- Title
- Measuring single-crystal diffuse neutron scattering on the wombat high-intensity powder diffractometer
- Creator
- Whitfield, R. E.; Goossens, D. J.; Studer, A. J.; Forrester, J. S.
- Relation
- ARC
- Relation
- Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science Vol. 43A, Issue 5, p. 1423-1428
- Publisher Link
- http://dx.doi.org/10.1007/s11661-011-0740-x
- Publisher
- Springer New York
- Resource Type
- journal article
- Date
- 2012
- Description
- Single-crystal diffuse scattering was collected on the Wombat high-intensity powder diffrac-tometer at the OPAL reactor at the Bragg Institute. The difficulty in measuring diffuse scattering comes from its relatively low intensity compared to the Bragg peaks, a factor of 10³ to 10⁴ smaller. Wombat allows collection of diffuse scattering due to its high intensity and large two- dimensional detector. Diffuse scattering data from yttria-stabilized cubic zirconia (YCSZ, Y₂O₃ stabilized ZrO₂ ) and PbZn1/3 Nb 2/3O₃ (PZN) were successfully collected, the latter at a range of temperatures. The data were processed, normalized, and background subtracted to reconstruct flat reciprocal space sections with a minimum of artifacts. The strategies used to tackle the collection of neutron diffuse scattering and the way in which they are implemented will be discussed. The results show that the neutron powder diffractometer with a continuous detector is capable of collecting high-quality diffuse scattering data.
- Subject
- Diffuse; scattering; single-crystal; diffractometer; wombat
- Identifier
- http://hdl.handle.net/1959.13/1306439
- Identifier
- uon:21183
- Identifier
- ISSN:1073-5623
- Language
- eng
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