Organic SIMS with single massive gold projectile: Ion yield enhancement by silver metallization |
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Authors: | C Guillermier |
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Institution: | Center for Chemical Characterization and Analysis, Texas A&M University, College Station, TX 77843-3144, USA |
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Abstract: | The yield of CN from glycine rises from one CN per projectile impact to two when the sample is covered with a nominally 1 nm thick layer of silver. These yields were obtained for bombardment with Au4004+ projectile with 136 keV impact energy. A multitude of CN-based clusters, e.g. AgxOy(CN)z are produced concurrently. As a result, a total of three CN-based secondary ions are generated per projectile impact. The exceptionally high yield for CN is of interest for biological SIMS. |
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Keywords: | Yield enhancement Silver deposition Massive gold projectile Silver adduct ions |
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