新重丰中子同位素~（175）Er的合成和γ衰变

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用１４ＭｅＶ中子轰击天然镜靶，通过１７６Ｙｂ（ｎ，２ｐ）１７５Ｅｒ反应，首次合成了新同位素１７５Ｅｒ．利用γ（Ｘ）谱学方法，对１７５Ｅｒ的活性进行了观测，发现了能量为７６．５，１２０．９，１２３．７，１２８．５，２２７．３，２３４．０，２８１．４，１１６７．５ｋｅＶ半衰期为１．２±０．３ｍｉｎ的八条新γ射线，并指定为１７５Ｅｒ的β－衰变．建立了１７５Ｅｒ的部分衰变纲图

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