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Variance of DD-neutron yield in laser fusion experiments
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SYSNO ASEP 0545266 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Variance of DD-neutron yield in laser fusion experiments Author(s) Krása, Josef (FZU-D) RID, ORCID
Klír, D. (CZ)
Cikhardt, J. (CZ)
Řezáč, K. (CZ)
Pfeifer, Miroslav (FZU-D) RID, ORCID, SAI
Burian, Tomáš (FZU-D) RID, ORCID
Dudžák, Roman (FZU-D) RID, ORCID
Dostál, Jan (FZU-D) ORCID
Krupka, Michal (FZU-D) ORCID
Singh, Sushil K. (FZU-D) ORCID
Juha, Libor (FZU-D) RID, ORCID, SAI
Krůs, M. (CZ)
Chodukowski, T. (PL)
Borodziuk, S. (PL)
Rusiniak, Z. (PL)
Pisarczyk, T. (PL)Number of authors 16 Article number P2.2001 Source Title EPS 2021: 47th European Physical Society Conference on Plasma Physics, 45A. - Mulhouse : European Physical Society, 2021 - ISBN 979-10-96389-13-1 Number of pages 4 s. Publication form Online - E Action 47th EPS Conference on Plasma Physics Event date 21.06.2021 - 25.06.2021 VEvent location Virtual Conference Country ES - Spain Event type EUR Language eng - English Country FR - France Keywords laser system PALS ; deuterated plastic target irradiation ; analysis o variance for neutron yield values Subject RIV BH - Optics, Masers, Lasers OECD category Fluids and plasma physics (including surface physics) R&D Projects GA19-02545S GA ČR - Czech Science Foundation (CSF) LM2018114 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 Annotation This contribution deals with experimental observations of the yield of DD fusion in deuterated plastic targets irradiated by 300-ps 3-TW laser system PALS. To perform the analysis of variance for neutron yield values, Yn, in the range of 105 - 109 observed in a relatively narrow range of laser energy E from 500 - 700 J, the observed yield values were included in a neutron-yield – laser-energy (Yn−E) diagram showing general trends in the energy yield scaling Yn (E). This dependence is characterized by a power law, Yn = Q E1.65, where Q is the parameter reflecting possible dependence on the pulse duration, laser intensity, laser contrast ratio, focal geometry, target structure, etc. The analysis we present shows that, despite shot-to-shot fluctuations, the variance of Q values from 14-5.2x104 for the narrow range of laser energy obtained in PALS experiments can be elucidated by the influence of some nonlinear processes affecting ion acceleration.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address http://ocs.ciemat.es/eps2021pap/pdf/P2.2001.pdf
Number of the records: 1