Observation of a forbidden line Fe XX and its application for ion temperature measurements in the Princeton Large Torus tokamak

Journal Article · Mon Sep 11 04:00:00 EDT 1978 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.41.756· OSTI ID:6875281

Suckewer, S; Hinnov, E

A spectrum line in the Princeton Large Torus (PLT) tokamak discharges, with wavelength measured as 2665.1 +- 0.3 A, has been identified as the 2s/sup 2/p/sup 3/ /sup 2/D/sub 5/2/ ..-->.. /sup 2/D/sub 3/2/ magnetic dipole transition in Fe XX ground configuration. A variety of localized spectroscopic diagnostics, e.g., ion temperature and density distribution measurements in the high-temperature interior of the plasma, are feasible by means of forbidden lines of this type. The 2665-A line has been used to measure near-central ion temperature in a discharge with auxiliary neutral-beam heating.

• Research Organization: Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08540
• OSTI ID: 6875281
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 41:11; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ATOMIC IONS
CHARGED PARTICLES
CLOSED PLASMA DEVICES
ENERGY-LEVEL TRANSITIONS
FORBIDDEN TRANSITIONS
ION DENSITY
ION TEMPERATURE
IONS
IRON IONS
MULTICHARGED IONS
PLASMA DIAGNOSTICS
PLT REACTORS
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS