KVASIR: A backscattering neutron spectrometer for hard condensed matter at ESS

Fuente: arXiv
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Main Authors: Davidsen, Amalie F., Krighaar, Kristine M. L., Deen, Pascale P., Lefmann, and Kim
Format: Preprint
Published: 2025
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author Davidsen, Amalie F.
Krighaar, Kristine M. L.
Deen, Pascale P.
Lefmann, and Kim
author_facet Davidsen, Amalie F.
Krighaar, Kristine M. L.
Deen, Pascale P.
Lefmann, and Kim
contents 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 of single crystal hard condensed matter that many advanced technologies rely upon. The instrument is simultaneously optimized for high resolution of energy-and momentum transfer, while ensuring perturbation by high magnetic fields. Detailed ray tracing simulations, considering the true geometry and aberrations of the analyser configuration have been performed. The proposed concept has room for polarisation analysis and extreme sample environments. Inelastic neutron scattering studies of single crystal hard condensed matter, with a particular focus on quantum, at yet unseen spatial and dynamic precision under extreme conditions are hereby enabled.
format Preprint
id arxiv_https___arxiv_org_abs_2510_18415
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle KVASIR: A backscattering neutron spectrometer for hard condensed matter at ESS
Davidsen, Amalie F.
Krighaar, Kristine M. L.
Deen, Pascale P.
Lefmann, and Kim
Strongly Correlated Electrons
Quantum Physics
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 of single crystal hard condensed matter that many advanced technologies rely upon. The instrument is simultaneously optimized for high resolution of energy-and momentum transfer, while ensuring perturbation by high magnetic fields. Detailed ray tracing simulations, considering the true geometry and aberrations of the analyser configuration have been performed. The proposed concept has room for polarisation analysis and extreme sample environments. Inelastic neutron scattering studies of single crystal hard condensed matter, with a particular focus on quantum, at yet unseen spatial and dynamic precision under extreme conditions are hereby enabled.
title KVASIR: A backscattering neutron spectrometer for hard condensed matter at ESS
topic Strongly Correlated Electrons
Quantum Physics
url https://arxiv.org/abs/2510.18415