FUNSPIN polarized cold-neutron beam at PSI

Properties of the cold-neutron beam at the FUNSPIN facility of the SINQ neutron source of the Paul Scherrer Institute, Villigen, Switzerland were investigated. The measured flux density Phi = (2.46 +/- 0.04) x 10(8) [cm(2) s mA](-1), the wavelength averaged mean polarization around the beam axis P-A = (95.29 +/- 0.04)% and the mean polarization over the full beam cross-section P = [89.75 +/- 0.01 (stat) +/- 1.0 (syst)]% are the main attributes of this powerful facility for fundamental particle physics experiments with slow neutrons. (c) 2004 Elsevier B.V. All rights reserved.