| abstract |
A polycrystalline ceramic scintillator body includes a ceramic scintillating material comprising an oxide of gadolinium (Gd) and a second rare earth element (Re). The ceramic scintillating material has a composition, expressed in terms of molar percentage of oxide constituents, that includes greater than fifty-five percent (55%) Gd 2 O 3 and a minority percentage Of Re 2 O 3 . The ceramic scintillating material includes an activator. |