DEVELOPMENT OF LARGE STORAGE BOX ATOMIC HYDROGEN MASER.
Abstract
The principal source of error in absolute time and frequency measurements with the atomic hydrogen maser arises from the effect of the wall surface of the storage container on the frequency of the maser. Although the effect is small and can be measured by experiments using storage bulbs of two different diameters, an error in the absolute frequency determination remains which is about a factor of ten larger than the characteristic frequency instability of the hydrogen maser. One method of improving this limitation is by finding more suitable wall materials. However, even without an improvement in the materials, the wall effect can be reduced by confining the atoms in a larger diameter storage box since the fraction of time an atom spends on the wall is inversely proportional to the storage box diameter. Improved wall materials developed in other studies could be applied as well to give an additional enhancement.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 05, 1968
- Accession Number
- AD0666298
Entities
People
- N. F. Ramsey
Organizations
- Harvard University