It has the biggest port in the world, and is a technological, economic and cultural centre. Daniel den Hoed Kliniek is one of the two institutes in the Netherlands specialized in cancer treatment. Besides conventional treatment methods like radiotherapy, chemotherapy, surgery, etc the institute performs large research in new and experimental treatments. One of these is hyperthermia , which I will be working on. C. One important problem is to measure the temperature within and outside the tumour cells to be killed.
Much effort is spent on non-invasive methods, i.e. without operating.
A promising method is APT, applied potential tomography . APT uses the fact that many materials have a resistivity varying with the temperature. By means of an electromagnetical sensor connected to a computing system, measurements are made possible without opening the skin. Unfortunately, the radiation used to heat the tissue, does interfere with the resistivity mesurements. My first task was to make a filter to suppress this interference.