英语词汇“secondary ion mass spectrometer”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	secondary ion mass spectrometer
释义	secondary ion mass spectrometer secondary ion mass spectrometer [′sek·ən‚der·ē ′ī‚än ′mas spek′tram·əd·ər] (engineering) An instrument for microscopic chemical analysis, in which a beam of primary ions with an energy in the range 5-20 kiloelectronvolts bombards a small spot on the surface of a sample, and positive and negative secondary ions sputtered from the surface are analyzed in a mass spectrometer. Abbreviated SIMS. Also known as ion microprobe; ion probe.
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