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electron channeling

electron channeling

When the electron beam enters a crystalline specimen to cause the Bragg reflection of a low-order reflection plane, two Bloch waves are produced. One Bloch wave is localized on atomic columns and the other Bloch wave is localized between atomic columns. Since the latter Bloch wave does not strike atomic columns, this wave is better transmitted in the crystal than the former Bloch wave. This phenomenon is termed "electron channeling."

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