Motion of a Fast Ion in Periodic Potentials
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概要
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We present a quantum mechanical calculation of excitation probability of a fast ion passing through a crystal, when ion's excitation energy ΔE satisfies Okorokov's condition ΔE=hυ/a (h: Planck's constant, υ: the velocity of the ion, a: the atomic distance of the crystal). We find that the probability is a sinusoidal function of the distance and can reach unity, when the ion beam is mono-energetic. The wave length of the sinusoidal function is determined by the (low-order) Fourier component of the periodic potential of the crystal, thus providing us with a method to measure the latter experimentally.
- 社団法人日本物理学会の論文
- 1974-05-15
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