A magnetic neutron lens based on an extended Halbach-type permanent sextupole magnet

被引：10

作者：

Oku, Takayuki ^{[1
]}

Yamada, Satoru

Sasao, Hajime

Suzuki, Jun-ichi

Shinohara, Takenao

Hirota, Katsuya

Ikeda, Kazuaki

Tsuzaki, Tsuyosi

Kiyanagi, Yoshiaki

Furusaka, Michihiro

Shimizu, Hirohiko M.

机构：

[1] JAEA, Tokai, Ibaraki 3191195, Japan

[2] RIKEN, Wako, Saitama 3510198, Japan

[3] NEOMAX Co Ltd, Egawa, Osaka 6180013, Japan

[4] Hokkaido Univ, Sapporo, Hokkaido 0608628, Japan

[5] KEK, Tsukuba, Ibaraki 3050801, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2006年 / 385-86卷

关键词：

neutron focusing lens; magnetic neutron lens; polarized neutron; SANS; focusing SANS;

D O I：

10.1016/j.physb.2006.05.416

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have developed a magnetic neutron lens (MNL) based on an extended Halbach-type permanent sextupole magnet. The effective aperture size is 30 mm in diameter and the length is 2400 mm. The sextupole magnetic field distribution vertical bar B vertical bar = (G/2) r(2) with the gradient coefficient G = 10,660 +/- 530 T/m(2) are generated inside the magnet, where r is the distance from the magnet center axis. The neutron-focusing property is investigated by using pulsed polarized neutrons. The obtained results are discussed in comparison with numerical simulation results. The application to the focusing-geometry small-angle neutron scattering experiments is discussed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1225 / 1228

页数：4

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