Crater formation by single ions, cluster ions and ion “showers”
نویسندگان
چکیده
منابع مشابه
Crater formation and sputtering by cluster impacts
A multiscale computational model coupling atomistic molecular dynamics simulations with continuum elasticity was used for studying craters formed on Si surfaces by Ar cluster impacts, with energies of 20–50 eV/atom. The results were confirmed by atomic force microscopy/transmission electron microscopy. They show that on a Si (1 0 0), craters are nearly triangular in cross-section, with the face...
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Chromium/phosphorus binary cluster ions, [Cr(n)P(m)](+/-), produced by laser (532nm) ablation on a tablet of well-mixed chromium and red phosphorus powder, were studied with a home-built tandem time-of-flight (TOF) mass spectrometer. The clusters thus formed are mostly rich in phosphorus. There is an odd-even oscillation in the intensity of the [CrP(m)](+) series, i.e. the mass peaks of even m ...
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Secondary ion mass spectra have been measured for the first time for a liquid ethanol target bombarded by 2.0 MeV He(+) ions. Positive and negative ion spectra exhibit evidently a series of cluster ions of the forms [(EtOH)(n)H](+) and [(EtOH)(n)-H](-), respectively, in addition to light fragment ions from intact parent molecules. It was found that these cluster ions are produced only from liqu...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
سال: 2012
ISSN: 0168-583X
DOI: 10.1016/j.nimb.2011.01.104