Investigation of the Yield of the Nuclear Reaction $${}^{{11}}$$B($${p,3\alpha}$$ ) Initiated by Powerful Picosecond Laser Radiation

Le résumé fourni par la source

The results obtained by experimentally and theoretically studying the yield of the promising nuclear-fusion reaction $${}^{11}$$ B( $$p,3\alpha$$ ) initiated by powerful picosecond laser radiation of intensity $$3\times 10^{18}$$ W/cm $${}^{2}$$ are presented. A new procedure that relies on a simultaneous detection of the yield of alpha particles and the neutron yield in the reference reaction $${}^{11}$$ B $$(p,n)^{11}$$ C and which permits reaching a high precision of measurements is employed. The measured alpha-particle yield per pulse in the reaction $${}^{11}$$ B( $$p,3\alpha$$ ) is 10 $${}^{9}$$ particles in 4 $$\pi$$ sr at the above laser-pulse parameters. The results of a numerical particle-in-cell (PIC) simulation of the nuclear-fusion reaction $${}^{11}$$ B( $$p,3\alpha$$ ) proceeding in a solid-state boron target are presented. These results on the alpha-particle yield per pulse in the reaction $${}^{11}$$ B( $$p,3\alpha$$ ) agree fairly well with experimental results.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.