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Building a high resolution total scattering powder diffractometer – upgrade of NPD at MLNSC

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Abstract.

The neutron powder diffractometer NPD at the Manuel Lujan Neutron Scattering Center (MLNSC) at Los Alamos National Laboratory is the neutron powder diffractometer with the highest resolution in the United States. We are currently upgrading NPD by adding a large number of position-sensitive detectors in the backscattering position. The upgraded instrument will make it possible to collect data from a powder sample over a wide range in Q with high Q resolution at high data rates. This design will optimize the instrument for total scattering measurements, including Bragg as well as diffuse scattering, allowing us to determine the crystallographic average structure as well as the local structure, often responsible for the properties of complex materials.

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Authors and Affiliations

  1. Los Alamos National Laboratory, LANSCE-12, MS H805, Los Alamos, NM 87545, USA, , , , , , US

    T. Proffen

  2. Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA, , , , , , US

    T. Egami

  3. Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824-1116, USA, , , , , , US

    S.J.L. Billinge

  4. Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA, , , , , , US

    A.K. Cheetham

  5. Department of Physics, University of Virginia, Charlottesville, VA 22901, USA, , , , , , US

    D. Louca

  6. Department of Geosciences, State University of New York at Stony Brook, Stony Brook, NY 11790, USA, , , , , , US

    J.B. Parise

Authors
  1. T. Proffen
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  2. T. Egami
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  3. S.J.L. Billinge
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  4. A.K. Cheetham
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  5. D. Louca
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  6. J.B. Parise
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Additional information

Received: 17 July 2001 / Accepted: 31 August 2002

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ID="*"Corresponding author. (Fax: +1-505/665-2676, E-mail: tproffen@lanl.gov)

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Proffen, T., Egami, T., Billinge, S. et al. Building a high resolution total scattering powder diffractometer – upgrade of NPD at MLNSC . Appl Phys A 74 (Suppl 1), s163–s165 (2002). https://doi.org/10.1007/s003390201929

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  • DOI: https://doi.org/10.1007/s003390201929

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