First successful ionization of Lr (Z = 103) by a surface-ionization technique

Tetsuya K. Sato, Nozomi Sato, Masato Asai, Kazuaki Tsukada, Atsushi Toyoshima, Kazuhiro Ooe, Sunao Miyashita, Matthias Schädel, Yusuke Kaneya, Yuichiro Nagame, Akihiko Osa, Shin Ichi Ichikawa, Thierry Stora, Jens Volker Kratz

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18 Citations (Scopus)


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 256Lr produced in the 249Cf + 11B reaction.

Original languageEnglish
Article number023304
JournalReview of Scientific Instruments
Issue number2
Publication statusPublished - Feb 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Instrumentation


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