On the resolution of a MIEZE spectrometer
arXiv:1710.03056 · doi:10.1016/j.nima.2017.11.021
Abstract
We study the effect of a finite sample size, beam divergence and detector thickness on the resolution function of a MIEZE spectrometer. We provide a transparent analytical framework which can be used to determine the optimal trade-off between incoming flux and time resolution for a given experimental configuration. The key result of our approach is that the usual limiting factor of MIEZE spectroscopy, namely neutron path length differences throughout the instrument, can be suppressed up to relatively large momentum transfers by using a proper small-angle (SANS) geometry. Under such configuration, the hitherto accepted limits of MIEZE spectroscopy in terms of time-resolution are pushed upwards by typically an order of magnitude, giving access to most of the topical fields in soft- and hard-condensed matter physics.
19 pages, 6 figures
References in corpus (5)
- Energy Gaps and Kohn Anomalies in Elemental Superconductors
- Monte-Carlo Simulations for the optimisation of a TOF-MIEZE Instrument
- Neutron spin echo spectroscopy under 17T magnetic field at RESEDA
- Lifetime of Gapped Excitations in a Collinear Quantum Antiferromagnet
- Dipolar effects on the critical fluctuations in Fe: Investigation by MIEZE
Cited by in corpus (5)
- MIEZE Neutron Spin-Echo Spectroscopy of Strongly Correlated Electron Systems
- The longitudinal neutron resonant spin echo spectrometer RESEDA
- Oscillatory magnetic fields for neutron resonance spin-echo spectroscopy
- Extending MIEZE spectroscopy towards thermal wavelengths
- MIASANS at the longitudinal neutron resonant spin-echo spectrometer RESEDA