Initial results of a microstrip gas detector for 2D neutron reflectometer experiments

The development and testing of a 2d neutron detector for the OffSpec reflectometer on the second target station of the ISIS spallation neutron source is reported. Based on a microstrip gas chamber (MSGC) the detector utilises a wire plane operating at zero gain to provide the second coordinate, which relaxes the tolerances on the wireplane necessary for stable operation.