WCadmium zinc telluride
WSodium iodide
WZinc sulfide
WAnthracene
WCloud chamber
WGaseous ionization detector
WGeiger counter
WGeiger–Müller tube
WKearny fallout meter
WLucas cell
WMedipix
WNeutron detection
WPhotomultiplier tube
WPILATUS (detector)
WProportional counter
WQuartz fiber dosimeter
WSafecast
WScintillation counter
WScintillator
WSpinthariscope
WSurvey meter
WThermoluminescent dosimeter
WWell counter
WX-ray detector