The observation of neutron interference using a triple Laue interferometer formed by two separate crystals opens the way to the construction and operation of skew-symmetric interferometers with extended arm separation and length. The specifications necessary for their successful operation are investigated here: most importantly, how the manufacturing tolerance and crystal alignments impact the interference visibility. In contrast with previous studies, both incoherent sources and the three-dimensional operation of the interferometer are considered. It is found that, with a Gaussian Schell model of an incoherent source, the integrated density of the particles leaving the interferometer is the same as that yielded by a coherent Gaussian source having a radius equal to the coherence length.

Operation model of a skew-symmetric split-crystal neutron interferometer / Sasso, Carlo P.; Mana, Giovanni; Massa, Enrico. - In: JOURNAL OF APPLIED CRYSTALLOGRAPHY. - ISSN 1600-5767. - 57:1(2024), pp. 44-59. [10.1107/s1600576723010245]

Operation model of a skew-symmetric split-crystal neutron interferometer

Sasso, Carlo P.
;
Mana, Giovanni;Massa, Enrico
2024

Abstract

The observation of neutron interference using a triple Laue interferometer formed by two separate crystals opens the way to the construction and operation of skew-symmetric interferometers with extended arm separation and length. The specifications necessary for their successful operation are investigated here: most importantly, how the manufacturing tolerance and crystal alignments impact the interference visibility. In contrast with previous studies, both incoherent sources and the three-dimensional operation of the interferometer are considered. It is found that, with a Gaussian Schell model of an incoherent source, the integrated density of the particles leaving the interferometer is the same as that yielded by a coherent Gaussian source having a radius equal to the coherence length.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/79859
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