Statistical equilibrium in particle channeling
Statistical equilibrium in particle channeling
复制标题
粒子通道的统计平衡
DOI：
10.1063/1.97694
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
J. Mannaerts
中科院分区：
文献类型：
--
作者：
B. Davidson;L. Feldman;J. Bevk;J. Mannaerts
我们使用了一种独特的样品结构，由夹在Si（100）晶格内的Ge外延薄膜组成，以探索粒子通道中统计平衡的条件。非平衡的迹象来自于非正常角度扫描的强烈不对称性。我们发现1.8 MeV He粒子沿着Si < 110 >方向通道时，达到统计平衡所需的深度为~ 2200 A。该测量为各种近地表应用中通道实验的解释提供了有用的指导。
We have used a unique sample configuration consisting of thin, epitaxial films of Ge sandwiched within a Si(100) lattice to explore the conditions for statistical equilibrium in particle channeling. Indications of nonequilibrium came about from a strong asymmetry in the off‐normal angular scans. We find the depth necessary to achieve statistical equilibrium to be ∼2200 A for 1.8 MeV He particle channeling along the Si〈110〉 direction. This measurement provides a useful guide for the interpretation of channeling experiments in a variety of near‐surface applications.