JACK AHBOTHROTT 3 0 U U 5 , B.S. Fhye ., M.S. The Ohio State tfinirere ity 195* Approved hy: Adrieer ACKHwxamtnnB This work was done tinder the supervision of Profsssdr C. H. Shaw of the Departnsnt of Physios and Astronomy of the Ohio 8 tate Tkiiverslty. Dr. Shaw's advice and suggestions were Material in bringing this research to a successful conclusion and It Is a pleasure to acknowledge the contribution he has made to the author's scientific training. Other mastoere of the I-Ray laboratory

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... up contributed much to the work and Ideas of the experiment. In particular, the work of Dr. Ha than 8 p£ Sib erg, who assisted In the early preparation of the spectrosMter, and Mr. William Gordon, who shared the long hours of data taking Is acknowledged. Without the Inspiration and patience of my wife, Shirley, the research reported here could not have been successfully realized. Her excellent typing of this dissertation Is a final contribution to my graduate education and I am deeply grateful. Thanks are due to Mr. Carl McWhirt and the men of the Physics Shop for their careful and precise construction of the cryostat and other equipment used.