Ion Emission from Water Ice Due to Energetic Particle Bombardment

Igor A. Wojciechowski; Shixin Sun; Christopher Szakal; Nicholas Winograd; Barbara J. Garrison

doi:10.1021/jp0373696

Ion Emission from Water Ice Due to Energetic Particle Bombardment

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

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

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 language	English (US)
Pages (from-to)	2993-2998
Number of pages	6
Journal	Journal of Physical Chemistry A
Volume	108
Issue number	15
DOIs	https://doi.org/10.1021/jp0373696
State	Published - Apr 15 2004

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry

Access to Document

10.1021/jp0373696

Cite this

@article{fb15dde4279c407c915c5d67c99c2871,

title = "Ion Emission from Water Ice Due to Energetic Particle Bombardment",

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.",

author = "Wojciechowski, {Igor A.} and Shixin Sun and Christopher Szakal and Nicholas Winograd and Garrison, {Barbara J.}",

year = "2004",

month = apr,

day = "15",

doi = "10.1021/jp0373696",

language = "English (US)",

volume = "108",

pages = "2993--2998",

journal = "Journal of Physical Chemistry A",

issn = "1089-5639",

publisher = "American Chemical Society",

number = "15",

}

TY - JOUR

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

AU - Wojciechowski, Igor A.

AU - Sun, Shixin

AU - Szakal, Christopher

AU - Winograd, Nicholas

AU - Garrison, Barbara J.

PY - 2004/4/15

Y1 - 2004/4/15

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=2342614944&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2342614944&partnerID=8YFLogxK

U2 - 10.1021/jp0373696

DO - 10.1021/jp0373696

M3 - Article

AN - SCOPUS:2342614944

SN - 1089-5639

VL - 108

SP - 2993

EP - 2998

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 15

ER -

Ion Emission from Water Ice Due to Energetic Particle Bombardment

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this