The design of tumor imitator for microwave radiometry considering physiological properties

Microwave radiometry is the spectral measurement technique of using electromagnetic radiation of all matters for which temperature is above absolute zero. This technique utilized the electromagnetic noise field generated by a thermal volume similar to a mechanism existing in tissues. One particular application is for analyzing temperature of a human body to detect diagnosis of pathologic conditions related with disease. For general evaluation of a radiometer, we proposed a new phantom scheme containing a tumor imitator which simulates heat diffusion propagated by tissues around tumors. Theoretical research of human tumors revealed the fact that temperature distribution of tissues around the tumor formed a Gaussian statistic. To comply with this physiological property, we built a tumor imitator composed of two parts, pseudo-tumor and thermo-anomaly, and observed the temperature distribution of a tumor imitator inside a phantom. Our experimental result showed that the thermal properties of tumor imitator agreed well with the properties of a real tumor