Computer Science – Performance
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..dmp.p6030h&link_type=abstract
American Physical Society, DAMOP Meeting, May 29-June 1, 2002 Williamsburg, VA, Bulletin of the American Physical Society, Vol.
Computer Science
Performance
Scientific paper
We are developing a cryogenic hydrogen maser (CHM). This device, which operates at 0.5 K and utilizes superfluid helium films to store the masing hydrogen atoms, is predicted to have frequency stability one to three orders of magnitude better than the conventional room temperature hydrogen maser. Recently, we achieved active oscillation of the CHM with an improved atom storage bulb, and are currently optimizing its frequency stability. We will use the CHM to investigate hyperfine-induced effects in cold hydrogen-hydrogen spin-exchange collisions, effects which are relevant to general cold atomic clock performance and cold atomic collision theory. We will present details of the apparatus and an overview of the proposed spin-exchange studies.
Humphrey M. A.
Mattison Edward
Phillips David F.
Vessot Robert F. C.
Walsworth Ronald L.
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