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Author: Ken D. Owens
Requested Type: Pre-Selected Invited
Submitted: 2018-02-28 18:19:31

Co-authors: T. Lauck, S. Margell

Contact Info:
Humboldt State University
1 Harpst St
Arcata, CA   95521

Abstract Text:
A new factorization method for studying fusion is presented. It provides a method for simulating three-dimensional collisions in locally isotropic plasmas using a density scaling argument based on a one-dimensional model [1]. This model includes ion movement, Coulomb collisions and Gamow type tunneling probabilities in an un-magnetized deuterium-tritium plasma [2]. The main advantage of this method is a reduction in complexity over three-dimensional approaches. Particle-in-Cell numerical simulations based on this model predict three-dimensional fusion reactivity [3] and collision rates for ions and electrons [4] that are in excellent agreement with theory, suggesting that the model may be useful in modeling burning plasmas.

[1] R. Fitzpatrick, University of Texas at Austin, Computational Physics: An introductory course, http://farside.ph.utexas.edu/teaching/329/lectures/lectures.html.
[2] Griffiths, Introduction to Quantum Mechanics, 2nd edition, Pearson.
[3] NRL Plasma Formulary, Revised 2013, Naval Research Laboratory.
[4] R. J. Goldston and P. H. Rutherford, Introduction to Plasma Physics, Taylor and Francis.