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The performance of two hyperthermia applicators in heating deep seated brain tumors is investigated in terms of hyperthermia quality indicators. The antenna elements in both applicators are arranged in a helmet-shape format on a spherical phantom of head. Self grounded bow-tie antennas immersed in conical water containers, are employed as the antenna elements. The first applicator consists of 26 antenna...
A method for constrained focusing or shaping of the Specific Absorption Rate deposition is proposed and discussed. The approach contemporarily takes advantage from multifre-quency applicators, which allow a better control of possible hot-spots, as well as from the proposed formulation, which allows to reduce the problem to a single or a series of Convex programming problems. The approach is presented...
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