High Counting Rate Scintillator

摘要

[PROBLEMS] To provide a scintillator responding to high counting rate sustaining high-speed and high detection efficiency of BaF₂ and to provide a radiation detection device with high time resolution by using the scintillator.;[MEANS FOR SOLVING PROBLEMS] A specified amount of rare earth element (Eu) is doped into BaF₂ to reduce long decay lifetime component (600 to 620 nm), leaving fast decaying component (0.6 to 0.8 ns) of BaF₂ luminescence unchanged. The present invention is a high counting rate scintillator for detecting radiation comprising BaF₂ doped with rare earth elements (Eu), wherein the doping amount is in the range of 0.02 to 1.0 mol %.