Radiation-Induced Imaging System Over Long Fiber-Optic Bundles

Scintillator, fiber, and detector technologies have progressed over the last few years so that it is now possible to record radiation images over optical fiber bundles 1 km in length. Scintillators that emit at 730 nm will be coupled with wavelength-multiplexing techniques to telecommunication fibers for transmission to a demultiplexer and detection by GaAs microchannel-plate image-intensifier tubes. The technique and design considerations, such as time-integrated versus time-resolved images, resolution and system dynamic range will be described.