MAGNETIC FIELD AND TEMPERATURE VARIATIONS IN A TOROIDAL PINCH DISCHARGE

Journal Article · Sat Dec 01 04:00:00 EST 1962 · Nucl. Instr. Methods

DOI:https://doi.org/10.1016/0029-554X(62)90002-2· OSTI ID:4756171

Svennerstedt, S; Berglund, S; Westerlund, S

In experiments on toroidal pinch discharges of moderate energy the stability dependence on the applied voltage, iongitudinal magnetic field, and initial gas pressure is studied. A Bessel-function model based on the assumption of a force-free configuration is found to agree with the experimentally determined field distributions. Electron temperature determinations are made from measurements of the hydrogen continuum and the intensity ratio between H/sub BETA / and the continuum. Electron density and ion temperature are obtained from time resolved profile measurements on H/sub BETA / and impurity lines. The conventional pinch configuration with an internal longitudinal field is supplemented by an outer reversed field. The application of this field gives a larger compression of the plasma and an increase of the electron temperature by a factor of two or three, but the intermixing of fields is followed by a rapid outward drift of the current channel and a decrease of both temperature and plasma current. (auth)

• Research Organization: Univ. of Uppsala
• NSA Number: NSA-17-015364
• OSTI ID: 4756171
• Journal Information: Nucl. Instr. Methods, Journal Name: Nucl. Instr. Methods Vol. Vol: 17
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BESSEL FUNCTIONS
CONFIGURATION
CURRENTS
DENSITY
DIFFERENTIAL EQUATIONS
DISTRIBUTION
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
ELECTRONS
ENERGY
GASES
HYDROGEN
IMPURITIES
IONS
MAGNETIC FIELDS
MATHEMATICS
MEASURED VALUES
PHYSICS
PINCH
PLASMA
PRESSURE
QUANTITATIVE ANALYSIS
SPECTRA
STABILITY
TEMPERATURE
TORUS
VARIATIONS