Transistor Counting Systems for Scintillation Detectors

The requirements for multiple-coincidence counting systems with 10-8 to 10-9. sec time resolution can be met economically with presently available high-frequency transistors. The design of solid-state coincidence circuits, amplitude discriminators, and decade scalers is considered and their operation discussed. Several systems have been designed utilizing up to 180 channels from scintillation detectors.