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Evolution of magnetic moment due to the cyclotron resonance with field ripples in a tokamak

Technical Report:

Abstract

Toroidal field ripples of tokamaks resonate under certain conditions with the cyclotron motion of charged particles streaming along the magnetic field lines. This resonance may yield the evolution of the magnetic moment, a good adiabatic invariant of the motion in magnetic fields. The equation of motion for the magnetic moment is discretized to a mapping which describes the evolution of the magnetic moment across the successive resonances. On the basis of the mapping, derived the linear stability of the motion in the phase space and the diffusion constant of the magnetic moment when the motion becomes stochastic. (author).
Authors:
Tanaka, Masatoshi [1] 
  1. Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan). Naka Fusion Research Establishment
Publication Date:
Oct 01, 1991
Product Type:
Technical Report
Report Number:
JAERI-M-91-168
Reference Number:
SCA: 700430; PA: JPN-91:011249; SN: 92000630665
Resource Relation:
Other Information: PBD: Oct 1991
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CYCLOTRON RESONANCE; TOKAMAK DEVICES; MAGNETIC MOMENTS; MAGNETIC FIELDS; ADIABATIC INVARIANCE; DIFFUSION; 700430; MAGNET COILS AND FIELDS
OSTI ID:
10109110
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE92751058; TRN: JP9111249
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
JPN
Size:
31 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Tanaka, Masatoshi. Evolution of magnetic moment due to the cyclotron resonance with field ripples in a tokamak. Japan: N. p., 1991. Web.
Tanaka, Masatoshi. Evolution of magnetic moment due to the cyclotron resonance with field ripples in a tokamak. Japan.
Tanaka, Masatoshi. 1991. "Evolution of magnetic moment due to the cyclotron resonance with field ripples in a tokamak." Japan.
@misc{etde_10109110,
title = {Evolution of magnetic moment due to the cyclotron resonance with field ripples in a tokamak}
author = {Tanaka, Masatoshi}
abstractNote = {Toroidal field ripples of tokamaks resonate under certain conditions with the cyclotron motion of charged particles streaming along the magnetic field lines. This resonance may yield the evolution of the magnetic moment, a good adiabatic invariant of the motion in magnetic fields. The equation of motion for the magnetic moment is discretized to a mapping which describes the evolution of the magnetic moment across the successive resonances. On the basis of the mapping, derived the linear stability of the motion in the phase space and the diffusion constant of the magnetic moment when the motion becomes stochastic. (author).}
place = {Japan}
year = {1991}
month = {Oct}
}