C particles for NTD-Si irradiationWe have investigated an alternative irradiation method for silicon doping using a thermal neutron filter to increase the irradiation efficiency in the Japan Research Reactor No. 3 (JRR-3). Because of the restrictions caused by engineering design and radioactivity, aluminum mixed BC particles was adopted as a filter material. The burn-up characteristics of a thermal neutron filter containing a zillion BC particles were described. A method for evaluating neutron transmissivity as boron burning in the neutron filter was developed. The applicable scope of the method via experiments using thermal neutron filters was clarified. A method by which we could calculate the suitable diameter and density of BC particles was derived.
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: | 53 |
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: | p.35 - 39 |
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: | 2013/03 |
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