Discovery of neutron-rich Co and Fe isotopes in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Pu</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>239</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>(<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="italic">n</mi></mrow><mrow><mi mathvariant="normal">th</mi></mrow></msub></mrow></math>,f): Yields and half-lives

M. Bernas; P. Armbruster; S. Czajkowski; H. Faust; J. P. Bocquet; R. Brissot

doi:10.1103/PhysRevLett.67.3661

Discovery of neutron-rich Co and Fe isotopes in ${}^{239}{Pu}$ ( $n_{th}$ ,f): Yields and half-lives

M. Bernas, P. Armbruster, S. Czajkowski, H. Faust, J. P. Bocquet, and R. Brissot

Phys. Rev. Lett. 67, 3661 – Published 23 December 1991

Abstract

Co and Fe isotopes have been identified in thermal-neutron-induced fission of ${}^{239}{Pu}$ . The yields of the very neutron-rich isotopes ${}^{69}{Co}$ , ${}^{68}{Co}$ , and ${}^{68}{Fe}$ were measured and their β-decay half-lives were obtained from time correlations between detection of the selected isotopes and of the β particles from their decay.