Three Phase-Grating Moiré Neutron Interferometer for Large Interferometer Area Applications

D. Sarenac, D. A. Pushin, M. G. Huber, D. S. Hussey, H. Miao, M. Arif, D. G. Cory, Alexander D Cronin, B. Heacock, D. L. Jacobson, J. M. LaManna, H. Wen

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Abstract

We demonstrate a three phase-grating moiré 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 moiré 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.

Original languageEnglish (US)
Article number113201
JournalPhysical Review Letters
Volume120
Issue number11
DOIs
StatePublished - Mar 12 2018

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Sarenac, D., Pushin, D. A., Huber, M. G., Hussey, D. S., Miao, H., Arif, M., Cory, D. G., Cronin, A. D., Heacock, B., Jacobson, D. L., LaManna, J. M., & Wen, H. (2018). Three Phase-Grating Moiré Neutron Interferometer for Large Interferometer Area Applications. Physical Review Letters, 120(11), [113201]. https://doi.org/10.1103/PhysRevLett.120.113201