101Mo γ射线发射几率测定

Measurement of γ-ray Emission Probabilities for 101Mo

  • 摘要: 101Mo是裂变燃耗诊断的重要核素之一,它的半衰期短,准确测定101Mo核衰变数据的难度大。本工作采用强度平衡法和全程记录法测量101Mo和101Tc的γ射线发射几率Pγ101Mo Pγ的强度平衡法测量结果比全程记录法的测定结果高5%,而101Tc Pγ的两种方法测定结果在不确定度范围内一致。有关101Mo的γ射线发射几率测量方法及其测定值有待进行进一步研究和测定。

     

    Abstract: 101Mo is one of the key nuclides in diagnosing fission burn-up. However, it’s difficult to measure its nuclear decay data due to its short half-life. Present study concerns in the measurements of γ-ray emission probabilities, Pγ, of 101Mo and 101Tc using the balance of scheme method and the entire process recording. The Pγ of 101Mo by the entire process recording is about 5% lower than that by using the balance of scheme method. The Pγ of 101Tc using the two methods agree each other very well. So, it seems the γ-ray emission probabilities as well as measurement method still need study further for 101Mo.

     

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