This investigation shows some optical and scintillation properties of new s
cintillating media, based on heavy composite materials and an inorganic cry
stal CsI : Br, intended for the creation of precise heterogeneous EM-calori
meters with the energy resolution sigma /E similar or equal to 4-5%/rootE.
The possibility to use cheap heavy scintillating plates based on optical ce
ramics as active media in heterogeneous EM-calorimeters is considered. (C)
2001 Elsevier Science B.V. All rights reserved.