FAST HEAVY SCINTILLATORS ON THE BASIS OF TUNGSTATE SINGLE-CRYSTALS

New very promising heavy fast PbWO4 crystals as radiators for dense hi gh resolution photon calorimeters were studied in this paper. Radiatio n detector parameters obtained with the real-size calorimeter cells ar e presented. It was shown that owing to high density and transparency, quick response (similar to 4 ns), high radiation stability (about 10 mrad) with energy resolution similar to 1% at an energy above 1 GeV, t he PbWO4-based scintillators are a most advantageous candidate for the creation of total absorption compact detectors of EM calorimeters.