Simulation Calculation on Nuclear-Optical Converters for Neutron Detection

Nucear-optical converters(NOC) are fission chambers based upon fission fragement energy conversion to optical radiation in gas luminescent media.NOCs offer a number of potential advantages over ionization detectors.The detectors require no power supply.Signals are transmitted via light-pipe or fiber optics rather than insulated electrical cable.The detectors are less sensitive to gamma radiation.NOC can produce large signals,obviating the need for pre-amplifiers near the detector.According to the characteristics of NOC,under the different conditions,like as the thickness of U target,type of inert gases,material of container,fission fragments and light intensities was simulated by Geant4;We obtained the optimal parameter to design the NOCs,and calculated the energy response of neutron.

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