New Technique for the Measurement of Lifetimes of Heavy-Ion Inner-Shell Vacancies
New Technique for the Measurement of Lifetimes of Heavy-Ion Inner-Shell Vacancies
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测量重离子内壳空位寿命的新技术
DOI：
10.1103/physrevlett.33.807
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发表时间：
1974
影响因子：
8.6
通讯作者：
D. Evers
中科院分区：
文献类型：
--
作者：
H. Betz;F. Bell;H. Panke;G. Kalkoffen;M. Welz;D. Evers
我们报告了一种新技术，用于测量穿过薄固体目标的重离子射弹内壳空位的短寿命（${10}^{\ensuremath{-}14}$秒）。该技术适用于射弹 X 射线的产量不与目标厚度成比例增加的情况。已发现 $K\ensuremath{\alpha}$ 的生命周期值为 1.5\ifmmode\times\else\texttimes\fi{}${10}^{\ensuremath{-}14}$ 和 3.3\ifmmode\times\else\texttimes\fi{}${10}^{\ensuremath{-}14}$ 秒$K\ensuremath{\beta}$ 分别在高度剥离的硫离子中进行跃迁。
We report a new technique for the measurement of short lifetimes (${10}^{\ensuremath{-}14}$ sec) of innershell vacancies in heavy-ion projectiles moving through thin, solid targets. The technique is applicable whenever the yield of projectile x rays does not increase in proportion to target thickness. Lifetime values of 1.5\ifmmode\times\else\texttimes\fi{}${10}^{\ensuremath{-}14}$ and 3.3\ifmmode\times\else\texttimes\fi{}${10}^{\ensuremath{-}14}$ sec have been found for $K\ensuremath{\alpha}$ and $K\ensuremath{\beta}$ transitions, respectively, in highly stripped sulfur ions.