Article

The Leuven isotope separator on-line laser ion source

Instituut voor Kern- en Stralingsfysica, University of Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium
Nuclear Physics A (Impact Factor: 1.53). 01/2002; 701(1-4):465c. DOI: 10.1063/1.1146778

ABSTRACT An element-selective laser ion source has been used to produce beams of exotic radioactive nuclei
and to study their decay properties. The operational principle of the ion source is based on selective
resonant laser ionization of nuclear reaction products thermalized and neutralized in a noble gas at
high pressure. The ion source has been installed at the Leuven Isotope Separator On-Line (LISOL),
which is coupled on-line to the cyclotron accelerator at Louvain-la-Neuve. 54,55Ni and 54,55Co
isotopes were produced in light-ion-induced fusion reactions. Exotic nickel, cobalt and copper nuclei
were produced in proton-induced fission of 238U. The b decay of the 68–74Ni, 67–70Co, 70–75Cu and
110–114Rh isotopes has been studied by means of β–γ and γ –γ spectroscopy. Recently, the laser ion
source has been used to produce neutron-deficient rhodium and ruthenium isotopes (91–95Rh, 98Rh,
90,91Ru) near the N = Z line in heavy ion-induced fusion reactions.

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