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An Investigation Of The Effect Of High Temperature On The Schumann-Runge Ultraviolet Absorption Continuum Of Oxygen, John Stanton Evans

Masters Theses

A theoretical and experimental investigation of the absorption coefficient of molecular oxygen at high temperature is reported here. The wavelength range covered is in the vacuum ultraviolet region from 1300 A to 1740 A. The theoretical treatment covers all temperatures from 300° to 10,000° K. The experimental investigation was carried out in the temperature range of 4,000° to 10,000° K. All values of the absorption coefficient found apply only to oxygen for which the vibrational degree of freedom is fully excited.

The final results for the high temperature absorption coefficient as a function of temperature and wavelength are listed in …

A Cell-Center Distribution Function For Liquid Argon, Arthur M. Soellner

Masters Theses

"A theoretical expression for a cell-center distribution function was developed using a fundamental statistical mechanics approach. A free volume picture of the liquid was used with each atom located in a spherical cell formed by its nearest neighbors. Cell-center density distribution curves were obtained for liquid argon for temperatures of 84.4°K, 91.8°K, 126.7°K, 144.1°K, and 149.3°K and for argon gas at 149.3°K, and a comparison made with the experimental atomic distribution curves obtained by Eisenstein. For the first two temperatures a sharper, more definite structure was predicted by the cell model. For the remaining four temperatures, with the assumptions made, …

A Preliminary Search For Subionizers, Joseph B. Hughes

Masters Theses

"A number of physicists of recent years have been attempting to explain the basic nature of the universe in terms of particles. A few particles have been predicted theoretically, and some of these, along with many others have appeared experimentally, Searches for them have presented some interesting experimental problems and brought forth some invaluable experimental apparatus. One of these devices is the Wilson cloud chamber, with which this thesis is concerned.

Of the particles that have been discovered thus far, only the electron and the proton appear to be stable. The rest ultimately decay by the emission of photons and …