Results 71 to 80 of about 642,183 (199)

Energy deposition by heavy ions: Additivity of kinetic and potential energy contributions in hillock formation on CaF2

open access: yes, 2014
The formation of nano-hillocks on CaF2 crystal surfaces by individual ion impact has been studied using medium energy (3 and 5 MeV) highly charged ions (Xe19+ to Xe30+) as well as swift (kinetic energies between 12 and 58 MeV) heavy ions.
Aumayr, F.   +19 more
core   +3 more sources

High energy heavy ions

open access: yesPhysics Bulletin, 1972
In August 1971, N7+ ions were accelerated by the Bevatron to hitherto unprecedented energies in the laboratory (Grunder, Hartsough and Lofgren 1971). The Bevatron, a 62 GeV proton synchrotron, has a long and spectacular history of research in high energy physics.
openaire   +2 more sources

Effects of heavy ions on electron temperatures in the solar corona and solar wind [PDF]

open access: yes
The effects of the reduction in the thermal conductivity due to heavy ions on electron temperatures in the solar corona and solar wind are examined. Large enhancements of heavy ions in the corona appear to be necessary to give appreciable changes in the ...
Nakada, M. P.
core   +1 more source

Unidirectional stripping extraction from a cyclotron which accelerates light as well as heavy ions

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2003
The VINCY Cyclotron (VINča CYclotron) is a multipurpose machine intended to accelerate light as well as heavy ions. To extract heavy ions with low energy and light ions an extraction system with stripping foil is used. Heavy ions with high energy will be
Jasna L. Ristić-Djurović   +1 more
doaj   +1 more source

Molecular Dynamics Simulation of Sympathetic Crystallization of Molecular Ions

open access: yes, 2003
It is shown that the translational degrees of freedom of a large variety of molecules, from light diatomic to heavy organic ones, can be cooled sympathetically and brought to rest (crystallized) in a linear Paul trap.
A. Fioretti   +31 more
core   +1 more source

Relativistic quantum dynamics in strong fields: Photon emission from heavy, few-electron ions

open access: yes, 2004
Recent progress in the study of the photon emission from highly-charged heavy ions is reviewed. These investigations show that high-$Z$ ions provide a unique tool for improving the understanding of the electron-electron and electron-photon interaction in
Anholt R   +99 more
core   +1 more source

Positive Heavy-Ion Sources [PDF]

open access: yes, 1985
Ion sources were developed soon after the discovery of ions in gas discharges in the late 1800s (Va 77). The initial uses were for mass spectrometry and for nuclear physics accelerators. In recent years, more versatile accelerator sources have been required to meet the need for a broad range of ion species, intensities, and duty factors and to fit the ...
openaire   +2 more sources

Adsorption of Copper, Zinc and Nickel Ions from Single and Binary Metal Ion Mixtures on to Chicken Feathers

open access: yesAdsorption Science & Technology, 2002
Certain industries often produce mixtures of heavy metal ions in their waste products. Because of the nature of heavy metal ions and the adsorption process, such metal ions can compete with each other for the sorption sites on an adsorbent during ...
Sameer Al-Asheh   +2 more
doaj   +1 more source

Progress report on the Heavy Ions in Space (HIIS) experiment [PDF]

open access: yes
One of the objectives of the Heavy Ions In Space (HIIS) experiment is to investigate heavy ions which appear at Long Duration Exposure Facility (LDEF) below the geomagnetic cutoff for fully-ionized galactic cosmic rays.
Adams, James H., Jr.   +3 more
core   +1 more source

Adsorption of Heavy Metal Ions from Multi-Ion Solutions Using Polysaccharide Hydrogels

open access: yesPolysaccharides
Adsorption has been found to be highly effective for removing heavy metals from polluted industrial wastewater. Adsorbents of biological origin, such as negatively charged polysaccharides, e.g., alginate and carrageenan, have attracted a lot of attention
Oshrat Levy-Ontman   +3 more
doaj   +1 more source

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