Spin-polarized radioactive isotope beam produced by tilted-foil technique

Yoshikazu Hirayama, Mototsugu Mihara, Yutaka Watanabe, Sun Chan Jeong, Hiroari Miyatake, Sadao Momota, Takashi Hashimoto, Nobuaki Imai, Kensaku Matsuta, Hironobu Ishiyama, Shin Ichi Ichikawa, Tetsuro Ishii, Takuji Izumikawa, Ichiro Katayama, Hirokane Kawakami, Hirokazu Kawamura, Ichiro Nishinaka, Katsuhisa Nishio, Hiroyuki Makii, Shin Ichi MitsuokaAakihiko Osa, Yoshinori Otokawa, Tetsuya K. Sato, Yasuo Wakabayashi

Research output: Contribution to journalArticlepeer-review

Abstract

The tilted-foil method for producing spin-polarized radioactive isotope beams has been studied using the re-accelerated radioactive 8Li and 123In beams produced at Tokai Radioactive Ion Accelerator Complex (TRIAC) facility. We successfully produced polarization in a 8Li beam of 7.3(5)% using thin polystyrene foils (4.2 μg/cm2). The systematic study of the nuclear polarization as a function of the number of foils and beam energy has been performed, confirming the features of the tilted-foil technique experimentally. After the study, a spin-polarized radioactive 123In beam, which is the heaviest ever polarized in its ground state by this method, has been successfully generated by the tilted-foil method, for the nuclear spectroscopy around the doubly magic nucleus 132Sn.

Original languageEnglish
Pages (from-to)693-696
Number of pages4
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 polarization
  • Tilted-foil technique
  • g-Factor

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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