TY - JOUR
T1 - Laser Spectroscopy of Niobium Fission Fragments: First Use of Optical Pumping in an Ion Beam Cooler Buncher
AU - Cheal, B
AU - Baczynska, K
AU - Billowes, J
AU - Campbell, P
AU - Charlwood, FC
AU - Eronen, T
AU - Forest, David
AU - Jokinen, A
AU - Kessler, T
AU - Moore, ID
AU - Reponen, M
AU - Rothe, S
AU - Rueffer, M
AU - Saastamoinen, A
AU - Tungate, Garry
AU - Aysto, J
PY - 2009/6/1
Y1 - 2009/6/1
N2 - A new method of optical pumping in an ion beam cooler buncher has been developed to selectively enhance ionic metastable state populations. The technique permits the study of elements previously inaccessible to laser spectroscopy and has been applied here to the study of Nb. Model independent mean-square charge radii and nuclear moments have been studied for \(^{90,90 m,91,91 m,92,93,99,101,103}\)Nb to cover the region of the N=50 shell closure and N≈60 sudden onset of deformation. The increase in mean-square charge radius is observed to be less than that for Y, with a substantial degree of β softness observed before and after N=60.
AB - A new method of optical pumping in an ion beam cooler buncher has been developed to selectively enhance ionic metastable state populations. The technique permits the study of elements previously inaccessible to laser spectroscopy and has been applied here to the study of Nb. Model independent mean-square charge radii and nuclear moments have been studied for \(^{90,90 m,91,91 m,92,93,99,101,103}\)Nb to cover the region of the N=50 shell closure and N≈60 sudden onset of deformation. The increase in mean-square charge radius is observed to be less than that for Y, with a substantial degree of β softness observed before and after N=60.
U2 - 10.1103/PhysRevLett.102.222501
DO - 10.1103/PhysRevLett.102.222501
M3 - Article
C2 - 19658859
SN - 1079-7114
VL - 102
SP - 222501
JO - Physical Review Letters
JF - Physical Review Letters
IS - 22
ER -