Wayne Cooke

Publication Date


Advisor(s) - Committee Chair

W.G. Buckman

Degree Program

Department of Physics and Astronomy

Degree Type

Master of Science


Since the advent of the laser there has appeared a multitude of scientific papers describing the various parameters that would affect the lasing action of the ruby laser. Many investigations have been carried out to determine the efficiency of the R-line fluorescence in ruby: however very little work has been done concerning the X-ray-induced luminescence of ruby.

Certainly the applications to laser technology would be of sufficient importance to merit a study of ruby under continuous irradiation, although this was not the main stimulus that motivated this investigation. The original program of study was undertaken to determine if there existed any relation between thermoluminescence and X-ray-induced luminescence. The samples that were chosen for study were the alkali-halides, ruby and sapphire. After some interesting preliminary observations it was apparent that time would not permit a detailed study of all the samples mentioned. Owing to the important applications of ruby, all experimental efforts were concentrated on the ruby samples.

The purpose of this investigation was:

1) Study the X-ray-induced luminescence of ruby as a function of temperature, chromium concentration, and polarization.

2) Observe the thermoluminescence of ruby and compare it to the X-ray-induced luminescence of ruby.

3) Determine the thermal energies of activation for the ruby samples.

These observations were made over a temperature range from room temperature (23°C) to 400°C.


Astrophysics and Astronomy | Physical Sciences and Mathematics | Physics