Campbell P, Thayer HL, Billowes J, Dendooven P, Flanagan KT, Forest DH, Griffith JAR, Huikari J, Jokinen A, Moore R, Nieminen A, Tungate G, Zemlyanoi S, Aystö J. Laser spectroscopy of cooled zirconium fission fragments.
PHYSICAL REVIEW LETTERS 2002;
89:082501. [PMID:
12190460 DOI:
10.1103/physrevlett.89.082501]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2002] [Indexed: 05/23/2023]
Abstract
The first on-line laser spectroscopy of cooled fission fragments is reported. The r ions, produced in uranium fission, were extracted and separated using an ion guide isotope separator. The ions were cooled and bunched for collinear laser spectroscopy by a gas-filled linear Paul trap. New results for nuclear mean-square charge radii, dipole, and quadrupole moments are reported across the N=60 shape change. The mean-square charge radii are found to be almost identical to those of the Sr isotones and previously offered modeling of the radial changes is critically reviewed.
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