Neutron spin echo (NSE) spectroscopy offers detailed access to microscopic dynamics but is limited by low flux, long acquisition times, and substantial noise. We introduce a Bayesian inference framework based on Gaussian Process Regression (GPR) that reconstructs high-quality spin-echo signals from sparse, noisy, and irregularly sampled measurements by leveraging correlations in reciprocal...
We present the instrument concept for KVASIR, a backscattering indirect time-of-flight neutron spectrometer for the European Spallation Source (ESS). KVASIR will probe low lying excitations in single crystals of hard condensed matter. The instrument follows the FARO/SHERPA concept, using mosaic prismatic PG analyzer crystals. KVASIR is simultaneously optimized for high resolution of energy-...
Within this presentation we want to show new developments on sample environment dedicated for TOFTOF. Although we want to show and discuss our planed upgrade program for TOFTOF.
Neutron polarization analysis provides profound additions of knowledge to the field of soft condensed matter research. The ability to separate the coherent and incoherent scattering contributions gives information on spatial correlations and collective motion, and information from single particles, respectively.
In this study, we focus on upgrading the SPHERES (SPectrometer for High Energy...
The National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR) has been operating a neutron spin echo spectrometer since the later ‘90s. Recently, through a collaboration among the University of Delaware, the University of Maryland and the NCNR with a strong support from the Jülich Center for Neutron Science, the instrument was significantly upgraded using funding...
