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Ion-beam deposition with positive and negative ions
Surface and Coatings Technology, 1996Abstract Recently, we have developed a new apparatus for low-energy, mass-analysed, dual-ion-beam direct deposition. The facility has two sets of ion sources, sector-type 90 ° mass analysing magnets and beam lines including deceleration lenses for the positive and negative ions.
K. Fujii +5 more
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Positive Ion Chemistry of Elemental Fluorine
Journal of the American Chemical Society, 1997F2•+ ions have been generated in the external ion source of a FT-ICR mass spectrometer, and their reactivity with a choice of neutrals, ranging from noble gases to polyatomic molecules, has been investigated. With the exception of He and Ne, all neutrals react with F2•+ at the collision controlled limit, yielding predominantly electron transfer and ...
CIPOLLINI, Romano +2 more
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Photoabsorption of Positive Ions
1999The dual laser produced plasma (DLP) technique has been applied very successfully to the generation of photoabsorption spectra of ions, atoms and corrosive species such as halogens.1-5 In this method, one high power laser pulse, usually from a Q-switched laser, is used to produce a plasma of the ions of interest while a second pulse is tightly focused ...
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Satellite Positive-Ion-Beam System
Journal of Spacecraft and Rockets, 1976Abstract : The Satellite Positive Ion Beam System (SPIBS) instrument is being developed as a charge ejection payload for the Air Force Satellite P78-2 (Satellite Charging At High Altitude). SPIBS will allow controlled ejection of xenon ions as part of the systematic investigation of satellite charging.
T. MASEK, H. COHEN
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Excitation of positive ions by heavy particles
Physical Review A, 1988The Coulomb-Born approximation has been used to study the excitation of positive ions by heavy-particle impact. Slater-type wave functions are used for the ionic target states. This choice enables us to calculate the excitation rate coefficients between arbitrary initial and final states.
, Deb, , Bhattacharyya
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Positive Ion Photodissociation.
1980Abstract : Photodissociation of a variety of hydrocarbon ions and other ions of atmospheric interest was examined, both to obtain optical-spectroscopic, and also structural information. Techniques for obtaining time- and wavelength-resolved fluorescence information about ions were applied to several species.
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Waves in positive-ion/negative-ion plasmas
International Journal of Electronics, 1986J. J. Thomson and G. P. Thomson's theory of waves in a positive-ion/negative-ion plasma is extended to include collisional and Landau damping, and the effect of recombination is considered briefly. Some possible effects of drift instabilities in striated positive columns in electronegative gases are also discussed, together with the use of the Debye ...
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Photodissociation of positive ions
1978Thesis (Ph.D.) - La Trobe University, 1978.; Submitted to the Department of Physical Chemistry.
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Photoionization cross sections of positive ions
Physical Review A, 1988Recent experiment on ${\mathrm{K}}^{+}$ is compared with measurements on neutral K to test the suggestion that inner-shell photoionization cross sections are largely unaffected by the removal of outer-shell electrons.
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