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Nested Neutron Microfocusing Optics on SNAP

Journal Article · · Applied Physics A - Materials Science & Processing
 [1]; ;  [2];  [3];  [1];  [1];  [1];  [4];  [4]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Pohang Accelerator Laboratory, Pohang (Korea)
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  4. Institut Laue-Langevin, Grenoble (France)
+ Show Author Affiliations
The high source intensity of the Spallation Neutron Source (SNS), together with efficient detectors and large detector solid angles, now makes possible neutron experiments with much smaller sample volumes than previously were practical. Nested Kirkpatrick–Baez supermirror optics provide a promising and efficient way to further decrease the useable neutron sample size by focusing polychromatic neutrons into microbeams. Because the optics are nondispersive, they are ideal for spallation sources and for polychromatic and wide bandpass experiments on reactor sources. Theoretical calculations indicate that nested mirrors can preserve source brilliance at the sample for small beams and for modest divergences that are appropriate for diffraction experiments. Although the flux intercepted by a sample can be similar with standard beam-guided approaches, the signal-to-background is much improved with small beams on small samples. Here we describe the design, calibration and performance of a nested neutron mirror pair for the Spallation Neutrons At Pressure (SNAP) beamline at the SNS. High-pressure neutron diffraction is but one example of a large class of neutron experiments that will benefit from spatially-resolved microdiffraction.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC02-98CH10886
OSTI ID:
988782
Report Number(s):
BNL--93837-2010-JA; KA-11
Journal Information:
Applied Physics A - Materials Science & Processing, Journal Name: Applied Physics A - Materials Science & Processing Journal Issue: 3 Vol. 99; ISSN 0947-8396; ISSN 1432-0630
Publisher:
Springer Nature
Country of Publication:
United States
Language:
English

References (5)

Theory and practice of elliptically bent x-ray mirrors journal October 2000
Long-trace profiler for neutron focusing mirrors
  • Puzyrev, Yevgeniy S.; Ice, Gene E.; Takacs, Peter Z.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 598, Issue 2 https://doi.org/10.1016/j.nima.2008.08.150
journal January 2009
High-performance Kirkpatrick-Baez supermirrors for neutron milli- and micro-beams journal November 2006
The Future of Spatially-Resolved Polychromatic Neutron and X-Ray Microdiffraction journal June 2008
Kirkpatrick–Baez microfocusing optics for thermal neutrons
  • Ice, Gene E.; Hubbard, Camden R.; Larson, Bennett C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 539, Issue 1-2 https://doi.org/10.1016/j.nima.2004.10.005
journal February 2005

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY