摘要
利用蛋清凝固热图实验和漏能功率仪测量 ,分析了不同的医用微波辐射器的能量分布 .指出单极子天线根部辐射能量较大 ,顶部较弱 ,不适宜作为医用微波体内辐射器 .而实验显示螺旋型天线在靠近顶部时是最强的 ,辐射能量集中而有效 .实验结果和多例临床应用证明 :螺旋型天线稳定、高效、安全 ,在临床上用有着广泛的应用前景 。
The results, albumen thermo-solidification experiment and leaking dynamometer are used to investigate the radiant power density field radiated from a microwave antenna, show that the microwave field radiated from the monopole antennas, which are used usually in clinical treatments now, is not uniform. The radiation intensity near the root part of the antenna is strong,and near the top part, which is close to affected part, is rather weak. The suggests that monopole antenna was inefficient and was not ideal as a microwave antenna for in-body. For the helical antenna, however near the top part the radiation intensity was rather strong, and the radiation was concentrative and efficient. Experiment results and many clinical examples suggest that the helical microwave antenna is a dependable, stable, safe and efficient one, and has a wide applicant future in clinical practice.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第4期297-301,共5页
Journal of Infrared and Millimeter Waves
