Phys. Rev. Lett. 88, 094801 (2002) [4 pages]On-Line Ion Cooling and Bunching for Collinear Laser SpectroscopyReceived 13 November 2001; published 14 February 2002 A new method has been developed for increasing the sensitivity of collinear laser spectroscopy. The method utilizes an ion-trapping technique in which a continuous low-energy ion beam is cooled and accumulated in a linear Paul trap and subsequently released as a short ( 10–20μs) bunch. In collinear laser measurements the signal-to-noise ratio has been improved by a factor of 2×104, allowing spectroscopic measurements to be made with ion-beam fluxes of ∼50ionss-1. The bunching method has been demonstrated in an on-line isotope shift and hyperfine structure measurement on radioactive 175Hf. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.094801
DOI:
10.1103/PhysRevLett.88.094801
PACS:
41.85.-p, 42.62.Fi
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