ON THE PERFORMANCE OF HELIUM SCINTILLATION COUNTERS.

Abstract A systematic study of the mechanism of helium scintillation counters is reported. The decay time and light yield in scintillations produced by α particles in pure helium or helium containing other gases, at low concentrations, has been measured. Some mixtures, as (HeCO 2 ) and (HeN 2 NO) can have practical interest. The factors determining the energy resolution are discussed.