Study on the Factors Influencing on the Variation of the Temperature in Cell Suspensions Exposed to Microwaves Based on the Temperature Sensor Technique

Because of convenient and price cheap, microwave therapy is an effective method to treat leukemia now. However it is quite difficult to detect with nondestrctive method and control accurately the temperature inside the purifying material exposed to microwaves. If the temperature is lower, the luekimic cell can not be killed effectively. But if the temperature is too high, the normal and cancer cell should be killed together. In this paper, the influence factors on the temperature variation in suspensions exposed to microwaves were studied so as to the temperature can be controlled effectively. The results show that there are many factors influencing on the temperature change in suspensions exposed to microwaves, and among them the influence of microwaves power is the biggest. The surface temperature was measured by a temperature sensor, then the inside temperature can be calculated according to the difference between inside and outside liquids. Further, an automatic control system of microwave power was used to control the inside temperature in an appropriate range, at which the normal cells were protected and the cancer cell were killed effectively.