High Efficiency Detectors for Time-of-Flight with High Energy Neutrons

We discuss our experience in achieving sub-nanosecond time resolution with neutrons about 100 MeV on a scintillation detector 15 × 15 × 100 cm viewed by a single phototube. Time compensation is accomplished by tilting the scintillator axis with respect to the neutron flight path as discussed in a previous paper. We also discuss the interplay between the time compensation from the geometry of light collection and the electronic technique for picking off the time signal.