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Filtering by: Degree Name Doctor of Philosophy (Ph.D.) Subject Electric discharges through gases

Spectral time-resolution of light from microwave discharges in helium

Creator:

Tynes, Arthur Richard

Abstract:

Temporal variations in individual spectrum lines emitted by a microwave discharge in pure helium are investigated: The discharge is produced in a quartz tube located inside of a section of waveguide which carries pulsed 3 centimeter microwaves. The helium used is purified by a three-fold process consisting of treatment with...

Resource Type:

Dissertation
Experimental determinations of electron energy distributions for Townsend discharges in helium gas

Creator:

Roberts, Thomas David

Abstract:

The energy distribution of electrons in Townsend discharges in helium has been experimentally investigated in a direct fashion. A discharge is initiated between parallel plates of a small cell mounted at the center of a spherical retarding field energy analyzer. The anode of the cell is perforated and some electrons...

Resource Type:

Dissertation