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Magnetic shielding and vacuum test for passive hydrogen masersVibration tests on high permeability magnetic shields used in the SAO-NRL Advanced Development Model (ADM) hydrogen maser were made. Magnetic shielding factors were measured before and after vibration. Preliminary results indicate considerable (25%) degradation. Test results on the NRL designed vacuum pumping station for the ADM hydrogen maser are also discussed. This system employs sintered zirconium carbon getter pumps to pump hydrogen plus small ion pumps to pump the inert gases. In situ activation tests and pumping characteristics indicate that the system can meet design specifications.
Document ID
19820012658
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gubser, D. U. (Naval Research Lab. Washington, DC, United States)
Wolf, S. A. (Naval Research Lab. Washington, DC, United States)
Jacoby, A. B. (Naval Research Lab. Washington, DC, United States)
Jones, L. D. (Naval Research Lab. Washington, DC, United States)
Date Acquired
August 10, 2013
Publication Date
March 1, 1982
Publication Information
Publication: NASA. Goddard Space Flight Center Proc. of the 13th Ann. Precise Time and Time Interval (PTTI) Appl. and Planning Meeting
Subject Category
Lasers And Masers
Accession Number
82N20532
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19820012620Collected WorksProceedings of the Thirteenth Annual Precise Time and Time Interval (PTTI) Applications and Planning Meeting
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