Generation of α-Particle Beams With a Multi-kJ, Peta-Watt Class Laser System

We present preliminary results on generation of energetic α-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 ge...

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Bibliographic Details
Published in:Frontiers in physics 2020-09, Vol.8
Main Authors: Margarone, Daniele, Morace, Alessio, Bonvalet, Julien, Abe, Yuki, Kantarelou, Vasiliki, Raffestin, Didier, Giuffrida, Lorenzo, Nicolai, Philippe, Tosca, Marco, Picciotto, Antonino, Petringa, Giada, Cirrone, Giuseppe A. P., Fukuda, Yuji, Kuramitsu, Yasuhiro, Habara, Hideaki, Arikawa, Yasunobu, Fujioka, Shinsuke, D'Humieres, Emmanuel, Korn, Georg, Batani, Dimitri
Format: Article
Language:English
Subjects:
CR39
high-intensity lasers
pB fusion
TNSA
α-particles
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Summary:We present preliminary results on generation of energetic α-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 α-particles with energies in the range 8–10 MeV and with a flux around 5 × 109 sr−1.
ISSN:2296-424X
2296-424X
DOI:10.3389/fphy.2020.00343