title: High angular resolution neutron interferometry.
abstract: The currently largest perfect-crystal neutron interferometer with six beam splitters and two interference loops offers novel applications in neutron interferometry. The two additional lamellas can be used for quantitative measurements of a phase shift due to crystal diffraction in the vicinity of a Bragg condition. The arising phase, referred to as "Laue phase," reveals an extreme angular sensitivity, which allows the detection of beam deflections of the order of 10(-6) s of arc. Furthermore, a precise measurement of the Laue phase at different reflections might constitute an interesting opportunity for the extraction of fundamental quantities like the neutron-electron scattering length, gravitational short-range interactions in the sub-micron range and the Debye Waller factor. For that purpose several harmonics can be utilized at the interferometer instrument ILL-S18.
authors: Vienna University of Technology, Institute of Atomic and Subatomic Physics, Stadionallee 2, 1020 Vienna, Austria.
authors: M
authors: M
authors: Zawisky
authors: J
authors: J
authors: Springer
authors: H
authors: H
authors: Lemmel