Speaker
Description
REFSANS is the horizontal TOF reflectometer installed at the MLZ, designed for reflectometry and GISANS studies of any interface, as well as to give simultaneous access to a wide range of Qz values.
Wavelength resolution may be tuned from 1.0 % up to 10%. The optics comprises neutron guide elements with different channels and special apertures to provide slit smeared or point focused beams for NR and GISANS measurements, respectively.
The investigation of kinetic processes is possible thanks to the possibility to embrace a large Qz-range with a single instrumental setting. Time resolution can be pushed down to 30 s with data recorded in event-mode: this feature makes possible to perform various time re-binnings in order to tune the resolution/ intensity trade-off after the experiment.
Here we describe the current upgrade plan of the instrument as well as the future changes we intend to implement, which aim to increase its performance and the neutron flux at the sample position, with gain factors ranged between ~ 2 and ~ 8, depending on the optical setup. Furthermore, the instrument performance in the absence of the cold source, as well as potential related applications, are discussed.