# Hydrogen-Maser Principles and Techniques

 Title: Hydrogen-Maser Principles and Techniques Author: Crampton, S. B.; Peters, H. E.; Berg, Howard; Ramsey, Norman; Vessot, Robert F. C.; Vanier, Jacques; Kleppner, Daniel Note: Order does not necessarily reflect citation order of authors. Citation: Kleppner, Daniel, Howard C. Berg, S. B. Crampton, Norman F. Ramsey, Robert F. C. Vessot, H. E. Peters, and Jacques Vanier. 1965. Hydrogen-maser principles and techniques. Physical Review 138(4A): A972-A983. Full Text & Related Files: Berg_Hydrogen-MaserPrinciples.pdf (2.744Mb; PDF) Abstract: Techniques and design principles relevant to the construction and operation of a hydrogen maser are presented in detail. These include methods for the generation of atomic hydrogen, state selection, design of the microwave cavity, production of very low magnetic fields, coating the hydrogen storage bulb, and tuning the maser. A figure of merit is introduced which indicates the optimum choice of parameters. Published Version: http://dx.doi.org/10.1103/PhysRev.138.A972 Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:3203709 Downloads of this work: