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Articles 1 - 5 of 5

Full-Text Articles in Physics

Intensities In The Hollow Cathode Discharge , John Philip Heller Jan 1953

Intensities In The Hollow Cathode Discharge , John Philip Heller

Retrospective Theses and Dissertations

The experimental part of this research involved measurements of the brightness of a hollow cathode discharge in the light of various wavelengths of the first spark spectrum of aluminum. The hollow cathode tube was constructed in accord with modern specifications for a light source for high resolution spectroscopy. The line brightnesses were measured under various conditions of operation of the discharge tube. The external parameters which were varied were discharge current, cathode temperature, carrier gas pressure and cathode diameter;The motivation for the experiment was two-fold. Firstly it was desired to obtain empirical information on the optimum conditions for the ...


Transmission Of 0-50 Kilovolt Electrons By Thin Films With Applications To Beta-Ray Spectroscopy , Raymond O. Lane Jan 1953

Transmission Of 0-50 Kilovolt Electrons By Thin Films With Applications To Beta-Ray Spectroscopy , Raymond O. Lane

Retrospective Theses and Dissertations

No abstract provided.


Electrical Properties Of Crystalline Boron , William Corr Shaw Jan 1953

Electrical Properties Of Crystalline Boron , William Corr Shaw

Retrospective Theses and Dissertations

The boron crystals used in this study were prepared by reducing boron tribromide with hydrogen upon contact with a hot (1500°C) tantalum filament. The largest single crystals weighed less than ten micrograms and were a few hundred microns in length. The high purity of the specimens was verified spectrographically and their crystalline nature was verified by means of Laue photographs;Micromanipulative techniques for mounting very small crystals with several electrical contacts were developed. Microscopic single crystals of boron were mounted with as many as five spring loaded tungsten probes. Measurements were made of voltage current characteristics, resistivity, Hall and ...


The Ferromagnetic Properties Of The Rare Earth Metals , James F. Elliott Jan 1953

The Ferromagnetic Properties Of The Rare Earth Metals , James F. Elliott

Retrospective Theses and Dissertations

No abstract provided.


A Proportional Counter Spectrometer Study Of The Beta-Decay Of Radioactive S35, Pm147, Ni63, And C14 , Jack Pitts Mize Jan 1953

A Proportional Counter Spectrometer Study Of The Beta-Decay Of Radioactive S35, Pm147, Ni63, And C14 , Jack Pitts Mize

Retrospective Theses and Dissertations

No abstract provided.