A position-sensitive particle detector

The design, construction and performance of a position-sensitive particle detection system for use in experiments involving the scattering or dispersion of atoms or ions is described. The device may have applications in atomic and molecular scattering, mass spectrometry and other similar fields where the arrival in position and time of particles must be monitored. In the present realisation (designed for use in atomic collision experiments) an angular resolution of 0.10, a response time ∼10 ns and a detection efficiency >90% have been achieved. (author)