SPHERES, J\"ulich's High-Flux Neutron Backscattering Spectrometer at FRM II
Joachim Wuttke, Alfred Budwig, Matthias Drochner, Hans K\"ammerling,, Franz-Joseph Kayser, Harald Kleines, Vladimir Ossovyi, Luis Carlos Pardo,, Michael Prager, Dieter Richter, Gerald J. Schneider, Harald Schneider, Simon, Staringer
TL;DR
SPHERES is a state-of-the-art neutron backscattering spectrometer at FRM II, providing ultra-high energy resolution and a broad dynamic range for advanced neutron scattering experiments.
Contribution
This paper introduces SPHERES, a third-generation spectrometer with unprecedented energy resolution and signal-to-noise ratio at the FRM II neutron source.
Findings
Energy resolution better than 0.65 micro-eV
Dynamic range of +-31 micro-eV
Signal-to-noise ratio up to 1750:1
Abstract
SPHERES (SPectrometer with High Energy RESolution) is a third-generation neutron backscattering spectrometer, located at the 20 MW German neutron source FRM II and operated by the Juelich Centre for Neutron Science. It offers an energy resolution (fwhm) better than 0.65 micro-eV, a dynamic range of +-31 micro-eV, and a signal-to-noise ratio of up to 1750:1.
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