A large-area neutron-interferometer optimized for coherent beam deflection: Applications

作者：Springer J; Zawisky M^*; Farthofer R; Lemmel H; Suda M; Kuetgens U

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2010, 615(3): 307-312.

DOI：10.1016/j.nima.2010.01.080

• Neutron interferometry
• Perfect crystal interferometer
• Large-area interferometer
• Two-loop
• Beam deflection
• Higher order reflections
• Short wavelengths
• Prisms
• Vertical coherence
• Homogeneous materials
• Momentum squeezing
• Split crystal interferometer
• Gravitational induced phase

A large perfect crystal interferometer with two interference loops offers novel applications in neutron interferometry. Coherent beam manipulation with special prism and phase shifter arrangements is discussed and prism materials that are able to preserve beam coherence in case of thicker prisms are investigated. A set of four identical prisms has been used to determine the vertical coherence function in an experiment performed at instrument ILL-S18. Several proposals for new experiments are outlined for (a) sq

• 出版日期2010-4-11