Permanent magnetic field-prism polarizer for perfect crystal neutron interferometers

被引：10

作者：

Badurek, G

Buchelt, RJ

Kroupa, G

Baron, M

Villa, M

机构：

[1] Univ Technol, Inst Phys Nucl, A-1020 Vienna, Austria

[2] Austrian Univ, Inst Atom, Vienna, Austria

[3] Inst Max Von Laue Paul Langevin, Grenoble, France

来源：

PHYSICA B | 2000年 / 283卷 / 04期

关键词：

neutron polarizers; perfect crystals; neutron interferometry;

D O I：

10.1016/S0921-4526(00)00347-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Spin-dependent bi-refringence of neutrons upon passage through the air gap of a prismatically shaped permanent magnet yoke is used to split a thermal neutron beam in two polarized sub-beams with slightly different directions. This method is ideal to polarize the neutrons within perfect crystal interferometers without loss of intensity. Using a sequential arrangement of two such prisms a splitting larger than twice the rocking-curve width of a perfect crystal Mach-Zehnder-type neutron interferometer has been achieved, yielding a beam polarization of about 97%. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：389 / 392

页数：4

共 49 条

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