Mass separation of neutron-rich isotopes using a gas-jet coupled thermal ion source

S. Ichikawa, M. Asai, K. Tsukada, A. Osa, T. Ikuta, N. Shinohara, H. Iimura, Y. Nagame, Y. Hatsukawa, I. Nishinaka, K. Kawade, H. Yamamoto, M. Shibata, Y. Kojima

研究成果: ジャーナルへの寄稿学術誌査読

19 被引用数 (Scopus)

抄録

A gas-jet coupled thermal ion source was installed in the isotope separator on line at the JAERI tandem accelerator. It was used for separation of neutron-rich isotopes produced in the reaction 238U(15 MeV-p, fission). The separation efficiencies of the whole system were measured to be 3.3% for 140Cs (T1/2 = 63.7 s), 2.0% for 144La (T1/2 = 40.8 s), 2.2% for 148Pr (T1/2 = 2.0 m), 1.2% for 156Pm (T1/2= 26.7 s) and 1.0% for 160Eu (T1/2 = 44 s). A long sticking time of La atoms on the ionizer surface gave a low efficiency of about 0.1% for 148La (T1/2 = 1.05 s). The first observation of a new isotope 166Tb was carried out using its monoxide ions from this ion source: T1/2(166Tb) = 21±6 s.

本文言語英語
ページ(範囲)330-334
ページ数5
ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
374
3
DOI
出版ステータス出版済み - 6月 1 1996
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学
  • 器械工学

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