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Title: Destruction of Invariant Surfaces and Magnetic Coordinates for Perturbed Magnetic Fields

Abstract

Straight-field-line coordinates are constructed for nearly integrable magnetic fields. The coordinates are based on the robust, noble-irrational rotational-transform surfaces, whose existence is determined by an application of Greene's residue criterion. A simple method to locate these surfaces is described. Sequences of surfaces with rotational-transform converging to low order rationals maximize the region of straight-field-line coordinates.

Authors:
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
820204
Report Number(s):
PPPL-3904
TRN: US0305719
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 20 Nov 2003
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; MAGNETIC FIELDS; RESIDUES; ROTATIONAL TRANSFORM; CHAOS; MAGNETIC ISLANDS; MAGNETIC SURFACES

Citation Formats

S.R. Hudson. Destruction of Invariant Surfaces and Magnetic Coordinates for Perturbed Magnetic Fields. United States: N. p., 2003. Web. doi:10.2172/820204.
S.R. Hudson. Destruction of Invariant Surfaces and Magnetic Coordinates for Perturbed Magnetic Fields. United States. doi:10.2172/820204.
S.R. Hudson. Thu . "Destruction of Invariant Surfaces and Magnetic Coordinates for Perturbed Magnetic Fields". United States. doi:10.2172/820204. https://www.osti.gov/servlets/purl/820204.
@article{osti_820204,
title = {Destruction of Invariant Surfaces and Magnetic Coordinates for Perturbed Magnetic Fields},
author = {S.R. Hudson},
abstractNote = {Straight-field-line coordinates are constructed for nearly integrable magnetic fields. The coordinates are based on the robust, noble-irrational rotational-transform surfaces, whose existence is determined by an application of Greene's residue criterion. A simple method to locate these surfaces is described. Sequences of surfaces with rotational-transform converging to low order rationals maximize the region of straight-field-line coordinates.},
doi = {10.2172/820204},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {11}
}