Secondary electron emission from Au by medium energy atomic and molecular ions
書誌事項
- 公開日
- 2002-06
- 権利情報
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- https://www.elsevier.com/tdm/userlicense/1.0/
- https://www.elsevier.com/legal/tdmrep-license
- DOI
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- 10.1016/s0168-583x(02)00877-7
- 公開者
- Elsevier BV
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説明
Number distributions of secondary electrons emitted from a Au metal surface have been measured for atomic and molecular ions of H þ ,H e þ ,C þ ,N þ ,O þ ,H þ ,H þ , HeH þ ,C O þ and O þ in the energy range 0.3-2.0 MeV. The emission statistics obtained are described fairly well by a Pfunction. The P� o parameter b, determining the distribution shape, is found to decrease monotonously with increasing emission yield c, revealing a surprising relationship of bc � 1 over the different projectile species and impact energies. This finding supports certainly the electron cascading model. Also we find a strong negative molecular effect for heavier molecular ions, showing a significant reduction of c com- pared to the estimated values using constituent atomic projectile data. 2002 Elsevier Science B.V. All rights reserved.
収録刊行物
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- Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 193 (1-4), 626-631, 2002-06
Elsevier BV
