Highly polarized very cold neutrons through a permanent magnet quadrupole

Kaoru Taketani, Kenji Mishima, Takashi Ino, Tamaki Yoshioka, Suguru Muto, Takahiro Morishima, Hirohiko M. Shimizu, Takayuki Oku, Junichi Suzuki, Takenao Shinohara, Kenji Sakai, Hiromi Sato, Katsuya Hirota, Yoshie Otake, Masaaki Kitaguchi, Masahiro Hino, Yoshichika Seki, Yoshihisa Iwashita, Masako Yamada, Masahiro IchikawaTakanori Sugimoto, Shinsuke Kawasaki, Sachio Komamiya, Yoshio Kamiya, Hidetoshi Otono, Satoru Yamashita, Peter Geltenbort

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抜粋

We obtained highly polarized very cold neutrons through a quadrupole magnet with a large aperture. When neutrons go through a quadrupole magnet, parallel-spin neutrons are attracted to the magnet axis and anti-parallel-spin neutrons are repelled off the axis. Therefore, the neutrons through a sufficiently long quadrupole magnet have completely parallel-spin. At the downstream of the quadrupole magnet, we placed another quadrupole magnet to divide neutrons into two regions depending on their spin directions. We obtained the neutron polarization from the integrated count of the two regions and found it was 99.88±0.09 (stat.)±0.05 (syst.)%.

元の言語英語
ページ(範囲)2643-2645
ページ数3
ジャーナルPhysica B: Condensed Matter
404
発行部数17
DOI
出版物ステータス出版済み - 9 1 2009
外部発表Yes

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

これを引用

Taketani, K., Mishima, K., Ino, T., Yoshioka, T., Muto, S., Morishima, T., ... Geltenbort, P. (2009). Highly polarized very cold neutrons through a permanent magnet quadrupole. Physica B: Condensed Matter, 404(17), 2643-2645. https://doi.org/10.1016/j.physb.2009.06.045