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在微波治癌中,为使微波辐射集中在病区范围内,必须进一步提高辐射器的聚束能力。目前提高辐射器聚束能力的方法有:在辐射器上加装陶瓷透镜;在辐射器内充填微波低损耗介质;用双辐射器在不同方位同时照射病区等。但由于辐射器的微波束的张角太大,上述方法只能使聚束能力有限地提高。在2450Hz微波电疗机使用的辐射器中,直径8.5cm圆柱形辐射器的微波束张角较小,聚束能力较强.笔者以它为研究对象,运用
In microwave cancer, in order to make the microwave radiation concentrated in the ward range, it is necessary to further improve the beaming ability of the radiator. At present, the methods for improving the beam-forming capability of the radiators include: adding a ceramic lens to the radiator; filling the microwave with low-loss media in the radiator; and irradiating the ward with the dual radiators in different directions at the same time. However, the above method only allows for a limited increase in the bunching capacity due to the wide beam opening angle of the radiator. In the 2450Hz microwave radiotherapy machine used in the radiator, the diameter of 8.5cm cylindrical radiator beam angle smaller, stronger bunching ability.The author take it as the research object, the use of