Accession Number : ADA331609
Title : Investigation of Atomic Physics and Frequency Stability with a Croygenic Hydrogen Laser.
Descriptive Note : Final rept 15 Jan 94-14 Jun 97,
Corporate Author : SMITHSONIAN INSTITUTION CAMBRIDGE MA
Personal Author(s) : Walsworth, Ronald L.
PDF Url : ADA331609
Report Date : JUN 1997
Pagination or Media Count : 9
Abstract : Research has been conducted on two new atomic clocks: the cryogenic hydrogen maser and the double-bulb rubidium maser. The cryogenic hydrogen maser (CHM) operates at low temperatures, and may provide frequency stability that is one to three orders of magnitude better than a room temperature hydrogen maser because of greatly reduced thermal noise and larger signal power. The double-bulb rubidium maser (DJ3RM) may have frequency stability comparable to that of a room temperature hydrogen maser but in a smaller, more robust, and lower cost package.
Descriptors : *HYDROGEN, *CRYOGENICS, *MASERS, *ATOMIC CLOCKS, FREQUENCY, LOW TEMPERATURE, STABILITY, LASERS, ROOM TEMPERATURE, SIGNALS, POWER, NOISE REDUCTION, NOISE(ELECTRICAL AND ELECTROMAGNETIC), THERMAL RESISTANCE, NUCLEAR PHYSICS.
Subject Categories : Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE