The Model 43-92 alpha scintillation detector is designed for alpha contamination surveys. An alpha scintillator, zinc sulfide [ZnS (Ag)], is applied to the window backup, which is covered by metalized Mylar to reduce light response (causing excessive background counts). An 88% open, square-hole screen protects the window. The Model 43-92 is compatible with any LMI general-purpose survey meter, ratemeter or scaler.