Realistic Simulations of Fast-Ion Wall Distribution Including Effects Due to Finite Larmor Radius

Author

Snicker, Antti ; Kurki-Suonio, Taina ; Sipilä, Seppo K.

Author_Institution

Dept. of Appl. Phys., Aalto Univ., Espoo, Finland

Volume

38

Issue

9

fYear

2010

Firstpage

2177

Lastpage

2184

Abstract

The Monte Carlo guiding center (GC)-following code ASCOT has been upgraded with the full-orbit-following capability. This is utilized only near the vessel walls in order to simulate diagnostics with characteristic lengths on the order of the Larmor radius. The option to switch more generally, near the turning points of the particle, from the GC integration to full-orbit integration and back is also discussed.

Keywords

Monte Carlo methods; plasma diagnostics; plasma simulation; plasma-wall interactions; ASCOT; Monte Carlo guiding center-following code; characteristic lengths; diagnostics simulation; fast ion wall distribution; finite Larmor radius effects; full orbit integration; full orbit-following capability; guiding center integration; vessel walls; Alpha particles; Ions; Magnetic confinement; Magnetic resonance; Mathematical model; Monte Carlo methods; Orbits; Plasma confinement; Plasma properties; Plasmas; Stochastic resonance; Switches; Testing; Tokamaks; Toroidal magnetic fields; Alpha particle; full orbit; hybrid model; particle tracing;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2010.2056705

Filename

5545410