Proton Shield Weight Optimization

抄録

The calculus of variations is used to optimize the proton shield weight consistent with certain proton attenuation requirements, for voids which are bounded by general surfaces and shielded by some or all available materials suitable for proton shields. The thickness of the shielding materials and their order at each point are found in terms of a variable Lagrange multiplier, the relative stopping powers and densities of the eligible shielding materials and the geometry of the void surface at the point. Regions on the surface of the void are delineated wherein all the prescribed shielding materials can be used, while in other regions some of these materials must be dropped in a given order.