title: First successful ionization of Lr (Z = 103) by a surface-ionization technique.
abstract: We have developed a surface ionization ion-source as part of the JAEA-ISOL (Isotope Separator On-Line) setup, which is coupled to a He/CdI2 gas-jet transport system to determine the first ionization potential of the heaviest actinide lawrencium (Lr, Z = 103). The new ion-source is an improved version of the previous source that provided good ionization efficiencies for lanthanides. An additional filament was newly installed to give better control over its operation. We report, here, on the development of the new gas-jet coupled surface ion-source and on the first successful ionization and mass separation of 27-s (256)Lr produced in the (249)Cf + (11)B reaction.
authors: Advanced Science Research Center, Japan Atomic Energy Agency (JAEA), 2-4 Shirakata-shirane, Tokai-mura, Ibaraki 319-1195, Japan. sato.tetsuya@jaea.go.jp
authors: Tetsuya K
authors: TK
authors: Sato
authors: Nozomi
authors: N
authors: Sato
authors: Masato
authors: M
authors: Asai
authors: Kazuaki
authors: K
authors: Tsukada
authors: Atsushi
authors: A
authors: Toyoshima
authors: Kazuhiro
authors: K
authors: Ooe
authors: Sunao
authors: S
authors: Miyashita
authors: Matthias
authors: M
authors: Schädel
authors: Yusuke
authors: Y
authors: Kaneya
authors: Yuichiro
authors: Y
authors: Nagame
authors: Akihiko
authors: A
authors: Osa
authors: Shin-ichi
authors: S
authors: Ichikawa
authors: Thierry
authors: T
authors: Stora
authors: Jens Volker
authors: JV
authors: Kratz