2009年9月1日
Highly polarized very cold neutrons through a permanent magnet quadrupole
Physica B: Condensed Matter
- 巻
- 404
- 号
- 17
- 開始ページ
- 2643
- 終了ページ
- 2645
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.physb.2009.06.045
- 出版者・発行元
- ELSEVIER SCIENCE BV
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.)%. © 2009 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.physb.2009.06.045
- ISSN : 0921-4526
- SCOPUS ID : 68649088520