Scintillating optical fiber dosimetry with photodiode readout

Plastics are a great material to be used as a dosimeter. Their radio-properties are similar to water, so correction factors to convert the measured dose into dose in water are small. Traditionally the light from plastic dosimeters has been measured using PMT’s. An effective alternative is provided by photodiodes, which have broader wavelength sensitivity, allowing for the use of lower wavelength photons.