Radionuclide ~(90 )Y is an importantβ-ray emitter for therapeutic applications and the accurate determination of the half-life of ~(90 )Y is of great significance to theoretical research and practical application.At present,the half-life of ~(90 )Y has been reported in a large number of literatures,but the results are not accurate,ranging from 63.46hto 64.6h.In this paper,the principles and processes of half-life measurement of ~(90 )Y by liquid scintillation spectrometer(LSC)was introduced,and the uncertai...
90 Y为元素钇的一种放射性同位素,90 Y通过两个分支的衰变成稳定核素90Zr。其中放出γ射线的分支比仅占0.011 5%,因此90 Y通常被认为是纯β核素,β射线的最大能量为2.27 MeV,衰变纲图示于图1[1]。美国国家标准局(NationalInstitute of Standards and Technology,NIST)报道的90
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