Huber, M.
, Arif, M.
, , T.
, Jamer, M.
, Heacock, B.
, Cory, D.
, Haun, R.
, Nsofini, J.
, Pushin, D.
, Taminiau, I.
and Young, A.
(2018),
Increased interference fringe visibility from the post fabrication heat treatment of a perfect crystal silicon neutron interferometer, Review of Scientific Instruments, [online], https://doi.org/10.1063/1.5008273, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=924839
(Accessed December 11, 2024)
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Increased interference fringe visibility from the post fabrication heat treatment of a perfect crystal silicon neutron interferometer
Published
Author(s)
, , , , Ben Heacock, David G. Cory, R. Haun, Joachim Nsofini, Dimitry A. Pushin, Ivar Taminiau, A.R. Young
Abstract
We find that annealing a previously chemically etched interferometer at 800 °C dramatically increased the interference fringe visibility from 23 % to 90 %. The Bragg plane misalignments were also measured before and after annealing using neutron rocking curves, showing that Bragg plane alignment was improved across the interferometer after annealing. This suggests that current interferometers with low fringe visibility may be salvageable and that annealing may become an important step in the fabrication process of future neutron interferometers, leading to less need for chemical etching and larger more exotic neutron interferometers.Citation
Review of Scientific Instruments
Volume
89
Pub Type
Journals
Download Paper
Keywords
neutron interferometry
Citation
Issues
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Created February 8, 2018, Updated May 3, 2021