Generation of alpha-particle beams with a multi-kJ, peta-watt class laser system

0537271 - FZÚ 2021 RIV CH eng J - Journal Article
Margarone, Daniele - Morace, A. - Bonvalet, J. - Abe, Y. - Kantarelou, Vasiliki - Raffestin, D. - Giuffrida, Lorenzo - Nicolai, Ph. - Tosca, M. - Picciotto, A. - Petringa, G. - Cirrone, G. A. P. - Fukuda, Y. - Kuramitsu, Y. - Habara, H. - Arikawa, Y. - Fujioka, S. - d'Humieres, E. - Korn, Georg - Batani, D.
Generation of alpha-particle beams with a multi-kJ, peta-watt class laser system.
Frontiers in Physics. Roč. 8, Sep (2020), s. 1-5, č. článku 343. ISSN 2296-424X. E-ISSN 2296-424X
R&D Projects: GA MŠMT EF16_019/0000789; GA MŠMT LQ1606
Grant - others:OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Institutional support: RVO:68378271
Keywords : high-intensity lasers * TNSA * CR39 * pB fusion * alpha-particles
OECD category: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impact factor: 3.560, year: 2020
Method of publishing: Open access

We present preliminary results on generation of energetic alpha-particles driven by lasers. The experiment was performed at the Institute of Laser Engineering in Osaka using the short-pulse, high-intensity, high-energy, PW-class laser. The laser pulse was focused onto a thin plastic foil (pitcher) to generate a proton beam by the well-known TNSA mechanism which, in turn, was impinging onto a boron-nitride (BN) target (catcher) to generated alpha-particles as a result of proton-boron nuclear fusion events. Our results demonstrate generation of alpha-particles with energies in the range 8-10 MeV and with a flux around 5 x 10(9)sr(-1).
Permanent Link: http://hdl.handle.net/11104/0315007