Observation of doubly-charged ions of francium isotopes extracted from a gas cell

P. Schury, M. Wada, Y. Ito, D. Kaji, H. Haba, Y. Hirayama, S. Kimura, H. Koura, M. MacCormick, H. Miyatake, J. Y. Moon, K. Morimoto, K. Morita, I. Murray, A. Ozawa, M. Rosenbusch, M. Reponen, A. Takamine, T. Tanaka, Y. X. WatanabeH. Wollnik

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Abstract

Various isotopes of Ac, Ra, Fr, and Rn were produced by fusion-evaporation reactions using a 48Ca beam. The energetic ions were stopped in and extracted from a helium gas cell. The extracted ions were identified using a multi-reflection time-of-fight mass spectrograph. In all cases, it was observed that the predominant charge state for the extracted ions, including the alkali Fr, was 2+.

Original languageEnglish
Pages (from-to)160-165
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume407
DOIs
Publication statusPublished - Sep 15 2017

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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    Schury, P., Wada, M., Ito, Y., Kaji, D., Haba, H., Hirayama, Y., Kimura, S., Koura, H., MacCormick, M., Miyatake, H., Moon, J. Y., Morimoto, K., Morita, K., Murray, I., Ozawa, A., Rosenbusch, M., Reponen, M., Takamine, A., Tanaka, T., ... Wollnik, H. (2017). Observation of doubly-charged ions of francium isotopes extracted from a gas cell. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 407, 160-165. https://doi.org/10.1016/j.nimb.2017.06.014