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Correlated electron processes in ion-atom collisions

Douglas W. McColm

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Abstract

This final report covers the work carried out under the LLNL Contract P.O. Number B055762, Subcontractor Regents University of California at Davis. The research carried out under this contract investigated electron processes occurring in collisions between heavy ions and atoms. The doubly-differential secondary electron yield following the impact of 3.5 to 8 MeV/uU{sup q+}(q = 38,68) ion impact on thin carbon foil targets has been investigated experimentally. The absolute electron emission yields were determined for ejection angles varied between 22.5{degree} and 157{degree} and electron energies ranging from 10 eV to 8 keV. The electron spectra are compared to previous investigations and new experimental data using lighter ion impact at MeV projectile energies. 14 refs., 5 figs.

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What this paper is about

This final report covers the work carried out under the LLNL Contract P.O. Number B055762, Subcontractor Regents University of California at Davis. The research carried out under this contract investigated electron processes occurring in collisions between heavy ions and atoms. The doubly-differential secondary electron yield following the impact of 3.5 to 8 MeV/uU{sup q+}(q = 38,68) ion impact on thin carbon foil targets has been investigated experimentally. The absolute electron emission yields were determined for ejection angles varied between 22.5{degree} and 157{degree} and electron energies ranging from 10 eV to 8 keV. The electron spectra are compared to previous investigations and new experimental data using lighter ion impact at MeV projectile energies. 14 refs., 5 figs.

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Available abstract

This final report covers the work carried out under the LLNL Contract P.O. Number B055762, Subcontractor Regents University of California at Davis. The research carried out under this contract investigated electron processes occurring in collisions between heavy ions and atoms. The doubly-differential secondary electron yield following the impact of 3.5 to 8 MeV/uU{sup q+}(q = 38,68) ion impact on thin carbon foil targets has been investigated experimentally. The absolute electron emission yields were determined for ejection angles varied between 22.5{degree} and 157{degree} and electron energies ranging from 10 eV to 8 keV. The electron spectra are compared to previous investigations and new experimental data using lighter ion impact at MeV projectile energies. 14 refs., 5 figs.

Key concepts: Ion, Projectile, Atomic physics, Electron, Yield (engineering), Physics, Spectral line, Electron capture

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