6533b833fe1ef96bd129b771
RESEARCH PRODUCT
On-Line Ion Cooling and Bunching for Collinear Laser Spectroscopy
Iain MooreA. NieminenJ. A. R. GriffithJussi HuikariJ. BillowesAri JokinenR. MooreG. TungateJuha ÄYstöD. H. ForestPaul Campbellsubject
PhysicsIon beamGeneral Physics and AstronomyLaserIonlaw.inventionlawPhysics::Accelerator PhysicsPhysics::Atomic PhysicsIon trapSensitivity (control systems)Atomic physicsSpectroscopyHyperfine structureLine (formation)description
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 ( $10--20\ensuremath{\mu}\mathrm{s}$) bunch. In collinear laser measurements the signal-to-noise ratio has been improved by a factor of $2\ifmmode\times\else\texttimes\fi{}{10}^{4}$, allowing spectroscopic measurements to be made with ion-beam fluxes of $\ensuremath{\sim}50\mathrm{ions}{\mathrm{s}}^{\ensuremath{-}1}$. The bunching method has been demonstrated in an on-line isotope shift and hyperfine structure measurement on radioactive ${}^{175}\mathrm{Hf}$.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-02-14 | Physical Review Letters |