Selective laser ionization of radioactive Ni-isotopes
Jokinen, A × Evensen, AH Kugler, E Lettry, J Ravn, H Van Duppen, Piet Erdmann, N Jading, Y Kohler, S Kratz, KL Trautman, N Wohr, A Fedoseyev, VN Mishin, VI Tikhonov, V #
Elsevier science bv
Nuclear Instruments and Methods in Physics Research. Section B, Beam interactions with materials and atoms vol:126 issue:1-4 pages:95-99
A chemically selective laser ion source based on resonance ionization of atoms in a hot cavity has been applied in the study of Ni-isotopes at the CERN-ISOLDE on-line isotope separator, Laser ionization enhanced the yields of long-lived Ni-isotopes almost four orders of magnitude when compared to the yields obtained with the surface ionization mode of the source. As a result, high yields of long-lived Ni-isotopes were obtained. Separation efficiencies of 0.3 and 0.8% were obtained for Ni produced in uranium-carbide, produced from uranium-di-pthalocyanine, and Ta-foil targets, respectively, Ni was found to be released very slowly from the present target and ion source combination.