A design for a high resolution very-low-Q time-of flight diffractometer.

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The design of a high resolution view low-Q time of flight diffractometer was motivated by the anticipated need to perform small-angle neutron scattering measurements at far lower momentum transfer and higher precision than currently available at either pulsed or steady state sources. In addition, it was recognized that flexibility in the configuration of the instrument and ease in which data is acquired are important. The design offers two configurations, a high intensity/very low Q geometry employing a focusing mirror and a medium to high Q-precision/low Q configuration using standard pinhole collimation geometry. The quality of the mirror optics is very ... continued below

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17 p.

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Hjelm, R. P. September 29, 1998.

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Description

The design of a high resolution view low-Q time of flight diffractometer was motivated by the anticipated need to perform small-angle neutron scattering measurements at far lower momentum transfer and higher precision than currently available at either pulsed or steady state sources. In addition, it was recognized that flexibility in the configuration of the instrument and ease in which data is acquired are important. The design offers two configurations, a high intensity/very low Q geometry employing a focusing mirror and a medium to high Q-precision/low Q configuration using standard pinhole collimation geometry. The quality of the mirror optics is very important to the performance of the high intensity/very low Q configuration. We believe that the necessary technology exists to fabricate the high quality mirror optics required for the instrument.

Physical Description

17 p.

Notes

INIS; OSTI as DE00010982

Medium: P; Size: 17 pages

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  • 14th Meeting of the International Collaboration on Advanced Neutron Sources (ICANS XIV), Argonne, IL (US), 06/14/1998--06/19/1998

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  • Report No.: ANL/IPNS/CP-97349
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10982
  • Archival Resource Key: ark:/67531/metadc625305

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  • September 29, 1998

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 7, 2017, 3:33 p.m.

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Hjelm, R. P. A design for a high resolution very-low-Q time-of flight diffractometer., article, September 29, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc625305/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.