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Proceedings Paper

Numerical studies on alpha production from high energy proton beam interaction with Boron
Author(s): S. D. Moustaizis; P. Lalousis; H. Hora; G. Korn
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Paper Abstract

Numerical investigations on high energy proton beam interaction with high density Boron plasma allows to simulate conditions concerning the alpha production from recent experimental measurements . The experiments measure the alpha production due to p11B nuclear fusion reactions when a laser-driven high energy proton beam interacts with Boron plasma produced by laser beam interaction with solid Boron. The alpha production and consequently the efficiency of the process depends on the initial proton beam energy, proton beam density, the Boron plasma density and temperature, and their temporal evolution. The main advantage for the p11B nuclear fusion reaction is the production of three alphas with total energy of 8.9 MeV, which could enhance the alpha heating effect and improve the alpha production. This particular effect is termed in the international literature as the alpha avalanche effect. Numerical results using a multi-fluid, global particle and energy balance, code shows the alpha production efficiency as a function of the initial energy of the proton beam, the Boron plasma density, the initial Boron plasma temperature and the temporal evolution of the plasma parameters. The simulations enable us to determine the interaction conditions (proton beam – B plasma) for which the alpha heating effect becomes important.

Paper Details

Date Published: 17 May 2017
PDF: 9 pages
Proc. SPIE 10241, Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers III, 102411L (17 May 2017); doi: 10.1117/12.2265836
Show Author Affiliations
S. D. Moustaizis, Technical Univ. of Crete (Greece)
P. Lalousis, Institute of Electronic Structure and Lasers, FORTH (Greece)
H. Hora, The Univ. of New South Wales (Australia)
G. Korn, ELI Beamlines, Institute of Physics of the ASCR, v.v.i. (Czech Republic)
Max-Planck-Institut für Quantenoptik (Germany)

Published in SPIE Proceedings Vol. 10241:
Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers III
Georg Korn; Luis O. Silva, Editor(s)

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