title: On-line ion cooling and bunching for collinear laser spectroscopy.
abstract: 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 (10-20 micros) bunch. In collinear laser measurements the signal-to-noise ratio has been improved by a factor of 2 x 10(4), allowing spectroscopic measurements to be made with ion-beam fluxes of approximately 50 ions s(-1). The bunching method has been demonstrated in an on-line isotope shift and hyperfine structure measurement on radioactive (175)Hf.
authors.affiliation: Department of Physics, University of Jyväskylä, PB 35 (YFL) FIN-40351 Jyväskylä, Finland.
authors.forename: A
authors.initials: A
authors.lastname: Nieminen
authors.forename: P
authors.initials: P
authors.lastname: Campbell
authors.forename: J
authors.initials: J
authors.lastname: Billowes
authors.forename: D H
authors.initials: DH
authors.lastname: Forest
authors.forename: J A R
authors.initials: JA
authors.lastname: Griffith
authors.forename: J
authors.initials: J
authors.lastname: Huikari
authors.forename: A
authors.initials: A
authors.lastname: Jokinen
authors.forename: I D
authors.initials: ID
authors.lastname: Moore
authors.forename: R
authors.initials: R
authors.lastname: Moore
authors.forename: G
authors.initials: G
authors.lastname: Tungate
authors.forename: J
authors.initials: J
authors.lastname: Aystö