MEASUREMENT OF PLASMA TEMPERATURE AND ELECTRON DENSITY

Journal Article · Tue Sep 01 04:00:00 EDT 1959 · J. Phys. Soc. Japan

DOI:https://doi.org/10.1143/JPSJ.14.1235· OSTI ID:4225019

Murakawa, K; Mizuno-Hashimoto, S

The temperature of the plasma obtained by passing condensed discharge through a Geisler tube containing neon was measured. The wave-length of Ne I lambda 5852 emitted from condensed discharge was compared with that of the same line emitted from arc discharge, the comparison being made with a Fabry-Perot etalon. Red shift of the line by spark discharge was detected. From the amount of the shift the half-value width contributed by the ionic field and electrons was calculated by Lindholm's formula. Subtracting this (vectorially) from the observed half-value width, the width contributed by the Doppler effect alone was obtained, and then the plasma temperature was calculated. From the line profiles of H gamma and Ne I lambda 4715 Holtsmark's so-called normal field strength F/ sub n/ was obtained, and therefore the electron density could be deduced. In our present example the mean plasma temperature was T = 6 x 10/sup 3/ K, and the mean electron density N = 1 x 10/sup 10/ per cm/sup 3/. (auth)

• Research Organization: Univ. of Tokyo
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-022737
• OSTI ID: 4225019
• Journal Information: J. Phys. Soc. Japan, Journal Name: J. Phys. Soc. Japan Vol. Vol: 14
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ELECTRIC ARCS
ELECTRIC DISCHARGES
ELECTRIC FIELDS
ELECTRONS
FABRY- PEROT INTERFEROMETER
FREQUENCY
IONS
LINE BROADENING
MEASURED VALUES
NEON
OPTICAL SYSTEMS
PHYSICS AND MATHEMATICS
PLASMA
SPARKS
SPECTRA
SPECTRAL SHIFT
SPECTROSCOPY
TEMPERATURE