Abstract
Design considerations of the intense positron facility being setup at Research reactor at Bhabha Atomic Research Center is presented here. A thin sheet of cadmium will convert the intense thermal neutron flux present near reactor core to a high energy gamma ray flux. These gamma rays will cause electron positron pair production in tungsten mesh assembly which are placed close by. These convertor tungsten mesh assembly are designed to have high surface area and they will act as moderators too thus emitting the slow positrons. GEANT and FLUKA Monte Carlo codes are used to optimize the design parameters of the cadmium sheet and the tungsten mesh assembly. A final intensity close to 2×109 e+/sec is predicted for this facility
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