中心軸のずれた面線源に対する幾何学的効率の検討

概要

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Geomotrical efficiencies for a disk source with axial asymmetry to a detector which has a circular entrance window are calculated by Monte Carlo Method. Calculations are performed for several source-detector arrangements expressed by the source radius, the detector radius, the axial shift and the distance from source to detector. And the asymmetrical effect is estimated by the comparison of geometrical efficiencies for the following cases. The case for which source radius is larger than detector radius, the asymmetrical effect is relatively small for the opposite case. When axial shift is larger than detector radius, source-detector arrangement changes considerably with its geometrical efficiency, except for the case of extremely large source. The result shows that the asymmetrical effect is related to the fraction of perpendicularly emitted particles and the distance from source to detector.
東海大学の論文