2004年7月
Demonstration of a solid deuterium source of ultra-cold neutrons
PHYSICS LETTERS B
- 巻
- 593
- 号
- 開始ページ
- 55
- 終了ページ
- 60
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.physletb.2004.04.048
- 出版者・発行元
- ELSEVIER SCIENCE BV
Ultra-cold neutrons (UCN), neutrons with energies low enough to be confined by the Fermi potential in material bottles, are playing an increasing role in measurements of fundamental properties of the neutron. The ability to manipulate UCN with material guides and bottles, magnetic fields, and gravity can lead to experiments with lower systematic errors than have been obtained in experiments with cold neutron beams. The UCN densities provided by existing reactor sources limit these experiments. The promise of much higher densities from solid deuterium sources has led to proposed facilities coupled to both reactor and spallation neutron sources. In this Letter we report on the performance of a prototype spallation neutron-driven solid deuterium source. This source produced bottled UCN densities of 145 +/- 7 UCN/cm(3), about three times greater than the largest bottled UCN densities previously reported. These results indicate that a production UCN source with substantially higher densities should be possible. (C) 2004 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.physletb.2004.04.048
- ISSN : 0370-2693
- Web of Science ID : WOS:000222788600008