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Multiplexing Cold Neutron Spectrometer with Double-Column Rowland Focusing Analyzers

A multiplexing cold-neutron spectrometer design that replaces the single analyzer channel of a triple-axis spectrometer with 34 angular analyzing channels, using double-column Rowland focusing analyzers that fill the crystal gaps of standard Rowland geometry to widen beam coverage and intensity without significant double-scattering, raising inelastic-scattering measurement efficiency by two orders of magnitude.

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Design and construction of the multiplexing cold neutron spectrometer BOYA with double-column

BOYA is a multiplexing cold-neutron spectrometer built at the China Advanced Research Reactor for inelastic neutron scattering. Rather than the single analyzer-detector of a triple-axis spectrometer,…