Active cladding scintillating-fiber radiation detector

Abstract From the Canadian patent

A scintillating optical fiber sensitive to low energy radiation has a clear solid, elongated, core with a thin cladding layer surrounding substantially all of the core along substantially all the length of the core and a dye dopant dispersed within the thin cladding layer. When a low energy radiation particle contacts the thin cladding layer energy from the particle is transferred to photons having a radiant energy frequency determined by the dye dopant color and a fraction, of the photons are transmitted through the fiber by total internal reflection. A detector using the scintillating optical fiber is also disclosed having sensor means for detecting and indicating the presence of photons …