Comment on an improved critical angle eq
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Zhu Lin Zhang; Lai Zhang; Karur R. Padmanabhan
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Article
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2011
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Elsevier Science
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English
β 162 KB
Recently, Li-Ping Zheng et al., proposed an improved critical angle equation for ion channeling [1,2]. In the comment, we show that the equation leads to a physically unrealistic result. If an ion (atomic number Z, atomic mass M) moving with energy E enters a crystal (atomic number z, atomic mass m