ISSN:
1432-0649
Keywords:
35
;
32
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The second-order Doppler shift is an important source of systematic error in rf quadrupole trapped ion frequency standards. This shift can be reduced by cooling the secular motion of the ion cloud with a light background gas at low pressure. Using a thermalized ion cloud model, it is possible to relate the Doppler shift to the temperature of the ion cloud. It is shown that, in practice, the measured frequency of the first-order Doppler sidebands can be used to determine the ion cloud temperature.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00697492
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