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

We demonstrate a three phase-grating neutron interferometer as a robust candidate for large area interferometry applications and characterization of materials. This novel far-field moire technique allows for broad wavelength acceptance and relaxed requirements related to fabrication and alignment, c...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2017-08
Main Authors: 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
Format: Article
Language:English
Subjects:
Aluminum base alloys
Gravitational constant
Interference fringes
Interferometry
Measuring instruments
Moire fringes
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We demonstrate a three phase-grating neutron interferometer as a robust candidate for large area interferometry applications and characterization of materials. This novel far-field 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 effects 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.
ISSN:2331-8422
DOI:10.48550/arxiv.1708.05421