Journal
PHYSICAL REVIEW LETTERS
Volume 120, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.120.113201
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Funding
- U.S. Department of Commerce
- NIST Radiation and Physics Division
- Director's Office of NIST
- NIST Center for Neutron Research
- National Institute of Standards and Technology (NIST) Quantum Information Program
- Canadian Excellence Research Chairs (CERC) program
- Canada First Research Excellence Fund (CFREF)
- Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery program, U.S. Department of Energy (DOE)
- Collaborative Research and Training Experience (CREATE) program
- Direct For Mathematical & Physical Scien
- Division Of Physics [1306308] Funding Source: National Science Foundation
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We demonstrate a three phase-grating moire neutron interferometer in a highly intense neutron beam as a robust candidate for large area interferometry applications and for the characterization of materials. This novel far-field moire technique allows for broad wavelength acceptance and relaxed requirements related to fabrication and alignment, thus circumventing the main obstacles associated with perfect crystal neutron interferometry. We observed interference fringes with an interferometer length of 4 m and examined the effects of an aluminum 6061 alloy sample on the coherence of the system. Experiments to measure the autocorrelation length of samples and the universal gravitational constant are proposed and discussed.
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