PIND: High spatial resolution by pinhole neutron diffraction

Wu, Wei; Stoica, Alexandru Dan; Berry, Kevin D.; Frost, Matthew J.; Skorpenske, Harley David; An, Ke

doi:10.1063/1.5026066

Title: PIND: High spatial resolution by pinhole neutron diffraction

Journal Article · Mon Jun 18 00:00:00 EDT 2018 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.5026066· OSTI ID:1479785

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^[1]; Berry, Kevin D. ^[1];

^[1]; Skorpenske, Harley David ^[1];

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Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Here, a pinhole neutron diffraction (PIND) technique was developed to enable improving the spatial resolution down to 250 μm. Instead of the conventional engineering diffraction method which integrates all the diffraction signals on the detector plane, the PIND setup utilizes the diffraction pattern of each pixel on 2D detectors. The proposed PIND arrangement enables improving the spatial resolution of time-of-flight instruments and allows solving problems involving steep gradients of strain or texture. The phase content and preferential orientation of grains inside samples can be spatially resolved in 2D/3D. Further, PIND retains the capability of in-situ non-destructive neutron diffraction mapping of lattice strain and grain orientation under external stimuli such as temperature and force.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725; LDRD-6789

OSTI ID:: 1479785

Alternate ID(s):: OSTI ID: 1454666

Journal Information:: Applied Physics Letters, Vol. 112, Issue 25; ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 8 works

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Cited By (3)

A suite-level review of the neutron powder diffraction instruments at Oak Ridge National Laboratory Calder, S.; An, K.; Boehler, R. Review of Scientific Instruments, Vol. 89, Issue 9 https://doi.org/10.1063/1.5033906	journal	September 2018
Time-of-Flight Neutron Diffraction (TOF-ND) Analyses of the Composition and Minting of Ancient Judaean “Biblical” Coins Nagler, Stephen E.; Stoica, Alexandru D.; Stoica, Grigoreta M. Journal of Analytical Methods in Chemistry, Vol. 2019 https://doi.org/10.1155/2019/6164058	journal	March 2019
Bending Behavior of a Wrought Magnesium Alloy Investigated by the In Situ Pinhole Neutron Diffraction Method Wu, Wei; Stoica, Alexandru; Yu, Dunji Crystals, Vol. 8, Issue 9 https://doi.org/10.3390/cryst8090348	journal	August 2018

Figures / Tables (3)

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