High-power laser plasma source of nuclear reaction

Aleksandr A. Andreev; Alexander V. Charukchev; Vladimir E. Yashin

doi:10.1117/12.418788

12 March 2001 High-power laser plasma source of nuclear reaction

Aleksandr A. Andreev, Alexander V. Charukchev, Vladimir E. Yashin

Proceedings Volume 4352, Laser Optics 2000: Ultrafast Optics and Superstrong Laser Fields; (2001) https://doi.org/10.1117/12.418788
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

During the interaction of picosecond laser pulse of intensity 5 X 10¹⁸ W/cm² with the target we observed a MeV energy proton beam, confined in a cone angle approximately 30 degree(s) and directed normal to the target surface. Laser conversion efficiency into fast ions energy (at the front side of the target) was approximately 1% (and near 5% at the rear). The simulations and optimization on ion acceleration is discussed here. The laser intensity being approximately 10¹⁹ W/cm², nuclear reactions proceed in the target, particularly resulting in production of the (gamma) -line radiation. In light materials irradiated by the laser beam the (gamma) -photon yield reaches 10^-4 number of fast ions. For nuclear excitation we used also X-ray pump from laser plasma to illuminate film mixture of KBr and Rb⁸⁴. Near 10⁴, 200 Kev decay (gamma) -photons from excited isomer nuclei can be produced per laser shot.

Citation Download Citation

Aleksandr A. Andreev, Alexander V. Charukchev, and Vladimir E. Yashin "High-power laser plasma source of nuclear reaction", Proc. SPIE 4352, Laser Optics 2000: Ultrafast Optics and Superstrong Laser Fields, (12 March 2001); https://doi.org/10.1117/12.418788

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