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Filtering by: Creator Addicott, Donald James Degree Name Doctor of Philosophy (Ph.D.)

Petrology of selected volcanic rocks of the Harney Basin, Oregon

Creator:

Parker, Donald James

Abstract:

The volcanic rocks of the Harney Basin comprise a bimodal assemblage of rhyolites (SiO₂ greater than 72%) and basalts (SiO₂ less than 52%). Tholeiitic basalts account for 15 rocks analyzed and alkalic basalts for three. Most basalts contain phenocrysts of olivine and plagioclase. Pyroxene phenocrysts were not found. Rhyolite flows...

Resource Type:

Dissertation
Observation of fine structure interference effects in Lyman-Beta radiation from beamfoil excited hydrogen atoms

Creator:

Lynch, Donald James

Abstract:

Zero-field quantum beats were observed in Lyman-Beta emission from hydrogen atoms formed by beam-foil excitation. The energy dependence of the magnetic substate relative cross sections for the n=3, L=1 states of H was determined for beam energies in the range from 230 to 500 keV per atom. The theoretical values...

Resource Type:

Dissertation

Full Text:

Lyman-Beta radiation from beamfoil excited hydrogen atoms AN ABSTRACT OF THE THESIS OF DONALD JAMES