Fabrication and characterization of ZnS:Ag-based ultrafiltration membrane scintillator

Abstract This contribution describes the fabrication of an ultrafiltration membrane scintillator based on ZnS:Ag. A solid state reaction method was used for the synthesis of ZnS:Ag, with particular emphasis on investigating the effects of the reaction temperature on the ZnS host, and of the Ag concentration on the radioluminescence (RL) output. The reaction temperature was found to control the crystallite size between 3 and 10 nm for temperatures between 75 and 500 °C, while the RL output was maximized for an Ag concentration of 0.2 mol%. Modified membranes were coated with ZnS:Ag powders via ultrafiltration and their response to ionizing radiation was characterized by means of RL measurements.