Laser spectroscopy of cooled zirconium fission fragments.
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.
Campbell
P
P
Schuster Laboratory, University of Manchester, Manchester M13 9PL, United Kingdom.
Thayer
H L
HL
Billowes
J
J
Dendooven
P
P
Flanagan
K T
KT
Forest
D H
DH
Griffith
J A R
JA
Huikari
J
J
Jokinen
A
A
Moore
R
R
Nieminen
A
A
Tungate
G
G
Zemlyanoi
S
S
Aystö
J
J