Počet záznamů: 1
Plasma polymers as targets for laser-driven proton-boron fusion
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SYSNO ASEP 0575034 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Plasma polymers as targets for laser-driven proton-boron fusion Tvůrce(i) Tosca, M. (IT)
Molloy, D. (AU)
McNamee, A. (GB)
Pleskunov, P. (CZ)
Protsak, M. (CZ)
Biliak, K. (CZ)
Nikitin, D. (CZ)
Kousal, J. (CZ)
Krtouš, Z. (CZ)
Hanyková, L. (CZ)
Hanuš, J. (CZ)
Biederman, H. (CZ)
Foster, T. (GB)
Nersisyan, G. (GB)
Martin, P. (GB)
Ho, C. (GB)
Macková, Anna (UJF-V) RID, ORCID, SAI
Mikšová, Romana (UJF-V) RID, ORCID, SAI
Borghesi, M. (GB)
Kar, S. (GB)
Istokskaia, V. (CZ)
Levy, Yoann (FZU-D)
Picciotto, A. (IT)
Giuffrida, L. (IT)
Margarone, D. (IT)
Choukourov, A. (CZ)Celkový počet autorů 26 Číslo článku 1227140 Zdroj.dok. Frontiers in Physics. - : Frontiers Research Foundation - ISSN 2296-424X
Roč. 11, JUL (2023)Poč.str. 11 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova plasma polymer ; thin films ; boron nitride ; proton-boron fusion ; ultra-high intense lasers Obor OECD Nuclear physics CEP EF16_013/0001812 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF15_003/0000445 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UJF-V - RVO:61389005 ; FZU-D - RVO:68378271 UT WOS 001045493800001 EID SCOPUS 85167502858 DOI 10.3389/fphy.2023.1227140 Anotace Laser-driven proton-boron (pB) fusion has been gaining significant interest for energetic alpha particles production because of its neutron-less nature. This approach requires the use of B- and H-rich materials as targets, and common practice is the use of BN and conventional polymers. In this work, we chose plasma-assisted vapour phase deposition to prepare films of oligoethylenes (plasma polymers) on Boron Nitride BN substrates as an advanced alternative. The r.f. power delivered to the plasma was varied between 0 and 50 W to produce coatings with different crosslink density and hydrogen content, while maintaining the constant thickness of 1 mu m. The chemical composition, including the hydrogen concentration, was investigated using XPS and RBS/ERDA, whereas the surface topography was analyzed using SEM and AFM. We triggered the pB nuclear fusion reaction focusing laser pulses from two different systems (i.e., the TARANIS multi-TW laser at the Queen's University Belfast (United Kingdom) and the PERLA B 10-GW laser system at the HiLASE center in Prague (Czech Republic)) directly onto these targets. We achieved a yield up to 10(8) and 10(4) alpha particles/sr using the TARANIS and PERLA B lasers, respectively. Radiative-hydrodynamic and particle-in-cell PIC simulations were performed to understand the laser-target interaction and retrieve the energy spectra of the protons. The nuclear collisional algorithm implemented in the WarpX PIC code was used to identify the region where pB fusion occurs. Taken together, the results suggest a complex relationship between the hydrogen content, target morphology, and structure of the plasma polymer, which play a crucial role in laser absorption, target expansion, proton acceleration and ultimately nuclear fusion reactions in the plasma. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2024 Elektronická adresa https://doi.org/10.3389/fphy.2023.1227140
Počet záznamů: 1