H L Thayer et al 2003 J. Phys. G: Nucl. Part. Phys. 29 2247 doi:10.1088/0954-3899/29/9/318
H L Thayer1, J Billowes2, P Campbell2, P Dendooven3,4, K T Flanagan2, D H Forest1, J A R Griffith1, J Huikari3, A Jokinen3, R Moore2, A Nieminen3, G Tungate1, S Zemlyanoi2 and J Äystö3
Show affiliationsIsotope shifts and hyperfine structures have been measured for radioisotopes of ionic zirconium using on-line laser spectroscopy at the IGISOL facility in Jyväskylä, where the installation of an ion beam cooler/buncher has significantly improved the experimental sensitivity. Measurements have been made on all the neutron-deficient isotopes from 87Zr to 90Zr, including the isomers 87m,89mZr, and the neutron-rich isotopes from 96Zr to 102Zr. The change in mean square charge radii between the isotopes and the nuclear moments of the odd isotopes have been extracted. The data show a sudden increase in the mean square charge radius at mass A = 100, consistent with an onset of nuclear deformation which has been observed in the gamma ray spectroscopy of isotope chains in this region of the nuclear chart.
32.70.Jz Line shapes, widths, and shifts
27.50.+e 59(less-than-or-equal-to)A(less-than-or-equal-to)89
21.10.Ky Electromagnetic moments
27.60.+j 90(less-than-or-equal-to)A(less-than-or-equal-to)149
42.62.Eh Metrological applications; optical frequency synthesizers for precision spectroscopy
Issue 9 (September 2003)
Received 16 April 2003, in final form 10 June 2003
Published 4 August 2003
H L Thayer et al 2003 J. Phys. G: Nucl. Part. Phys. 29 2247
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