Many neutron instruments use strong magnetic fields as part of their standard sample environment. Such magnetic fields are currently generated with cryomagnets, which typically produce a strong stray field due to their design. Neutron instrument components such as the sample stage, motors and electronics are often exposed to this magnetic stray field and can be damaged as a result....
Fast neutron background poses a significant limitation to the signal-to-noise ratio in many neutron instruments. At the BOA beamline at the Swiss spallation neutron source SINQ, cold neutrons are reflected out of the direct line of sight from the source using a supermirror bender, while fast neutrons (>1 MeV) propagate through the beamline shielding due to their high penetration capability....
Building neutron optics devices, including neutron guides, necessitates effective shielding of construction materials against neutron radiation (thermal and cold neutrons) to prevent material damage such as embrittlement. Additionally, neutron radiation escaping from these devices is disturbing the neutron science experiment as so-called background.
Common shielding materials in neutron...
At the ILL Multilayer Group, we coat multilayers (including supermirrrors) and produce optical devices like polarisers, wavelength filters and others. Having access to a reliable and performing characterization instrument is compulsory for this activity. The group owns a test instrument named T3, which was stopped in 2021 due to a large upgrade of the guide hall. The instrument moved to a new...
The ISIS INTER beamline is a high-flux neutron reflectometer capable of achieving high resolution and fast measurement speeds. A catalytic reaction study involving ionic liquids (ILs) has been proposed to take advantage of this capability. This area of research requires a challenging bench-top sample environment chamber that is compatible with pressurised flammable gases (up to 145 bar H₂,...
Within the Endurance Phase 1 projects, several new monochromators have been developed, covering the complete process from crystal growth to device integration, with first results already obtained on ILL instruments. Major achievements include large double-focusing HOPG monochromators for the D007 diffuse scattering spectrometer and the SHARPER time-of-flight spectrometer, as well as a new HOPG...
