Solid-state effects on Coulomb capture and x-ray cascade of negative muons
Solid-state effects on Coulomb capture and x-ray cascade of negative muons
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DOI：
10.1103/physreva.59.3343
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发表时间：
1999-05-01
影响因子：
2.9
通讯作者：
Naumann, RA
中科院分区：
文献类型：
--
作者：
Daniel, H;Hartmann, FJ;Naumann, RA
库仑捕获和随后的介子x射线级联已经测量了固体目标的选择：三种同素异形体的硒，氯化镁有和没有结晶水，单相Nb-Ta合金在三种不同的化学计量比。在Se较高水平的交叉跃迁x射线强度上发现了微小但具有统计学意义的差异。观察到氯化镁与水的交叉跃迁强度有相当大的增强，这归因于氢的转移。Nb-Ta的Lyman强度模式随组分变化不显著；每个原子的捕获率被测量为恒定在5%以内。[s1050 - 2947(99) 08103 - 2]。
Coulomb capture and the subsequent muonic x-ray cascade have been measured for a selection of solid-state targets: three allotropic forms of selenium, magnesium chloride with and without crystal water, and single-phase Nb-Ta alloys in three different stoichiometric ratios. Small but statistically significant differences were found in higher-level crossover transition x-ray intensities in Se. A rather large enhancement of crossover transition intensities was observed in magnesium chloride with water, which is ascribed to transfer from hydrogen. No significant variations with composition were found in the Lyman intensity patterns from Nb-Ta; the per-atom capture ratio was measured to be constant within 5%. [S1050-2947(99)08103-2].