Spin-aligned RI beams via two-step fragmentation reactions

Y. Ichikawa, H. Ueno, Y. Ishii, T. Furukawa, A. Yoshimi, D. Kameda, H. Watanabe, N. Aoi, K. Asahi, D. L. Balabanski, R. Chevrier, J. M. Daugas, N. Fukuda, G. Georgiev, H. Hayashi, H. Iijima, N. Inabe, T. Inoue, M. Ishihara, T. KuboT. Nanao, T. Ohnishi, K. Suzuki, M. Tsuchiya, H. Takeda, M. M. Rajabali

Research output: Contribution to journalArticle

Abstract

A method to produce spin-aligned rare isotope (RI) beams has been developed, where a scheme of two-step projectile fragmentation to produce the RI of interest with high spin alignment and a technique of momentum-dispersion matching are combined. Effectiveness of the present method was demonstrated in an experiment at the RIKEN RIBF, where an RI beam of 32Al with spin alignment of 8(1)% was successfully produced from a primary beam of 48Ca, via an intermediate RI of 33Al. Figure of merit of the present method was found to be more than 50 times greater than that of the conventional method employing single-step projectile fragmentation.

Original languageEnglish
Pages (from-to)769-773
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume317
Issue numberPART B
DOIs
Publication statusPublished - 2013 Dec 15

Keywords

  • Nuclear moment
  • Nuclear spin
  • RI beam

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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    Ichikawa, Y., Ueno, H., Ishii, Y., Furukawa, T., Yoshimi, A., Kameda, D., Watanabe, H., Aoi, N., Asahi, K., Balabanski, D. L., Chevrier, R., Daugas, J. M., Fukuda, N., Georgiev, G., Hayashi, H., Iijima, H., Inabe, N., Inoue, T., Ishihara, M., ... Rajabali, M. M. (2013). Spin-aligned RI beams via two-step fragmentation reactions. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 317(PART B), 769-773. https://doi.org/10.1016/j.nimb.2013.04.071