%0 Journal Article
%T Enhancement of β+-Decay Rate of 22Na in Metal Pd at Low Temperature
%A 连钢
%A 苏俊
%A 王宝祥
%A 蒋超
%A 白希祥
%A 曾晟
%A 郑永男
%A 朱升云
%A 竺礼华
%A 柳卫平
%A 李志宏
%A 王友宝
%A 郭冰
%A 李云居
%A 秦星
%J 中国物理快报
%D 2008
%I 
%X Temperature dependence of nuclear decays in metallic environments is a controversial issue. We measured the temperature dependence of the β^＋-decay half-life of ^22Na implanted into the metal host of palladium. It is found that the β^＋-decay half-life of ^22Na in the metal Pd cooled to T = 15 K is shorter by 0.46（14）% than that at room temperature. The result is consistent in sign with, but dearly smaller than, the estimated one by the Debye model.
%K 核衰变
%K β衰变
%K 钠
%K 钯
%K 低温环境
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=27F2D9D144C7F9054D58A783151BD4F6&yid=67289AFF6305E306&vid=C5154311167311FE&iid=CA4FD0336C81A37A&sid=09ABD5535D9B6D45&eid=AA76E167F386B6B3&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=24