On the challenge of flux concentration at grazing incidence for neutrons and x-rays

Boris Khaykovich; Dazhi Liu; Giacomo Resta; David E. Moncton; Mikhail V. Gubarev

doi:10.1117/12.929328

11 October 2012 On the challenge of flux concentration at grazing incidence for neutrons and x-rays

Boris Khaykovich, Dazhi Liu, Giacomo Resta, David E. Moncton, Mikhail V. Gubarev

Proceedings Volume 8485, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration IX; 848509 (2012) https://doi.org/10.1117/12.929328
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

Designing optical systems for concentrating the flux of thermal neutrons and x-rays is severely constrained by the requirement of grazing incidence, i.e., the exceedingly small angles for total external reflection at mirror surfaces. As a result, the design principles established for non-imaging (i.e. flux concentrators) optics for visible light must be reconsidered. We present new concepts for improving the attainable flux density from neutron sources. In particular, we show how nested axisymmetric mirror systems including up to three reflections can achieve significantly higher concentrations.

Citation Download Citation

Boris Khaykovich, Dazhi Liu, Giacomo Resta, David E. Moncton, and Mikhail V. Gubarev "On the challenge of flux concentration at grazing incidence for neutrons and x-rays", Proc. SPIE 8485, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration IX, 848509 (11 October 2012); https://doi.org/10.1117/12.929328

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