Gerhard Mönich

TL;DR: A treatment planning program package for radiofrequency hyperthermia has been developed and simulation and optimisation tools have been applied to estimate the improvements that could be reached by upgrades of the clinically used SIGMA-60 applicator.

TL;DR: Three methods exploiting the temperature dependence of spin‐lattice relaxation time, of self‐diffusion coefficient, and of chemical shift of proton resonance frequency were applied in phantom experiments and the results show a clear superiority of the PRF method, followed by the D and the T1 methods.

TL;DR: To achieve the required phase accuracy and long-term stability in the prototype of a new amplifier system, single-sideband (SSB) mixing in combination with direct digital synthesizers (DDS), in-phase and quadrature-phase (IQ) processing and phase-lock loop (PLL) were used.

TL;DR: Experimental and numerical evaluations demonstrate a good stability of impedance matching, a low inter-channel coupling of less than -20 dB, and a good ability of field pattern steering in a novel twelve-channel three-dimensional hyperthermia applicator.

TL;DR: The manufacture of solid components with high permittivities epsilon r of 1-100 and differing conductivities sigma of 0-1.0 S/m has practical significance for fabricating applicators and phantoms in radiofrequency hyperthermia and for identifying manufacturing problems.