Neutron production from Li-7(d,xn) nuclear fusion reactions driven by high-intensity laser-target interactions

Davis, J. and Petrov, G. M. and Petrova, Tz and Willingale, L. and Maksimchuk, A. and Krushelnick, K. (2010) Neutron production from Li-7(d,xn) nuclear fusion reactions driven by high-intensity laser-target interactions. Plasma Physics and Controlled Fusion, 52 (4). ISSN 0741-3335

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Abstract

Numerical simulations of neutron production from deuterium-lithium nuclear fusion reactions have been performed. A set of differential cross sections for the Li-7(d,xn) reaction for incident deuteron energies of up to 50MeV is assembled. The angular distribution of neutrons from a thick lithium target is simulated and benchmarked against experimental data. Two-stage neutron production from laser-target experiments has been studied as a function of laser intensity and energy. During the first stage a well collimated deuteron beam is generated using a high-intensity ultrashort pulse laser. During the second stage it is transported through a lithium target using a 3D Monte-Carlo ion beam-target deposition model. The neutron yield is estimated to be similar to 10(8) neutrons J(-1) laser energy. Some 10(10) neutrons can be expected from a similar to 100 J petawatt-class laser. For incident deuteron energies above 1 MeV the proposed scheme for neutron production from d-Li reactions is superior to that from d-d reactions, producing a collimated beam of neutrons with higher neutron yield.

Item Type:
Journal Article
Journal or Publication Title:
Plasma Physics and Controlled Fusion
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
81932
Deposited By:
Deposited On:
08 Oct 2016 04:09
Refereed?:
Yes
Published?:
Published
Last Modified:
25 Feb 2020 07:35