First results from laser spectroscopy on bunched radioactive beams from the JYFL ion-beam coolerP. Campbell1, A. Nieminen2, J. Billowes1, P. Dendooven2, K.T. Flanagan1, D.H. Forest3, Yu.P. Gangrsky4, J.A.R. Griffith3, J. Huikari2, A. Jokinen2, I.D. Moore1, R. Moore1, H.L. Thayer3, G. Tungate3, S.G. Zemlyanoi 4 and J. Äystö2
1 Schuster Laboratory, University of Manchester, Manchester M13 9PL, UK
2 Department of Physics, University of Jyväskylä, Jyväskylä SF-403 51, Finland
3 Department of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK
4 Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscow Region, Russia
(Received: 21 March 2002 / Published online: 31 October 2002)
A new RFQ ion-beam cooler and buncher, installed after the mass-separating magnet of the ion guide isotope separator, IGISOL, JYFL, has dramatically increased the scope of on-line laser spectroscopy at this facility. The device, operated in a bunching mode, has permitted new measurements on short-lived radionuclei in the Ti, Zr and Hf chains at a sensitivity two orders of magnitude greater than that previously achieved. The device has also opened new prospects for laser-based nuclear spectroscopy at the facility, particularly collinear resonance ionisation spectroscopy.
29.25.Rm - Sources of radioactive nuclei.
32.10.Fn - Fine and hyperfine structure.
© Società Italiana di Fisica, Springer-Verlag 2002