Polarizing supermirror

Composition: CoFeV/TiZr with TiZrGd underlayer on glass
Critical angle: 3.3 mrad/Å
Reflectivity at the critical angle: 0.75
Dimensions of coated area: 200x400mm2
Thickness of substrates: ≥0.3 mm

The reflectivities R± for the spin-up (+) and spin-down (-) neutrons and the polarising efficiency P as a function of the momentum transfer q for a polarizing CoFeV/TiZr supermirror with the TiZrGd underlayer on the glass substrate.