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为准确测量95Y的衰变数据,需从新生成的裂变产物中提取出放化纯的95Y样品。94Y(T1/2=18.7min)与95Y(T1/2=10.3min)半衰期接近,从裂变产物中化学提取95Y时,很难去除94Y。95Y的母核95Sr的半衰期(T1/2=24.3s)较94Y的母核94Sr的半衰期(T1/2=75.1s)短,因此,将235U靶经短时间中子辐照
In order to accurately measure the 95Y decay data, we need to extract the radiochemical pure 95Y sample from the newly generated fission products. 94Y (T1 / 2 = 18.7 min) is near the half-life of 95Y (T1 / 2 = 10.3 min) and 94Y is very difficult to remove chemically from the fission product. The half-life (T1 / 2 = 24.3s) of the 95Sr parent nucleus 95Sr is shorter than that of the 94Y parent nucleus 94Sr (T1 / 2 = 75.1s)