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D A. Pushin, D G. Cory, Muhammad D. Arif, David L. Jacobson, M Huber
Abstract
Here we introduce a Fourier based method for phase contrast neutron imag-ing, report its experimental implementation, show results for a 1-D test phan-tom, and outline the reconstruction methodology. This new approach makes useof neutron interferometry to achieve both phase contrast and to spatially codethe phase of the neutron with a linear phase grating. The spatial informationis recovered from the coherent interference of this phase grating and a spatialphase distribution due to the sample. By moving neutron imaging from real toreciprocal space (in analogy to Fourier magnetic resonance imaging [1]) we avoidthe need for position sensitive detectors and improve the potential image reso-lution. The ultimate resolution will depend solely on the beam characteristics:intensity, momentum spread, and divergence.
Citation
Nature Physics
Pub Type
Journals
Keywords
Fourier spectroscopy, magnetic resonance imaging, neutron imaging
Citation
Pushin, D.
, Cory, D.
, Arif, M.
, Jacobson, D.
and Huber, M.
(2021),
Reciprocal Space Neutron Imaging, Nature Physics
(Accessed June 1, 2023)