Calculation of thermal diffuse scattering

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Description

The authors developed a computer program to calculate the thermal diffuse scattering (TDS) intensity distribution for single crystal specimens in a diffractometer with no energy analysis. They assumed that the phonon frequencies are approximated by those of elastic waves and that the elastic constants, density and lattice parameters of the system under study are known. The results of the calculations were compared to experimental data obtained for single crystals of Si, diamond and NiAl at the Wide Angle neutron Diffractometer at the HFIR at Oak Ridge National Laboratory. Excellent agreement was found between the calculations and the experimental observations.

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8 p.

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Wakabayashi, N.; Nicklow, R.M.; Child, H.R.; Smith, H.G.; Fernandez-Baca, J.A.; Katano, S. et al. July 14, 1997.

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Description

The authors developed a computer program to calculate the thermal diffuse scattering (TDS) intensity distribution for single crystal specimens in a diffractometer with no energy analysis. They assumed that the phonon frequencies are approximated by those of elastic waves and that the elastic constants, density and lattice parameters of the system under study are known. The results of the calculations were compared to experimental data obtained for single crystals of Si, diamond and NiAl at the Wide Angle neutron Diffractometer at the HFIR at Oak Ridge National Laboratory. Excellent agreement was found between the calculations and the experimental observations.

Physical Description

8 p.

Notes

INIS; OSTI as DE97008453

Source

  • International conference on neutron scattering (ICNS), Toronto (Canada), 17-21 Aug 1997

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  • Other: DE97008453
  • Report No.: CONF-970814--2
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/527515 | External Link
  • Office of Scientific & Technical Information Report Number: 527515
  • Archival Resource Key: ark:/67531/metadc693956

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Creation Date

  • July 14, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Aug. 4, 2016, 6:55 p.m.

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Wakabayashi, N.; Nicklow, R.M.; Child, H.R.; Smith, H.G.; Fernandez-Baca, J.A.; Katano, S. et al. Calculation of thermal diffuse scattering, report, July 14, 1997; Tennessee. (digital.library.unt.edu/ark:/67531/metadc693956/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.