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Now showing items 1-4 of 4

    • Decoupling of a neutron interferometer from temperature gradients 

      Saggu, Parminder; Mineeva, Taisiya; Arif, Muhammad; Cory, David G.; Haun, Robert; Heacock, Benjamin; Huber, Michael G.; Li, Ke; Nsofini, Joachim; Sarenac, Dusan; Shahi, Chandra B.; Skavysh, Vladimir; Snow, W. Michael; Werner, Samuel A.; Young, Albert R.; Pushin, Dimitry A. (AIP Publishing, 2016-12-16)
      Neutron interferometry enables precision measurements that are typically operated within elaborate, multi-layered facilities which provide substantial shielding from environmental noise. These facilities are necessary to ...
    • Increased interference fringe visibility from the post-fabrication heat treatment of a perfect crystal silicon neutron interferometer 

      Heacock, Benjamin; Arif, Muhammad; Cory, David G.; Gnaeupel-Herold, Thomas; Haun, Robert; Huber, Michael G.; Jamer, Michelle E.; Nsofini, Joachim; Pushin, Dimitry A.; Sarenac, Dusan; Taminiau, Ivan; Young, Albert R. (AIP Publishing, 2018-02-08)
      We find that annealing a previously chemically etched interferometer at 800 degrees C dramatically increased the interference fringe visibility from 23% to 90%. The Bragg plane misalignments were also measured before and ...
    • Neutron interferometer crystallographic imperfections and gravitationally induced quantum interference measurements 

      Heacock, Benjamin; Arif, Muhammad; Haun, Robert; Huber, Michael G.; Pushin, Dimitry A.; Young, Albert R. (American Physical Society, 2017-01-25)
      Dynamical diffraction leads to an interesting, unavoidable set of interference effects for neutron interferometers. This experiment studies the interference signal from two and three successive Bragg diffractions in the ...
    • Neutron limit on the strongly-coupled chameleon field 

      Li, Ke; Arif, Muhammad; Cory, David G.; Haun, Robert; Heacock, Benjamin; Huber, Michael G.; Nsofini, Joachim; Pushin, Dimitry A.; Saggu, Parminder; Sarenac, Dusan; Shahi, Chandra B.; Skavysh, Vladimir; Snow, W. Michael; Young, Albert R. (American Physical Society, 2016-03-11)
      The physical origin of the dark energy that causes the accelerated expansion rate of the Universe is one of the major open questions of cosmology. One set of theories postulates the existence of a self-interacting scalar ...

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