Design and experimental tests of a novel neutron spin analyzer for wide angle spin echo spectrometers.
This paper describes the design and experimental tests of a novel neutron spin analyzer optimized for wide angle spin echo spectrometers. The new design is based on nonremanent magnetic supermirrors, which are magnetized by vertical magnetic fields created by NdFeB high field permanent magnets. The solution presented here gives stable performance at moderate costs in contrast to designs invoking remanent supermirrors. In the experimental part of this paper we demonstrate that the new design performs well in terms of polarization, transmission, and that high quality neutron spin echo spectra can be measured.
Institut Laue-Langevin, BP 156, F-38042 Grenoble Cedex 9, France.
Peter
P
Fouquet
Bela
B
Farago
Ken H
KH
Andersen
Phillip M
PM
Bentley
Gilles
G
Pastrello
Iain
I
Sutton
Eric
E
Thaveron
Fréderic
F
Thomas
Evgeny
E
Moskvin
Catherine
C
Pappas