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Polarized neutron Laue diffraction on a crystal containing dynamically polarized proton spins

Piegsa, F. M. ; Karlsson, M. ; van den Brandt, B. ; Carlile, Colin LU ; Forgan, E. M. ; Hautle, P. ; Konter, J. A. ; McIntyre, G. J. and Zimmer, O. (2013) In Journal of Applied Crystallography 46(1). p.30-34
Abstract
A polarized neutron Laue diffraction experiment on a single crystal of neodymium-doped lanthanum magnesium nitrate hydrate containing polarized proton spins is reported. By using dynamic nuclear polarization to polarize the proton spins, it is demonstrated that the intensities of the Bragg peaks can be enhanced or diminished significantly, whilst the incoherent background, due to proton spin disorder, is reduced. It follows that the method offers unique possibilities to tune continuously the contrast of the Bragg reflections and thereby represents a new tool for increasing substantially the signal-to-noise ratio in neutron diffraction patterns of hydrogenous matter.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Applied Crystallography
volume
46
issue
1
pages
30 - 34
publisher
International Union of Crystallography
external identifiers
  • wos:000313658700004
  • scopus:84872692219
ISSN
1600-5767
DOI
10.1107/S0021889812048376
language
English
LU publication?
yes
id
af8351cf-a5c2-46f7-8b80-d397ca6b9a22 (old id 3470471)
date added to LUP
2016-04-01 10:01:34
date last changed
2020-01-29 01:18:14
@article{af8351cf-a5c2-46f7-8b80-d397ca6b9a22,
  abstract     = {A polarized neutron Laue diffraction experiment on a single crystal of neodymium-doped lanthanum magnesium nitrate hydrate containing polarized proton spins is reported. By using dynamic nuclear polarization to polarize the proton spins, it is demonstrated that the intensities of the Bragg peaks can be enhanced or diminished significantly, whilst the incoherent background, due to proton spin disorder, is reduced. It follows that the method offers unique possibilities to tune continuously the contrast of the Bragg reflections and thereby represents a new tool for increasing substantially the signal-to-noise ratio in neutron diffraction patterns of hydrogenous matter.},
  author       = {Piegsa, F. M. and Karlsson, M. and van den Brandt, B. and Carlile, Colin and Forgan, E. M. and Hautle, P. and Konter, J. A. and McIntyre, G. J. and Zimmer, O.},
  issn         = {1600-5767},
  language     = {eng},
  number       = {1},
  pages        = {30--34},
  publisher    = {International Union of Crystallography},
  series       = {Journal of Applied Crystallography},
  title        = {Polarized neutron Laue diffraction on a crystal containing dynamically polarized proton spins},
  url          = {http://dx.doi.org/10.1107/S0021889812048376},
  doi          = {10.1107/S0021889812048376},
  volume       = {46},
  year         = {2013},
}