Accession Number : AD0014186


Title :   EXPERIMENTAL STUDIES OF TRANSPORT PHENOMENA IN HIGHLY IONIZED GASES


Corporate Author : OKLAHOMA UNIV RESEARCH INST NORMAN


Personal Author(s) : Clotfelter, Beryl E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/014186.pdf


Report Date : 30 Sep 1952


Pagination or Media Count : 70


Abstract : Investigation was undertaken to obtain indications of ion concentrations in a pulsed discharge by means of the pseudo-Hall effect. The work was conducted with pulsed discharges in which gas streams rapidly through the region in which the magnetic field is applied and in which the current present in the probe circuit depends on the conductivity of the ionized gas. The particle velocities of the gas ions were measured as well as the resistivity of the plasma at points along the expansion path of a pulsed discharge. The observed particle velocities agreed well with the flow velocity of the expanding gas as determined from pictures made with a rotating mirror. The resistance of the plasma decreased monotonically as the point of observation moved from 18.1 to 6.4 cm from the discharge region. This result was considered to be inconsistent with the interpretation made of Balmer line broadening on the basis of the Holtsmark theory of Fowler, Atkinson, and Marks, and by Olsen and Huxford. Available theory proved to be inadequate for calculating the ion concentration from the measured resistances.


Descriptors :   *TRANSPORT PROPERTIES , *IONIZED GASES , MAGNETIC FIELDS , PLASMAS(PHYSICS) , RESISTANCE , PATHS , PARTICLES , FLOW RATE , PULSES , EXPANSION , CIRCUITS , ROTATION , STREAMS , ION DENSITY , PROBES , VELOCITY , MIRRORS


Subject Categories : Plasma Physics and Magnetohydrodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE