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Generalization of the classical xyz-polarization analysis technique to out-of-plane and inelastic scattering

Ehlers, G. ; Stewart, J. R. ; Wildes, A. R. ; Deen, Pascale LU and Andersen, Ken LU (2013) In Review of Scientific Instruments 84(9).
Abstract
The technique of longitudinal ("xyz") polarization analysis has been used successfully for many years to study disordered magnetic materials in thermal and cold neutron diffraction experiments. The technique allows the simultaneous and unambiguous separation of the nuclear, magnetic, and nuclear spin-incoherent contributions to the scattering. The technical advances seen in recent years, such as the availability of polarized He-3 analyzer cells to cover a large detector solid angle, the ability to detect out-of-plane scattering in a multi-detector, and a significant increase of the usable beam divergence, call for a generalization of the method. A general treatment of the formalism for carrying out neutron polarization analysis will be... (More)
The technique of longitudinal ("xyz") polarization analysis has been used successfully for many years to study disordered magnetic materials in thermal and cold neutron diffraction experiments. The technique allows the simultaneous and unambiguous separation of the nuclear, magnetic, and nuclear spin-incoherent contributions to the scattering. The technical advances seen in recent years, such as the availability of polarized He-3 analyzer cells to cover a large detector solid angle, the ability to detect out-of-plane scattering in a multi-detector, and a significant increase of the usable beam divergence, call for a generalization of the method. A general treatment of the formalism for carrying out neutron polarization analysis will be given in this paper, which describes a possible method of usage at a future, modern diffractometer or inelastic spectrometer with large area multi-detector coverage. (C) 2013 AIP Publishing LLC. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Review of Scientific Instruments
volume
84
issue
9
article number
093901
publisher
American Institute of Physics (AIP)
external identifiers
  • wos:000325402000027
  • scopus:84885093859
  • pmid:24089835
ISSN
1089-7623
DOI
10.1063/1.4819739
language
English
LU publication?
yes
id
3c9f0b87-3c2e-40f7-a5f0-33292bd14984 (old id 4170505)
date added to LUP
2016-04-01 13:08:25
date last changed
2020-01-02 06:43:44
@article{3c9f0b87-3c2e-40f7-a5f0-33292bd14984,
  abstract     = {The technique of longitudinal ("xyz") polarization analysis has been used successfully for many years to study disordered magnetic materials in thermal and cold neutron diffraction experiments. The technique allows the simultaneous and unambiguous separation of the nuclear, magnetic, and nuclear spin-incoherent contributions to the scattering. The technical advances seen in recent years, such as the availability of polarized He-3 analyzer cells to cover a large detector solid angle, the ability to detect out-of-plane scattering in a multi-detector, and a significant increase of the usable beam divergence, call for a generalization of the method. A general treatment of the formalism for carrying out neutron polarization analysis will be given in this paper, which describes a possible method of usage at a future, modern diffractometer or inelastic spectrometer with large area multi-detector coverage. (C) 2013 AIP Publishing LLC.},
  author       = {Ehlers, G. and Stewart, J. R. and Wildes, A. R. and Deen, Pascale and Andersen, Ken},
  issn         = {1089-7623},
  language     = {eng},
  number       = {9},
  publisher    = {American Institute of Physics (AIP)},
  series       = {Review of Scientific Instruments},
  title        = {Generalization of the classical xyz-polarization analysis technique to out-of-plane and inelastic scattering},
  url          = {http://dx.doi.org/10.1063/1.4819739},
  doi          = {10.1063/1.4819739},
  volume       = {84},
  year         = {2013},
}