Development of Millimeter and Submillimeter wave Irradiation Apparatus for Living Body

在本研究项目中，我们开发了一种导管装置，适用于使用专门设计的回旋管，GYROTRON FU-IV，作为辐射源照射在活体上。该回旋管工作在连续和脉冲两种工作模式下，工作在TE<03>模式，频率302 GHz，功率30 W。用于辐射实验的天线是喇叭天线和特氟隆棒天线。这是回旋管首次应用于生物体辐射装置。对辐照样品的变性分布和表面温度的初步测量表明，回旋管适用于普通的生物体辐射装置。对活体大鼠和小鼠移植的癌肿瘤进行辐照，证实了癌症辐射装置的正常工作。正在进行改进，以增强细长导管波导和天线的亚毫米波的窄焦点，以允许在更高频率下的局部辐射。

In this research project, we have developed a catheter apparatus suitable for irradiation on the living bodies using a specially designed gyrotron, GYROTRON FU-IV, as a radiation source. The gyrotron is operated in both CW andpulsed regime at TE_<03> mode with the frequency 302 GHz and the power 30 W. The used antennas for the irradiation experiments are a horn antenna and Teflon rod antennas. This is the first application of gyrotrons to radiation apparatus for the living body.Preliminary measurements on the denaturation distribution and the surface temperature of irradiated samples suggest that they are appropriate for the common radiation apparatus for the living body.Irradiation on living rats and a cancerous tumor implanted in mice confirms the normal operation of the radiation apparatus for a cancer. Improvements are underway to enhance the slim catheter waveguide and the narrow focus of submillimeter wave of the antenna to allow localized radiation at still higher frequencies.