State-selective electron capture in atom-highly charged ion collisions

Electron capture in collisions of C4+ and C6+ with He has been studied in the low energy region (E<or approximately=20 keV amu-1) using the molecular orbital method. An ab initio calculation was performed to determine the interaction energies and wavefunctions. Two-electron translation factors were included in the scattering calculations so that the (nl) cross sections could be rigorously evaluated. For C4+He collisions, double electron capture to C2+(2s2) dominated the scattering of low collision energies, while at higher energies single capture to the C3+(2p) state was the dominant channel. For the C6+He system, the C5+(3l) product states varied rapidly with collision energy with the major contribution to the total cross section arising from the C5+(3d) state at low energies and the C5+(3p) state at high energies.

https://iopscience.iop.org/article/10.1088/0022-3700/17/21/005/pdf

Electron capture to (nl) states in collisions of C4+ and C6+ with He

Reviews are presented of the principal sources that are presently being utilized or can be potentially used for materials science applications, with particular emphasis placed on recent improvements to existing sources and new source developments that show promise for such applications. Specifically, status reports will be given on a number of state-of-the-art positive and negative ion sources routinely used for many materials research applications, including implantation, ion beam deposition, isotope separation, modification of surface properties, ion beam lithography, secondary ion mass spectrometry (SIMS), accelerator mass spectrometry (AMS), Rutherford backscattering spectroscopy (RBS), and proton-induced X-ray emission (PIXE).

Ion sources for accelerators in materials research

We present a review of the main results concerning the interaction between-laser and matter, in park. ticular the results concerning the state of charge, the energy and the spatial distribution of the plasma ions. From these results, we propose to use laser produced plasmas as sources of multiply-charged ions for heavy ion accelerators and we define the laser characteristics which would be required.

Laser Sources for Multiply-Charged Heavy Ions

A review is given of existing sources of highly charged heavy ions. The performance of the sources, predominantly of the P.I.G. type, are summarized and compared. Some mechanisms for the production of high charge states are described. There is a brief description of new developments, particularly of devices using ion trapping.

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High Charge State Heavy Ion Sources

Triggered spark source for multiply charged carbon ions applied to collision cross section measurements

H. J. Zwally

Papers

Development and Application of a Spark Source for Multiply Charged Carbon Ions