Survey of detection systems and electronics for I.L.L. experiments

Various systems of counting and sensing which have been developed are described. The first generation of these instruments consists of conventional detectors filled with 3He at high pressure. Different types of BF3 Position Sensitive Detectors (PSDs) have been developed. For powder studies we have a 400-cell curved detector (Banana) with 5 mm resolution in one dimension, angular aperture 80 and radius of curvature 1.5 m. For small angle scattering we use an area detector with 4000 and 160000 cells, position sensing in two dimensions with 5 mm of resolution and active detection diameter of 64 cm. The new high pressure 3He PSDs are developed with 2 mm of resolution and the new electronics use the hybrid circuit technique for analogue channel