Ion Emission from Water Ice Due to Energetic Particle Bombardment

Igor A. Wojciechowski, Shixin Sun, Christopher Szakal, Nicholas Winograd, Barbara Jane Garrison

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Ion emission from water ice due to energetic particle bombardment is investigated in a combined molecular dynamics and tof-SIMS experimental study. Specifically, emission of water clusters A ±(H 2O) n, where A ± denotes positive alkali metal ions, Li +, Na +, K +, Cs + or negative halogen ions, F -, Cl -, I -, from frozen ice films is investigated. In the experiments, different concentrations of NaI and KI salts were dissolved in water before freezing. The influence of ion charge and concentration is investigated. Cationic clusters eject more effectively than anionic clusters in both the simulations and experiments. Although in most cases the increase of the salt concentration results in a higher absolute ion yield, this dependence is rather complex and is discussed in terms of ion pairing and clustering in the original solution and during emission.

Original languageEnglish (US)
Pages (from-to)2993-2998
Number of pages6
JournalJournal of Physical Chemistry A
Volume108
Issue number15
DOIs
StatePublished - Apr 15 2004

Fingerprint

ion emission
Ice
energetic particles
bombardment
ice
Ions
Water
water
salts
ions
ion charge
ion concentration
halogens
alkali metals
freezing
Salts
secondary ion mass spectrometry
metal ions
Alkali Metals
Halogens

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

Cite this

Wojciechowski, Igor A. ; Sun, Shixin ; Szakal, Christopher ; Winograd, Nicholas ; Garrison, Barbara Jane. / Ion Emission from Water Ice Due to Energetic Particle Bombardment. In: Journal of Physical Chemistry A. 2004 ; Vol. 108, No. 15. pp. 2993-2998.
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Wojciechowski, IA, Sun, S, Szakal, C, Winograd, N & Garrison, BJ 2004, 'Ion Emission from Water Ice Due to Energetic Particle Bombardment', Journal of Physical Chemistry A, vol. 108, no. 15, pp. 2993-2998. https://doi.org/10.1021/jp0373696

Ion Emission from Water Ice Due to Energetic Particle Bombardment. / Wojciechowski, Igor A.; Sun, Shixin; Szakal, Christopher; Winograd, Nicholas; Garrison, Barbara Jane.

In: Journal of Physical Chemistry A, Vol. 108, No. 15, 15.04.2004, p. 2993-2998.

Research output: Contribution to journalArticle

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T1 - Ion Emission from Water Ice Due to Energetic Particle Bombardment

AU - Wojciechowski, Igor A.

AU - Sun, Shixin

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AU - Garrison, Barbara Jane

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