N
Nicholas Winograd
Researcher at Pennsylvania State University
Publications - 439
Citations - 19157
Nicholas Winograd is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Ion & Secondary ion mass spectrometry. The author has an hindex of 68, co-authored 438 publications receiving 18319 citations. Previous affiliations of Nicholas Winograd include Case Western Reserve University & University of Duisburg-Essen.
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Dynamic Reactive Ionization with Cluster Secondary Ion Mass Spectrometry
TL;DR: The results show that it is possible to dynamically maintain optimum ionization conditions during depth profiling by proper adjustment of the water vapor pressure, and the role of surface chemistry and dynamic reactive ionization of organic molecules in increasing the secondary ion yield is discussed.
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Coverage‐dependent Bond Length of Chlorine Adsorbed on Cu{111}
TL;DR: In this article, the adsorption of Cl 2 on Cu{111} at 300 K has been studied using shadowcone-enhanced secondary ion mass spectrometry (SIMS).
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Molecular dynamics simulations of sputtering of organic overlayers by slow, large clusters
TL;DR: In this article, the ion-stimulated desorption of organic molecules by impact of large and slow clusters is examined using molecular dynamics (MDs) computer simulations using a monolayer of benzene deposited on Ag{1 1 1}, is irradiated with projectiles composed of thousands of noble gas atoms having a kinetic energy of 0.1-20 eV/atom.
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Emission of neutral molecules from ion-bombarded thiol self-assembled monolayers
TL;DR: In this paper, the authors investigated ion-stimulated desorption of neutral molecules emitted from 8 keV Ar + ion-bombarded self-assembled monolayers (SAMs) of phenethyl mercaptan (PEM) C 6 H 5 CH 2 CH 2 -SH and 2-(4 ′ -methyl-biphenyl-4yl)-ethanethiol (BP2) CH 3C 6 H 4 C 6H 4 CH 2
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Strong field ionization of β-estradiol in the IR: Strategies to optimize molecular postionization in secondary neutral mass spectrometry
TL;DR: In this paper, strong field laser photoionization of β-estradiol in the 1013-1015 W/cm2 intensity range at wavelengths between 1200 and 2000 nm was examined for both evaporated gas phase molecules and neutral species sputtered from a solid surface under bombardment with 20 keV C60+ ions.