The new polarized neutron reflectometer in Julich

A reflectometer with polarization analysis is being built on the basis of t he HADAS spectrometer in the neutron guide hall at the research reactor FRJ -2 (DIDO) in Julich. The new instrument is optimized for reflectivity and d iffuse magnetic scattering measurements with small incident angles on magne tic films with thicknesses in the nm range. The polarization analyser consi sts of a stack of supermirrors parallel to the scattering plane. The instru ment contains a position sensitive detector with 1 mm spatial resolution, i t covers a momentum transfer range 0.003 Angstrom(-1) < q < 2 Angstrom(-1) with a resolution of 0.002 Angstrom(-1). Samples up to 17 mm height can be measured. (C) 2000 Elsevier Science B.V. All rights reserved.