| 单词 |
low-energy positron diffraction |
| 释义 |
low-energy positron diffraction
low-energy positron diffraction[′lō ‚en·ər·jē ′päz·ə‚trän di‚frak·shən] (solid-state physics) A technique for studying the atomic structure of solid surfaces in which a narrow beam of low-energy monoenergetic positrons is made to strike a solid surface, and the diffracted beams in certain directions that are permitted by the regular array of surface atoms are observed. Abbreviated LEPD. AcronymsSeeLEPD |
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