A scintillation detector of protons and neutrons, products of a dd reaction

A detector of 3.02-MeV protons and 2.45-MeV neutrons is designed for experiments with the injection of deuterium atomic beams in a Gas-Dynamic Trap facility. An organic scintillator and a phototube with a fine-mesh dynode system are used in the sensor. The detector is operated in the mode of single-particle counting; the time resolution is similar to 20 ns. Discrimination between different particles is effected by using a controlled damper that shuts off the proton flow and also by analyzing pulse-height spectra. The sensor is inserted in a vacuum chamber; the rotating mechanism of the sensor and location of the ports in the facility enables measurements along the plasma column.