Permanent magnetic field-prism polarizer for perfect crystal neutron interferometers

G. Badurek, R. J. Buchelt, G. Kroupa, M. Baron, M. Villa

Research output: Contribution to journalArticlepeer-review

Abstract

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-Zehndertype neutron interferometer has been achieved, yielding a beam polarization of about 97%. © 2000 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)389-392
Number of pages4
JournalPhysica B: Condensed Matter
Volume283
Issue number4
DOIs
Publication statusPublished - 2000
Externally publishedYes

Keywords

  • Neutron interferometry
  • Neutron polarizers
  • Perfect crystals

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