Development of compact neutron beam generator for analytical use by the cylindrical discharge fusion device

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A compact neutron beam generator utilizing electric discharge and nuclear fusion reaction, combined with reflectors and moderators, has been studied. Optimization of electrode arrangement were performed by using a simulation code and a discharge device. By the analysis using the MCNP code, combined reflector which consists of two layers of different materials, inserting a moderator, and bending the extraction channel are effective to generate thermal, epithermal, and fast neutron beams.