Spatial distribution of ions in a linear octopole radio-frequency ion trap in the space-charge limit [PDF]
, 2012 We have explored the spatial distribution of an ion cloud trapped in a linear octopole radio-frequency (rf) ion trap. The two-dimensional distribution of the column density of stored silver dimer cations was measured via photofragment-ion yields as a function of the position of the incident laser beam over the transverse cross section of the trap.
arxiv +1 more source
Ion transport through cell membrane channels [PDF]
arXiv, 2007 We discuss various models of ion transport through cell membrane channels. Recent experimental data shows that sizes of ion channels are compared to those of ions and that only few ions may be simultaneously in any single channel. Theoretical description of ion transport in such channels should therefore take into account interactions between ions and ...
arxiv
Ion beam sputtering of silicon: Energy distributions of sputtered and scattered ions [PDF]
arXiv, 2019 The properties of sputtered and scattered ions are studied for ion beam sputtering of Si by bombardment with noble gas ions. The energy distributions in dependence on ion beam parameters (ion energy: 0.5 - 1 keV; ion species: Ne, Ar, Xe) and geometrical parameters (ion incidence angle, polar emission angle, scattering angle) are measured by means of ...
arxiv
Hydrogen-ion concentration studies of solutions used for intravenous medication and clinical investigation [PDF]
, 1922 John R. Williams, M. Swett
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Laser Ion Acceleration Toward Future Ion Beam Cancer Therapy - Numerical Simulation Sudy- [PDF]
Published in LASER THERAPY, vol. 22, No. 2 (2013) pp. 103-114, 2013 Ion beam has been used in cancer treatment, and has a unique preferable feature to deposit its main energy inside a human body so that cancer cell could be killed by the ion beam. However, conventional ion accelerator tends to be huge in its size and its cost.
arxiv
Simultaneous Ionisation and Excitation by Foreign Ions in a Gaseous Mixture [PDF]
, 1927 O. S. Duffendack, Hillary L. Smith
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Nonlinear theory of the modulational instability at the ion-ion hybrid frequency and collapse of ion-ion hybrid waves in two-ion plasmas [PDF]
arXivWe study the dynamics of two-dimensional nonlinear ion-ion hybrid waves propagating perpendicular to an external magnetic field in plasmas with two ion species. We derive nonlinear equations for the envelope of electrostatic potential at the ion-ion hybrid frequency to describe the interaction of ion-ion hybrid waves with low frequency acoustic-type ...
arxiv
The activation of tryptophanase apo-enzyme by potassium, ammonium and rubidium ions [PDF]
, 1954 Frank Charles Happold, A Struyvenberg
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arXivThis work aims to find ion trap geometry for a high-quality ion trap mass analyzer that minimizes mass shift and is easy to fabricate. The theoretical procedure of the ion trap mass shift evaluation is developed, which provides a quantitative criterion of the mass shift (ion ejection delay in comparison with ideal ion trap) for the correct comparison ...
arxiv