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Estimations of electron-positron pair production at high-intensity laser interaction with high-Z targets

D. A. Gryaznykh, Y. Z. Kandiev, V. A. Lykov

physics.atom-pharXiv:physics/9909034

Abstract

Electron-positron pairs' generation occuring in the interaction of 1018-1020~W/cm2 laser radiation with high-Z targets are examined. Computational results are presented for the pair production and the positron yield from the target with allowance for the contribution of pair production processes due to electrons and bremsstrahlung photons. Monte-Carlo simulations using the PRIZMA code confirm the estimates obtained. The possible positron yield from high-Z targets irradiated by picosecond lasers of power 102-103~TW is estimated to be 109-1011.

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