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Igor Bray

Researcher at Curtin University

Publications -  590
Citations -  10309

Igor Bray is an academic researcher from Curtin University. The author has contributed to research in topics: Ionization & Scattering. The author has an hindex of 44, co-authored 566 publications receiving 9408 citations. Previous affiliations of Igor Bray include Los Alamos National Laboratory & University of Maryland, College Park.

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Two-center convergent close-coupling approach to positron–helium-ion collisions

TL;DR: In this article, the two-center convergent close-coupling approach of Kadyrov and Bray was applied to positron scattering on the singly charged helium ion.
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Nondipole transitions in atom excitation by ultrashort laser pulses

TL;DR: In this paper, the perturbation approach is used to estimate the transition amplitudes in the regime of weak excitation for sufficiently short pulses, and it is shown that ultrashort laser pulses are able to excite nondipole transitions.
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Cross sections for excitation of pseudostates

TL;DR: In this article, the authors investigated the behavior of the cross sections for excitation of all of the states used in the convergent close-coupling (CCC) formalism, and found that the cross section for exciting the positive-energy states is approximately zero near-threshold and remains so until a further energy, equal to the energy of the state, is added to the system.