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Applied Surface Science | 2003

Big molecule ejection - SIMS vs. MALDI

Barbara J. Garrison; Arnaud Delcorte; Leonid V. Zhigilei; Tatiana Itina; Kristin D. Krantzman; Yaroslava G. Yingling; Carolyn M. McQuaw; Edward J. Smiley; Nicholas Winograd

Using the results of molecular dynamics (MD) simulations, we discuss the question of whether the observed difference in mass limits in secondary ion mass spectrometry (SIMS) and matrix assisted laser desorption ionization (MALDI) are inherently related to the underlying physics of ejection or rather insufficient experimentation. The simulations show clearly that the physics of large molecule emission in SIMS and MALDI is very different. Consequently, we conclude that larger molecules can be ejected in MALDI than in SIMS.


Journal of Physical Chemistry B | 2004

Microscopic Insights into the Sputtering of Ag{111} Induced by C60 and Ga Bombardment

Zbigniew Postawa; Bartlomiej Czerwinski; Marek Szewczyk; Edward J. Smiley; Nicholas Winograd; Barbara J. Garrison


Analytical Chemistry | 2003

Enhancement of sputtering yields due to C60 versus Ga bombardment of Ag[111] as explored by molecular dynamics simulations.

Zbigniew Postawa; Bartlomiej Czerwinski; Marek Szewczyk; Edward J. Smiley; Nicholas Winograd; Barbara J. Garrison


Applied Surface Science | 2006

Coarse-grained molecular dynamics studies of cluster-bombarded benzene crystals

Edward J. Smiley; Zbigniew Postawa; Igor A. Wojciechowski; Nicholas Winograd; Barbara J. Garrison


Analytical Chemistry | 2007

Effect of cluster size in kiloelectronvolt cluster bombardment of solid benzene.

Edward J. Smiley; Nicholas Winograd; Barbara J. Garrison


Applied Surface Science | 2004

Sputtering of Ag under C60+ and Ga+ projectile bombardment

Shixin Sun; Christopher Szakal; Edward J. Smiley; Zbigniew Postawa; A. Wucher; Barbara J. Garrison; Nicholas Winograd


Applied Surface Science | 2008

Angle of incidence effects in a molecular solid

Kathleen E. Ryan; Edward J. Smiley; Nicholas Winograd; Barbara J. Garrison


Applied Surface Science | 2008

Combined simulations and analytical model for predicting trends in cluster bombardment

Michael F. Russo; Kathleen E. Ryan; B. Czerwinski; Edward J. Smiley; Zbigniew Postawa; Barbara J. Garrison


Journal of Physical Chemistry C | 2007

Quadratic friction model for cluster bombardment of molecular solids

Barbara J. Garrison; Kathleen E. Ryan; Michael F. Russo; Edward J. Smiley; Zbigniew Postawa


Applied Surface Science | 2008

Friction model to describe cluster bombardment

Kathleen E. Ryan; Michael F. Russo; Edward J. Smiley; Zbigniew Postawa; Barbara J. Garrison

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