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Advanced scheme for high-yield laser driven proton-boron fusion reaction
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SYSNO ASEP 0455632 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Advanced scheme for high-yield laser driven proton-boron fusion reaction Author(s) Margarone, Daniele (FZU-D) RID, ORCID
Picciotto, A. (IT)
Velyhan, Andriy (FZU-D) RID, ORCID
Krása, Josef (FZU-D) RID, ORCID
Kucharik, M. (CZ)
Morrissey, Michael (FZU-D)
Mangione, A. (IT)
Szydlowsky, A. (PL)
Malinowska, A. (PL)
Bertuccio, G. (IT)
Shi, Y. (IT)
Crivellari, M. (IT)
Ullschmied, Jiří (UFP-V) RID
Bellutti, P. (IT)
Korn, Georg (FZU-D) RID, ORCIDSource Title High Power Lasers for Fusion Research /3./. - Bellingham : SPIE, 2015 / Awwal A.A.S. ; Lane M.A. - ISSN 0277-786X - ISBN 978-1-62841-435-6 Pages "93450f-1"-"93450f-8" Number of pages 8 s. Publication form Print - P Action Biennial Conference on High Power Lasers for Fusion Research /3./ Event date 10.02.2015 - 12.02.2015 VEvent location San Francisco Country US - United States Event type WRD Language eng - English Country US - United States Keywords proton-boron fusion ; advanced targets ; laser-induced nuclear reactions Subject RIV BF - Elementary Particles and High Energy Physics Subject RIV - cooperation Institute of Plasma Physics - Optics, Masers, Lasers R&D Projects ED1.1.00/02.0061 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EE2.3.20.0279 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 ; UFP-V - RVO:61389021 UT WOS 000353894900011 EID SCOPUS 84932189381 DOI 10.1117/12.2084598 Annotation A low contrast nanosecond laser pulse with relatively low intensity (3 x 10(16) W cm(-2)) was used to enhance the yield of induced nuclear reactions in advanced solid targets. In particular the "ultraclean" proton-boron fusion reaction, producing energetic alpha-particles without neutron generation, was chosen. A spatially well-defined layer of boron dopants in a hydrogen-enriched silicon substrate was used as target. The combination of the specific target geometry and the laser pulse temporal shape allowed enhancing the yield of alpha-particles up to 10(9) per steradian, i.e 100 times higher than previous experimental achievements. Moreover the alpha particle stream presented a clearly peaked angular and energy distribution, which make this secondary source attractive for potential applications. This result can be ascribed to the interaction of the long laser pre-pulse with the target and to the optimal target geometry and composition. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2016
Number of the records: 1