SPECTROSCOPIC INVESTIGATION OF A WEAKLY IONIZED PLASMA IN A HELIUM HOLLOW CATHOD DISCHARGE

Technical Report · Sun Sep 01 04:00:00 EDT 1963

OSTI ID:4002384

Hirschberg, J G; Hinnov, E; Hofmann, F W

Thr spectrum of a helium cathode discharge tube was studied in the visible and vacuum ultraviolet regions. Doppler temperatures of ion and representative neutral lines were calculated from line profiles measured with a photoelectric Fabry-Perot interferometer. Approximate electron densities and temperatures were determined from the gross features of the observed distribution of excited states. Dominating processes producing some of the details of the neutral helium excitation are proposed. (auth)

• Research Organization: Princeton Univ., N.J. Plasma Physics Lab.
• DOE Contract Number: AT(30-1)-1238
• NSA Number: NSA-18-021375
• OSTI ID: 4002384
• Report Number(s): MATT-236; CONF-75-8
• Country of Publication: United States
• Language: English

Related Subjects

CATHODES
DENSITY
DISTRIBUTION
ELECTRIC DISCHARGES
ELECTRONS
ENERGY LEVELS
EXCITATION
FABRY-PEROT INTERFEROMETER
HELIUM
HOLLOW CATHODES
INTERACTIONS
INTERFEROMETERS
IONIZATION
IONS
LIGHT
MEASURED VALUES
PHOTOELECTRIC EFFECT
PHYSICS
PLASMA
SPECTRA
SPECTRAL SHIFT
SPECTROMETERS
SPECTROSCOPY
TEMPERATURE
TUBES
ULTRAVIOLET RADIATION
VACUUM