Hydrogen Maser Research and Development at Sigma Tau Standards and Tests of Sigma Tau Masers at the Naval Research Laboratory

G.A. Gifford and J.D. White

Abstract:	Two hydrogen masers of the active oscillator type using automatic cavity stabilization, but without active feedback qain, were designed, built and tested by Sigma Tau Standards for the Naval Research Laboratory (NRL). The masers were tested at Sigma Tau Standards prior to shipment and again at the NRL for a period of ten weeks following delivery. In addition, Sigma Tau has modified a Small Hydrogen Maser previously built to operate with cavity feedback to become an oscillating maser without feedback.
Published in:	Proceedings of the 17th Annual Precise Time and Time Interval Systems and Applications Meeting December 3 - 5, 1985 DuPont Plaza Hotel Washington, DC
Pages:	105 - 128
Cite this article:	Gifford, G.A., White, J.D., "Hydrogen Maser Research and Development at Sigma Tau Standards and Tests of Sigma Tau Masers at the Naval Research Laboratory," Proceedings of the 17th Annual Precise Time and Time Interval Systems and Applications Meeting, Washington, DC, December 1985, pp. 105-128.
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