A multi-MeV alpha particle source via proton-boron fusion driven by a 10-GW tabletop laser

0570242 - FZÚ 2024 RIV GB eng J - Článek v odborném periodiku
Istokskaia, V. - Tosca, M. - Giuffrida, L. - Psikal, J. - Grepl, F. - Kantarelou, V. - Stanček, S. - Di Siena, S. - Hadjikyriacou, A. - McIlvenny, A. - Levy, Yoann - Huynh, Jaroslav - Cimrman, Martin - Pleskunov, P. - Nikitin, D. - Choukourov, A. - Belloni, F. - Picciotto, A. - Kar, S. - Borghesi, M. - Lucianetti, Antonio - Mocek, Tomáš - Margarone, D.
A multi-MeV alpha particle source via proton-boron fusion driven by a 10-GW tabletop laser.
COMMUNICATIONS PHYSICS. Roč. 6, č. 1 (2023), č. článku 27. ISSN 2399-3650. E-ISSN 2399-3650
Grant CEP: GA MŠMT EF15_003/0000445
GRANT EU: European Commission(XE) 871124 - LASERLAB-EUROPE
Grant ostatní: OP VVV - BIATRI(XE) CZ.02.1.01/0.0/0.0/15_003/0000445
Institucionální podpora: RVO:68378271
Klíčová slova: nuclear fusion * proto-boron fusion * alpha particles
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 5.5, rok: 2022
Způsob publikování: Open access

Nuclear fusion between protons and boron-11 nuclei has undergone a revival of interest thanks to the rapid progress in pulsed las. technology.Potential appl. of such reaction range from control. nuclear fusion to radiobiology.A laser-driven fusion approach consists in the interaction of high-power,high-intensity pulses with H- and B-rich targets.We report on an experiment exploiting proton-boron fusion in CN-BN targets to obtain high-energy alpha particle beams(up to 5 MeV)using a very compact approach and a tabletop las. system with a peak power of ~10GW,which can operate at high-repetition rate(up to 1 kHz).The secondary resonance in the cross section of proton-boron fusion(~150 keV in the center-of-mass frame)is exploited using a laser-based approach.The generated alpha particles are characterized in terms of energy,flux,and angular distribution using solid-state nuclear-track detectors,demonstrating a flux of ~105 particles per second at 10Hz,and ~106 per second at 1kHz.
Trvalý link: https://hdl.handle.net/11104/0342110