Title :
Progress toward a cryogenic /sup 199/Hg/sup +/ ion frequency standard
Author :
Poitzsch, M.E. ; Bergquist, J.C. ; Itano, W.M. ; Wineland, D.J.
Author_Institution :
Time & Frequency Div., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
June 27 1994-July 1 1994
Abstract :
We have observed linear "crystals" of up to tens of laser-cooled /sup 199/Hg/sup +/ ions in a new cryogenic linear rf ion trap that operates at liquid helium temperature and is designed for use as a prototype 40.5 GHz frequency standard with high accuracy and stability.<>
Keywords :
beam handling techniques; cryogenics; frequency measurement; measurement standards; mercury (metal); particle traps; positive ions; radiation pressure (atoms); 40.5 GHz; Hg; cryogenic linear RF ion trap; frequency standard; laser-cooled /sup 199/Hg/sup +/ ions; linear crystals; liquid helium temperature; stability; Charge carrier processes; Copper; Cryogenics; Crystals; Frequency; Mercury (metals); Optical resonators; Superconducting coils; Superconducting microwave devices; Testing;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333302
