【摘 要】
：
采用直接γ能谱法,利用~(252)Cf自发裂变谱中子辐照金属铀片样品进行产额测量。样品为15mm见方、235U丰度为90.2%的铀金属片,质量为0.7g,用纯铝箔紧密包裹待辐照的样品。铀片
【机 构】
：
核数据重点实验室,中国核数据中心,西北核技术研究所,
论文部分内容阅读
采用直接γ能谱法,利用~(252)Cf自发裂变谱中子辐照金属铀片样品进行产额测量。样品为15mm见方、235U丰度为90.2%的铀金属片,质量为0.7g,用纯铝箔紧密包裹待辐照的样品。铀片辐照完毕后采用HPGe谱仪测量其γ能谱,对每个样品跟踪测量约2个月,以~(140)Ba为基准,得到了比较准确可靠的相对产额测量结果。
The direct gamma spectrometry was used to measure the yield of uranium metal samples irradiated by ~ (252) Cf spontaneous fission spectra. The sample was 15 mm square, 235 U uranium metal with an abundance of 90.2% and a mass of 0.7 g. The sample to be irradiated was tightly wrapped with pure aluminum foil. After the irradiation of uranium flake, the γGe spectrum was measured by HPGe spectrometer. The trace of each sample was measured for about 2 months. Based on ~ (140) Ba, comparatively accurate and reliable relative yield measurements were obtained.
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