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High-harmonic generation in hydrogenic ions
Physical Review A, 1989We have calculated the frequency-dependent nonlinear susceptibilities of hydrogenic ions up to the 70th order of nonlinearity, in the framework of lowest-order perturbation theory. In this approximataion, the critical driving intensity, at which the radiated harmonic intensity of the (n+2)th order exceeds that of the nth order, is found to decrease ...
, Pan, , Taylor, , Clark
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Direct ion generation from swabs
Talanta, 2018Medical swabs are used for biofluid and tissue sampling in clinical applications. The use of medical swabs as electrospray ionization probes for direct mass spectrometric analysis is a novel and potentially widely applicable development. Here we discuss ion generation, characterize ionization behavior via microscopic videography and describe some ...
Alan K, Jarmusch +3 more
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Oxidative Generation of Diarylcarbenium Ion Pools
Organic Letters, 2006"Cation pools" of diarylcarbenium ions have been generated by the oxidative C-H bond dissociation of diarylmethanes using anodic oxidation. "Diarylcarbenium ion pools" thus generated react with various nucleophiles, such as allylsilanes, ketene silyl acetals, and aromatic compounds.
Okajima, M +4 more
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Ion Trap Mass Spectrometry of Externally Generated Ions
Analytical Chemistry, 1994This discussion provides background for consideration of the merits of ion trap MS in conjunction with an external ion source relative to a scanning beam-type form of mass analysis. Emphasis has been placed primarily on efficiency. However, a variety of other factors can be major considerations, depending upon the application. For example, the ion trap
Scott A. McLuckey +3 more
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An electrode for the coulometric generation of hydrogen ion
Talanta, 1975The anodic generation of hydrogen ion on bright platinum in 1.0M sodium perchlorate is not quantitative owing to the formation of a chemical species With oxidizińg properties, presumably a peroxydiperchlorate, but 100% current efficiency can be obtained in the anodic generation of hydrogen in 0.25M sodium hydrazinium sulphate, Na(N(2)H(5))SO(4).
W C, Hoyle, W F, Koch, H, Diehl
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Carbenium ion formation by fragmentation of electrochemically generated oxonium ions
Organic & Biomolecular Chemistry, 2018Fragmentation of electrochemically generated oxonium ions can be exploited to form carbenium ions at a low oxidation potential in the presence of a nucleophile such as allylsilane.
Anna Lielpetere, Aigars Jirgensons
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Use of a duoplasmatron ion source for negative ion generation
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2011Abstract The use of electronegative species as primary ions considerably enhances the emission of positive secondary ions in SIMS. Considering furthermore that negative primary ions can be required due to instrumental configurations (e.g. the Cameca NanoSIMS 50 requires an opposite polarity of the primary and secondary ions), O− ion bombardment is ...
L. Pillatsch +3 more
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A Comparison of Electrical, Fusion-Generated-Ion, and Fission-Generated-Ion ICF Drivers
1992In this paper, arguments are presented for various inertial confinement fusion laser systems (electrical driven laser, ion-generated by fusion reactions — driven laser, and ion-generated by fission reactions-driven laser) which show that high plant efficiencies can be achieved with low efficiency fission-generated-ion driven lasers 0.5%.
Mark A. Prelas, Frederick P. Boody
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Ion-cyclotron wave generation by planetary ion pickup
Journal of Atmospheric and Solar-Terrestrial Physics, 2007Ion-cyclotron waves play important roles in planetary magnetospheres and are diagnostic of the processes operating in the magnetosphere and of the composition of the plasma producing the waves. At Jupiter, Io's exosphere interacts with the corotating magnetospheric plasma.
C.T. Russell, X. Blanco-Cano
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Ion cyclotron wave generation in a two-ion plasma
Nuclear Fusion, 1973Exact calculation of the dispersion relation of a cold plasma shows that the plasma behaviour is different from that predicted by the usual approximate theory which neglects electron inertia in the low-density limit. For example, the limiting value of Ω for optimum coupling is different from 1, where Ω is the wave frequency divided by the ion cyclotron
H. Toyama, K. Matsuura
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