WPhosphor
WScintillator
WAnthracene
WBarium fluoride
WBarium sulfide
WBismuth germanate
WCadmium sulfide
WCalcium sulfide
WDaly detector
WLead(II) fluoride
WLutetium tantalate
WPhosphorescence
WPolyvinyl toluene
WPOPOP
WPraseodymium(III) nitrate
WScheelite
WSialon
WSodium iodide
W(E)-Stilbene
W(Z)-Stilbene
WStrontium aluminate
WYttrium aluminium garnet
WZinc selenide
WZinc sulfide