DEVELOPMENT OF MILLIMETER AND SUBMILLIMETER MASER DEVICES.
Interim technical rept. no. 4, 1 Feb-31 May 64.
WESTINGHOUSE DEFENSE AND SPACE CENTER BALTIMORE MD
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A zero-magnetic-field maser was operated at a frequency of 81.3 gc with the iron ion in rutile, a zero-magnetic-field maser was operated at a frequency of 78 gc with the iron ion in zinc tungstate, and the first reported paramagnetic resonance absorption was observed at frequencies near 330 gc with the manganese ion Mn3 in rutile. Since the 330-gc paramagnetic resonance experiments were very crude, a more sophisticated system is being designed. Author