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Three Phase-Grating Moire Neutron Interferometer for Large InterferometerArea Applications



Michael G. Huber, D. Sarenac, D. A. Pushin, Houxun Miao, Daniel S. Hussey, D G. Cory, Muhammad D. Arif, David L. Jacobson, Jacob LaManna, Ben Heacock


We demonstrate a three phase-grating neutron interferometer as a robust candidate for large area interferometry applications and characterization of materials. This novel far- eld moire technique allows for broad wavelength acceptance and relaxed requirements related to fabrication and alignment, circumventing the main obstacles associated with perfect crystal neutron interferometry. Interference fringes were observed with a total interferometer length of four meters, and the e ects of an aluminum 6061 alloy sample on the coherence of the system was examined. Experiments to measure the autocorrelation length of samples and the universal gravitational constant are proposed and discussed.
Physical Review Letters


neutron interferometry, Gravity, phase gratings


Huber, M. , Sarenac, D. , , D. , Miao, H. , , D. , Cory, D. , Arif, M. , Duewer, D. , LaManna, J. and Heacock, B. (2021), Three Phase-Grating Moire Neutron Interferometer for Large InterferometerArea Applications, Physical Review Letters, [online], (Accessed May 19, 2024)


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Created April 21, 2021, Updated May 3, 2021