Magnetic field measurements in tokamak plasmas

The measurement of the poloidal magnetic field in a tokamak plasma from the Zeeman splitting and polarization of the magnetic dipole radiation from heavy ions is discussed. When viewed from a direction perpendicular to the toroidal field, the effect of the poloidal field on the circularly polarized...

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Veröffentlicht in:	J. Appl. Phys.; (United States) 1984-11, Vol.56 (9), p.2512-2518
Hauptverfasser:	FELDMAN, U, SEELY, J. F, SHEELEY, N. R. JR, SUCKEWER, S, TITLE, A. M
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700102 - Fusion Energy- Plasma Research- Diagnostics CLOSED PLASMA DEVICES ELECTROMAGNETIC RADIATION ENERGY-LEVEL TRANSITIONS Exact sciences and technology INFRARED RADIATION M1-TRANSITIONS Magnetic confinement and equilibrium MAGNETIC FIELD CONFIGURATIONS MAGNETIC FIELDS MULTIPOLE TRANSITIONS NEAR INFRARED RADIATION PHOTOMETRY Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges PLASMA DIAGNOSTICS POLARIMETERS POLARIZATION RADIATIONS RESOLUTION SPATIAL RESOLUTION THERMONUCLEAR DEVICES TOKAMAK DEVICES ULTRAVIOLET RADIATION VISIBLE RADIATION ZEEMAN EFFECT
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Zusammenfassung:	The measurement of the poloidal magnetic field in a tokamak plasma from the Zeeman splitting and polarization of the magnetic dipole radiation from heavy ions is discussed. When viewed from a direction perpendicular to the toroidal field, the effect of the poloidal field on the circularly polarized radiation is detectable using a photoelectric polarimeter. The Zeeman splittings for a number of magnetic dipole transitions with wavelengths in the range 2300–9300 Å are presented. An imaging polarimeter is proposed that can measure the poloidal magnetic field with space and time resolution.
ISSN:	0021-8979 1089-7550
DOI:	10.1063/1.334315