학술논문

Direct spectroscopic observation of charge-exchange recombination of medium-Z elements in the PLT tokamak
Document Type
Journal Article
Author
Source
Phys. Rev. Lett.; (United States); 53:5
Subject
70 PLASMA PHYSICS AND FUSION TECHNOLOGY PLT DEVICES
BEAM INJECTION HEATING
PLASMA DIAGNOSTICS
ALUMINIUM IONS
BEAM-PLASMA SYSTEMS
CHARGE EXCHANGE
ENERGY-LEVEL TRANSITIONS
MULTICHARGED IONS
RECOMBINATION
SCANDIUM IONS
CHARGED PARTICLES
HEATING
IONS
PLASMA HEATING
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS 700101* -- Fusion Energy-- Plasma Research-- Confinement, Heating, & Production
Language
English
Abstract
We report the first observation of line emission resulting directly from charge-exchange recombination of medium-Z elements injected into a PLT discharge. Transitions due to the radiative cascade immediately following charge-exchange of He-like Al and Sc were observed. One of the newly observed lines, Al XI 3209 A, offers a convenient spectroscopic and medium-Z charge-exchange diagostic due to its long (air) wavelength. Spatial scans provided informatin on the profile of the neutral beam in the plasma.