克量级钚样品的年龄测量技术。用该法分别对已知和未知年龄的钚样品进行了测量,结果表明,已知年龄的钚样品的测量结果与参考值基本一致。本工作建立的痕量钚年龄的测定技术有可能作为核保障和军备控制中钚材料的核查技术。更多还原

【Abstract】 Liquid scintillation counting combined with α-spectrometry through measuring 241Pu/241Am ratio to determine the age of trace Pu was studied.The technique was explored for the age determination of nanogram grade Pu sample on the basis of Pu/Am separation.The ages of two Pu samples—one with known and the other with unknown age were determined by the method.The determined age by the method is in agreement with the reference value.The established method for determining the age of trace Pu can be adopted in the verification activities of nuclear safeguards and nuclear arms control.更多还原