TY  - JOUR
AU  - Beddrich, Lukas
AU  - Jochum, Johanna K.
AU  - Bender, Philipp
AU  - Spitz, Leonie
AU  - Wendl, Andreas
AU  - Franz, Christian
AU  - Busch, Sebastian
AU  - Juranyi, Fanni
AU  - Pfleiderer, Christian
AU  - Soltwedel, Olaf
TI  - Comparison of time-of-flight and MIEZE neutron spectroscopy of H2O
JO  - Journal of applied crystallography
VL  - 58
IS  - 4
SN  - 0021-8898
CY  - Copenhagen
PB  - Munksgaard
M1  - FZJ-2025-03020
SP  - 1
PY  - 2025
AB  - We report a comparison of modulation of intensity with zero effort (MIEZE), a neutron spin–echo technique, and neutron time-of-flight (ToF) spectroscopy, a conventional neutron scattering method. The evaluation of the respective recorded signals, which can be described by the intermediate scattering function I(Q, τ) (MIEZE) and the dynamic structure factor S(Q, E) (ToF), involves a Fourier transformation that requires detailed knowledge of the detector efficiency, instrumental resolution, signal background and range of validity of the spin–echo approximation. It is demonstrated that data obtained from pure water align well within the framework presented here, thereby extending the applicability of the MIEZE technique beyond the spin–echo approximation and emphasizing the complementarity of the two methods. Computational methods, such as molecular dynamics simulations, are highlighted as essential for enhancing the understanding of complex systems. Together, MIEZE and ToF provide a powerful framework for investigating dynamic processes across different time and energy domains, with particular attention required to ensure identical sample geometries for meaningful comparisons.
LB  - PUB:(DE-HGF)16
C6  - 40765959
UR  - <Go to ISI:>//WOS:001546346000003
DO  - DOI:10.1107/S1600576725003620
UR  - https://juser.fz-juelich.de/record/1044097
ER  -