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| Home > Publications database > The new high-resolution J-NSE “PHOENIX” at MLZ |
| Home > Publications database > The new high-resolution J-NSE “PHOENIX” at MLZ |
| Conference Presentation (After Call) | FZJ-2020-01624 |
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2019
Abstract: Neutron spin echo (NSE) spectroscopy provides the ultimate energy resolution in quasi-elas- tic thermal and cold neutron scattering spectroscopy. In 2017 the Jülich neutron spin echoat MLZ went through a refurbishment of the secondary spectrometer: The old normal con- ducting main-precession coils have been replaced by a new set of fringe-field compensated, superconducting magnets that were realized following the results obtained for the designof ESSENSE, the proposed high-resolution NSE spectrometer at the ESS. One of the most innovative characteristics of the coils is their optimized geometry that maximizes the intrinsic field-integral homogeneity along the flight-path of the neutrons and that enhances the reso- lution of a factor 2.5, as the first experiments could already confirm. The new configuration yields an improved resolution that may be exploited to reach larger Fourier-times and/or to benefit from significant intensity gains if shorter neutron wavelengths are used at a given Fou- rier-time. Thus the new J-NSE Phoenix meets the needs to look into the microscopic dynam- ics of soft- or –biological matter with enhanced and new quality. Here we present the results on the performance of the spectrometer after the refurbishment and some selected examples from the realm of soft matter dynamics that largely rely on the enhanced properties of the new J-NSE.
Keyword(s): Instrument and Method Development (1st) ; Instrument and Method Development (2nd)
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