Boron-proton nuclear-fusion enhancement induced in boron-doped silicon targets by low-contrast pulsed laser

0439313 - FZÚ 2015 RIV US eng J - Článek v odborném periodiku
Picciotto, A. - Margarone, Daniele - Velyhan, Andriy - Bellutti, P. - Krása, Josef - Szydlowsky, A. - Bertuccio, G. - Shi, Y. - Mangione, A. - Prokůpek, Jan - Malinowska, A. - Krouský, Eduard - Ullschmied, Jiří - Láska, Leoš - Kucharik, M. - Korn, Georg
Boron-proton nuclear-fusion enhancement induced in boron-doped silicon targets by low-contrast pulsed laser.
Physical Review X. Roč. 4, č. 3 (2014), , "031030-1"-"031030-8". ISSN 2160-3308. E-ISSN 2160-3308
Grant CEP: GA MŠMT ED1.1.00/02.0061; GA MŠMT(CZ) LD14089; GA MŠMT LM2010014
GRANT EU: European Commission(XE) 284464 - LASERLAB-EUROPE
Grant ostatní: ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061; AVČR(CZ) M100101210
Institucionální podpora: RVO:68378271 ; RVO:61389021
Klíčová slova: thermonuclear fusion * fast ions * plasmas * energy * acceleration * hydrogen * detector
Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače; BL - Fyzika plazmatu a výboje v plynech (UFP-V)
Impakt faktor: 9.043, rok: 2014

We show that a spatially well-defined layer of boron dopants in a hydrogen-enriched silicon target allows the production of a high yield of alpha particles of around 109 per steradian using a nanosecond, low-contrast laser pulse with a nominal intensity of approximately 3 × 1016 Wcm−2. This result can be ascribed to the nature of the long laser-pulse interaction with the target and with the expanding plasma, as well as to the optimal target geometry and composition. The possibility of an impact on future applications such as nuclear fusion without production of neutron-induced radioactivity and compact ion accelerators is anticipated.
Trvalý link: http://hdl.handle.net/11104/0242595