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: Article

2 引用 (Scopus)

抄録

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English
ページ（範囲）2643-2645
ページ数3
ジャーナルPhysica B: Condensed Matter
巻404
発行部数17
DOI
出版物ステータスPublished - 2009 9 1
外部発表Yes

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cold neutrons
permanent magnets
Permanent magnets
Neutrons
magnets
Magnets
quadrupoles
neutrons
apertures
Polarization
polarization

ASJC Scopus subject areas

  • 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

Highly polarized very cold neutrons through a permanent magnet quadrupole. / Taketani, Kaoru; Mishima, Kenji; Ino, Takashi; Yoshioka, Tamaki; Muto, Suguru; Morishima, Takahiro; Shimizu, Hirohiko M.; Oku, Takayuki; Suzuki, Junichi; Shinohara, Takenao; Sakai, Kenji; Sato, Hiromi; Hirota, Katsuya; Otake, Yoshie; Kitaguchi, Masaaki; Hino, Masahiro; Seki, Yoshichika; Iwashita, Yoshihisa; Yamada, Masako; Ichikawa, Masahiro; Sugimoto, Takanori; Kawasaki, Shinsuke; Komamiya, Sachio; Kamiya, Yoshio; Otono, Hidetoshi; Yamashita, Satoru; Geltenbort, Peter.

：: Physica B: Condensed Matter, 巻 404, 番号 17, 01.09.2009, p. 2643-2645.

研究成果: Article

Taketani, K, Mishima, K, Ino, T, Yoshioka, T, Muto, S, Morishima, T, Shimizu, HM, Oku, T, Suzuki, J, Shinohara, T, Sakai, K, Sato, H, Hirota, K, Otake, Y, Kitaguchi, M, Hino, M, Seki, Y, Iwashita, Y, Yamada, M, Ichikawa, M, Sugimoto, T, Kawasaki, S, Komamiya, S, Kamiya, Y, Otono, H, Yamashita, S & Geltenbort, P 2009, 'Highly polarized very cold neutrons through a permanent magnet quadrupole', Physica B: Condensed Matter, 巻. 404, 番号 17, pp. 2643-2645. https://doi.org/10.1016/j.physb.2009.06.045
Taketani K, Mishima K, Ino T, Yoshioka T, Muto S, Morishima T その他. Highly polarized very cold neutrons through a permanent magnet quadrupole. Physica B: Condensed Matter. 2009 9 1;404(17):2643-2645. https://doi.org/10.1016/j.physb.2009.06.045
Taketani, Kaoru ; Mishima, Kenji ; Ino, Takashi ; Yoshioka, Tamaki ; Muto, Suguru ; Morishima, Takahiro ; Shimizu, Hirohiko M. ; Oku, Takayuki ; Suzuki, Junichi ; Shinohara, Takenao ; Sakai, Kenji ; Sato, Hiromi ; Hirota, Katsuya ; Otake, Yoshie ; Kitaguchi, Masaaki ; Hino, Masahiro ; Seki, Yoshichika ; Iwashita, Yoshihisa ; Yamada, Masako ; Ichikawa, Masahiro ; Sugimoto, Takanori ; Kawasaki, Shinsuke ; Komamiya, Sachio ; Kamiya, Yoshio ; Otono, Hidetoshi ; Yamashita, Satoru ; Geltenbort, Peter. / Highly polarized very cold neutrons through a permanent magnet quadrupole. ：: Physica B: Condensed Matter. 2009 ; 巻 404, 番号 17. pp. 2643-2645.
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T1 - Highly polarized very cold neutrons through a permanent magnet quadrupole

AU - Taketani, Kaoru

AU - Mishima, Kenji

AU - Ino, Takashi

AU - Yoshioka, Tamaki

AU - Muto, Suguru

AU - Morishima, Takahiro

AU - Shimizu, Hirohiko M.

AU - Oku, Takayuki

AU - Suzuki, Junichi

AU - Shinohara, Takenao

AU - Sakai, Kenji

AU - Sato, Hiromi

AU - Hirota, Katsuya

AU - Otake, Yoshie

AU - Kitaguchi, Masaaki

AU - Hino, Masahiro

AU - Seki, Yoshichika

AU - Iwashita, Yoshihisa

AU - Yamada, Masako

AU - Ichikawa, Masahiro

AU - Sugimoto, Takanori

AU - Kawasaki, Shinsuke

AU - Komamiya, Sachio

AU - Kamiya, Yoshio

AU - Otono, Hidetoshi

AU - Yamashita, Satoru

AU - Geltenbort, Peter

PY - 2009/9/1

Y1 - 2009/9/1

N2 - 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.)%.

AB - 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.)%.

KW - Neutron polarizer

KW - Polarized neutron

KW - Quadrupole magnet

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DO - 10.1016/j.physb.2009.06.045

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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