Spectroscopic measurements on a titanium plasma gun with hydrogenated electrodes

Journal Article · Mon Apr 01 04:00:00 EST 1963 · European Physical Journal. A

DOI:https://doi.org/10.1007/BF01377738· OSTI ID:4740865

Drawin, H. -W.

The plasma produced by a plasma gun which consists of concentric titanium and tantalum washers was observed in the plasma gun as well as in a drift tube in which the plasma particles were injected. Axial drift velocities of hydrogen and impurities were determined in the drift tube by optical time-of- flight measurements. Maximum hydrogen velocities between 9 x 10⁶ to 1 x 10⁸ cm/sec could be determined, in agreement with magnetic probe-, Faraday cup- , microwave-, and electrostatic energy analyzer measurements. The plasma which is produced within the plasma gun by a powerful discharger (vacuum arc) was observed with a framing camera, spectrographs and photomultipliers. From end-on observed time resolved spectrograms the temperatures and electron densities were determined as a function of time. The measurements indicate that thermal equilibrium is reached about 2.5 mu sec after the firing of the main discharge and 4 mu sec after the beginning of the maln discharge a maximum temperature of about 72000 deg K is reached. The measurements further indicate that the highenergy part of the ejected particles is produced before an equilibrium state in the plasma gun has been established.

• Research Organization: EURATOM-CEA Fontenay-aux-Roses, France
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-017380
• OSTI ID: 4740865
• Journal Information: European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 2 Vol. 172; ISSN 1434-6001
• Publisher: Springer
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CAMERAS
DENSITY
ELECTRIC ARCS
ELECTRIC DISCHARGES
ELECTRODES
ELECTRONS
ENERGY RANGE
HIGH TEMPERATURE
HYDROGEN
IMPURITIES
INJECTION
MEASURED VALUES
MOTION
PHOTOMULTIPLIERS
PHYSICS
PLASMA
RESOLUTION
SPECTROSCOPY
TANTALUM
TEMPERATURE
TITANIUM
TUBES
VACUUM
VELOCITY