Wall shift in frequency of proposed variable-shift maser that is caused by collisions between hydrogen atoms and container walls, could easily be determined, thereby allowing building of frequency standard with accuracy of 1 part in 10 to 14th power.
Hydrogen-maser frequency standard
NASA Tech Briefs ; 3 , 4
1979-03-01
Miscellaneous
No indication
English
Hydrogen maser frequency comparison with a cesium beam standard
TIBKAT | 1966
|NTRS | 1978
|improving maser frequency stability
NTRS | 1980
|A spaceborne hydrogen maser designs
NTRS | 1978
|