Adaptive time-stepping Monte Carlo integration of Coulomb collisions

Sarkimaki, Konsta; Hirvijoki, E.; Terava, J.

doi:10.1016/j.cpc.2017.09.025

Title: Adaptive time-stepping Monte Carlo integration of Coulomb collisions

Journal Article · Thu Oct 12 00:00:00 EDT 2017 · Computer Physics Communications

DOI:https://doi.org/10.1016/j.cpc.2017.09.025· OSTI ID:1441004

^[1]; Hirvijoki, E. ^[2]; Terava, J. ^[1]

Aalto Univ., Espoo (Finland)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Here, we report an accessible and robust tool for evaluating the effects of Coulomb collisions on a test particle in a plasma that obeys Maxwell–Jüttner statistics. The implementation is based on the Beliaev–Budker collision integral which allows both the test particle and the background plasma to be relativistic. The integration method supports adaptive time stepping, which is shown to greatly improve the computational efficiency. The Monte Carlo method is implemented for both the three-dimensional particle momentum space and the five-dimensional guiding center phase space.

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Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: 259675; 298126; AC02–09CH11466; AC02–09-CH11466

OSTI ID:: 1441004

Alternate ID(s):: OSTI ID: 1564327

Journal Information:: Computer Physics Communications, Vol. 222, Issue C; ISSN 0010-4655

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 6 works

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References (13)

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Cited By (2)

Electron acceleration in a JET disruption simulation Sommariva, C.; Nardon, E.; Beyer, P. Nuclear Fusion, Vol. 58, Issue 10 https://doi.org/10.1088/1741-4326/aad47d	journal	August 2018
Electron acceleration in a JET disruption simulation Sommariva, Cristian; Nardon, Eric; Beyer, Peter arXiv https://doi.org/10.48550/arxiv.1805.05655	text	January 2018

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