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Title: Particle stochasticity due to magnetic perturbations of axisymmetric geometries

Abstract

The quasilinear theory of collisionless test particle diffusion in stochastic magnetic fields is extended to include the effects of finite gyroradius rho and particle drifts (including magnetic trapping). A canonical framework is used, in which both the criterion for onset of stochasticity and the diffusion tensor scale with field-particle coupling coefficients g/sub l/. The g/sub l/ contain all the information about a given particle's unperturbed orbit and the perturbation fields with which it interacts. The modification of transport due to finite rho and drifts is thus found by comparison of the g/sub l/ including these effects to their driftless, rho ..-->.. o limit.

Authors:
;
Publication Date:
Research Org.:
Princeton Univ., NJ (USA). Plasma Physics Lab.
OSTI Identifier:
5904843
Report Number(s):
PPPL-1556
TRN: 80-000477
DOE Contract Number:
EY-76-C-02-3073
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA DRIFT; CHARGED-PARTICLE TRANSPORT; STOCHASTIC PROCESSES; COLLISIONLESS PLASMA; MAGNETIC FIELD CONFIGURATIONS; QUASILINEAR PROBLEMS; TEST PARTICLES; TOKAMAK DEVICES; CLOSED PLASMA DEVICES; PLASMA; RADIATION TRANSPORT; THERMONUCLEAR DEVICES; 700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)

Citation Formats

Mynick, H.E., and Krommes, J.A. Particle stochasticity due to magnetic perturbations of axisymmetric geometries. United States: N. p., 1979. Web. doi:10.2172/5904843.
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Mynick, H.E., & Krommes, J.A. Particle stochasticity due to magnetic perturbations of axisymmetric geometries. United States. doi:10.2172/5904843.
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Mynick, H.E., and Krommes, J.A. Thu . "Particle stochasticity due to magnetic perturbations of axisymmetric geometries". United States. doi:10.2172/5904843. https://www.osti.gov/servlets/purl/5904843.
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@article{osti_5904843,
title = {Particle stochasticity due to magnetic perturbations of axisymmetric geometries},
author = {Mynick, H.E. and Krommes, J.A.},
abstractNote = {The quasilinear theory of collisionless test particle diffusion in stochastic magnetic fields is extended to include the effects of finite gyroradius rho and particle drifts (including magnetic trapping). A canonical framework is used, in which both the criterion for onset of stochasticity and the diffusion tensor scale with field-particle coupling coefficients g/sub l/. The g/sub l/ contain all the information about a given particle's unperturbed orbit and the perturbation fields with which it interacts. The modification of transport due to finite rho and drifts is thus found by comparison of the g/sub l/ including these effects to their driftless, rho ..-->.. o limit.},
doi = {10.2172/5904843},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Nov 01 00:00:00 EST 1979},
month = {Thu Nov 01 00:00:00 EST 1979}
}
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Technical Report:
View Technical Report (0.70 MB)
DOI:  10.2172/5904843
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