Visible and VUV spectroscopic diagnostics on Heliotron E

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1140187· OSTI ID:6950159

Kondo, K; Zushi, H; Nishimura, S; Kaneko, H; Sato, M; Sudo, S; Sano, F; Mutoh, T; Motojima, O; Obiki, T; others, and

Diagnostic applications of visible and VUV spectroscopic techniques, as applied to the currentless Heliotron E plasma device, are described. Visible spectroscopy has been used to measure (i) ion temperature, (ii) proton-to-electron density ratio, (iii) Z/sub eff/ by charge exchange recombination from an intense neutral beam, (iv) radial electric field by poloidal rotation velocity measurement, and (v) electron density around an ablating pellet by a Stark profile. VUV spectroscopy has been used to investigate emission spectra due to multiply ionized impurity species. This information is used to measure the densities of these species, and to learn about the transport of these particles. Recently, a flat-field survey spectrometer has been constructed and used to study the emission spectra due to metallic impurities in ICRF-heated plasmas.

• Research Organization: Plasma Physics Laboratory, Kyoto University, Uji, Kyoto, Japan
• OSTI ID: 6950159
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:8; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
700205 -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
ABLATION
CLOSED PLASMA DEVICES
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
EXTREME ULTRAVIOLET RADIATION
FUEL PELLETS
HELIOTRON
MEASURING INSTRUMENTS
OPTICAL SPECTROMETERS
PELLETS
PLASMA DIAGNOSTICS
RADIATIONS
SPECTROMETERS
THERMONUCLEAR DEVICES
ULTRAVIOLET RADIATION
ULTRAVIOLET SPECTROMETERS
VISIBLE RADIATION