A pairwise nuclear fusion algorithm for weighted particle-in-cell plasma simulations

JOURNAL OF COMPUTATIONAL PHYSICS

卷:388

Article

Higginson, Drew Pitney¹  Link, Anthony¹  Schmidt, Andrea¹ 

[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

关键词: Particle-in-cell;    Nuclear Fusion;    Monte Carlo methods;    Inertial confinement fusion;    Thermonuclear Fusion;   

DOI  :  10.1016/j.jcp.2019.03.020

来源: Elsevier

【 摘 要 】

A pairwise nuclear fusion algorithm for arbitrarily weighted macroparticles in a particle-in-cell simulation is described. The method is benchmarked in situations with like-particles, D(d,n)(3) He, unlike-particles, D(t,n)(4) He, thermonuclear plasmas, beam-target fusion, and for large difference in macroparticle weights. Studies of the required number of macroparticles in thermonuclear plasmas show that 100-1000 macroparticles are required to achieve repeatability of yields around 10%, likewise 10(4)-10(5) for 1%, depending on the fusion interaction and ion temperature. (C) 2019 Elsevier Inc. All rights reserved.

【 授权许可】

Free