Hydrogen maser frequency standard is more stable by addition of parallel pyrex capillary tube array collimator. With collimator, maser line width has been made as narrow as 0.24 hertz representing fivefold improvement over maser without collimator. Fluorocarbon coating in tubes virtually eliminates energy loss in collimator.
improving maser frequency stability
NASA Tech Briefs ; 4 , 3
1980-04-01
Miscellaneous
No indication
English
Hydrogen-maser frequency standard
NTRS | 1979
|Frequency stabilization of the he-ne maser.
NTRS | 1964
|The MASER 9 and MASER 10 Microgravity Rocket Missions
British Library Conference Proceedings | 2004
|NTIS | 1966
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