title: Determination of the beta- branching ratio of 64Cu by mass spectrometric investigations of the decay products in neutron transmuted copper.
abstract: The beta- branching ratio of 64Cu was determined by investigating the resulting decay products in copper doped by neutron transmutation. The numbers of 64Zn and 64Ni atoms were analyzed using isotope dilution analysis combined with thermal ionization mass spectrometry. A beta- branching ratio of (38.06+/-0.30)% was obtained, which agrees with the study of Kawada (Appl. Radiat. Isot. 37 (1) (1986) 7) to a higher accuracy. However, our result differs from the value cited in the NUDAT database of (39.0+/-0.3)%.
authors.affiliation: Federal Institute for Materials Research and Testing (BAM), Berlin, Germany. gabriele.wermann@bam.de
authors.forename: G
authors.initials: G
authors.lastname: Wermann
authors.forename: D
authors.initials: D
authors.lastname: Alber
authors.forename: W
authors.initials: W
authors.lastname: Pritzkow
authors.forename: G
authors.initials: G
authors.lastname: Riebe
authors.forename: J
authors.initials: J
authors.lastname: Vogl
authors.forename: W
authors.initials: W
authors.lastname: Görner