The outline technical design of polREF has been developed to optimise the possibilities for PNR on the ISIS second target station in the following key areas:
polREF will have flexible, three-directional polarisation control, allowing access to all elements of the polarisation matrix over a wavelength range from 1–15 Å. Accurate three-dimensional control of applied magnetic fields at the sample position will be achieved with a 0.5 Tesla magnet, and in-situ magneto-optic Kerr microscopy will give complementary information on the magnetic configuration. A 10 Tesla superconducting magnet will be provided for measurements of rare earth magnetism and superconductivity. polREF will have a 23 m primary flight path and view the grooved solid methane moderator.
|Moderator||Coupled grooved cold H2/CH4|
|Incident Wavelength||0.9Å - 15Å|
|Flux at the sample position||~107 n cm-2 s-1|
|Beam size||60 mm x 30mm H x V|
|Performance||×15-23 over ISIS Target Station|
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