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High-current stream of energetic alpha particles from laser-driven proton-boron fusion
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SYSNO ASEP 0525146 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title High-current stream of energetic alpha particles from laser-driven proton-boron fusion Author(s) Giuffrida, Lorenzo (FZU-D) ORCID
Belloni, F. (IT)
Margarone, Daniele (FZU-D) RID, ORCID
Petringa, G. (IT)
Milluzzo, G. (IT)
Scuderi, Valentina (FZU-D) RID
Velyhan, Andriy (FZU-D) RID, ORCID
Rosinski, M. (PL)
Picciotto, A. (IT)
Kucharik, M. (CZ)
Dostál, Jan (FZU-D) ORCID
Dudžák, Roman (FZU-D) RID, ORCID
Krása, Josef (FZU-D) RID, ORCID
Istokskaia, Valeria (FZU-D) ORCID
Catalano, R. (IT)
Tudisco, S. (IT)
Verona, C. (IT)
Jungwirth, Karel (FZU-D) RID
Bellutti, P. (IT)
Korn, Georg (FZU-D) RID, ORCID
Cirrone, Giuseppe A.P. (FZU-D)Number of authors 21 Article number 013204 Source Title Physical Review E. - : American Physical Society - ISSN 2470-0045
Roč. 101, č. 1 (2020), s. 1-13Number of pages 13 s. Language eng - English Country US - United States Keywords proton-boron fusion reaction ; boron nitride target ; subnanosecond laser system ; α particles generation Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects GA15-02964S GA ČR - Czech Science Foundation (CSF) EF16_019/0000789 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LQ1606 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000508455100009 EID SCOPUS 85078871523 DOI 10.1103/PhysRevE.101.013204 Annotation The nuclear reaction known as proton-boron fusion has been triggered by a subnanosecond laser system focused onto a thick boron nitride target at modest laser intensity (∼10to16 W/cm2), resulting in a record yield of generated α particles. The estimated value of α particles emitted per laser pulse is around 10to11, thus orders of magnitude higher than any other experimental result previously reported. The accelerated α particle stream shows unique features in terms of kinetic energy (up to 10 MeV), pulse duration (∼10 ns), and peak current (∼2 A) at 1 m from the source, promising potential applications of such neutronless nuclear fusion reactions. We have used a beam-driven fusion scheme to explain the total number of α particles generated in the nuclear reaction. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2021 Electronic address https://doi.org/10.1103/PhysRevE.101.013204
Number of the records: 1