Development of High Power Gyrotron with High Performance
高性能大功率回旋管的研制
基本信息
- 批准号:02044159
- 负责人:
- 金额:$ 1.28万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for international Scientific Research
- 财政年份:1990
- 资助国家:日本
- 起止时间:1990 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The purpose of this research is to achieve the high-power gyrotron with high performance. High performance is achieved by increment in the mode purity of output millimeter wave, stability of oscillation, and increment in the efficiency such as the energy recovering of the spent electron beam. Investigation of the present status and operation on the quasi-optical gyrotron is important in understanding of the present level. The quasi-optical gyrotron in Lausanne is used for the purpose. The millimeter wave with high power through the Kapton window is generated in the Fabry-Perot resonator with the gold plated mirror. Measurement of power is carried out by using octanol which has good dielectric property with the boiling point of 195 degrees. In the measurement of second harmonic oscillation, it is possible to separate the second harmonics from the fundamental oscillation by using the Macor of solid material which has different absorption coefficient at the second harmonics. Frequency measurement is done by the heterodyne method having the harmonic mixer, where local oscillator is swept to analyze the spectrum. Up to date, the quasi-optical gyrotron has a resonator with edge coupling. Experimental results of output pattern from the annular slotted coupling, cassegrain coupling and a lot of longitudinal slotted coupling shows the distorted pattern unsatisfying from the viewpoint of the coupling to the transmission line. To overcome the disadvantage the combination of the curved mirror and the grating is used. In the low power test, the radiation pattern is good and the figure of merit of gaussian beam is 99%. In addition, from the viewpoint of high performance, investigation of new mode-convertor to gaussian beam with high efficiency is also done. We recognize that the new convertor with the efficiency of 97% is developed by Soviets.
本研究的目的是实现高性能的大功率回旋管。通过提高输出毫米波的模式纯度、振荡的稳定性以及提高废电子束的能量回收等效率来实现高性能。研究准光回旋管的现状和运行情况,对于了解其发展水平具有重要意义。洛桑的准光学回旋管用于此目的。利用镀金反射镜在法布里-珀罗谐振腔中产生了高功率的毫米波。功率的测量是用沸点为195度的具有良好介电性能的辛醇进行的。在二次谐波振荡的测量中,利用固体材料的Macor效应,利用其对二次谐波的吸收系数不同,可以将二次谐波从基波振荡中分离出来。频率测量是通过具有谐波混频器的外差方法完成的,其中本振被扫描以分析频谱。目前,准光回旋管的谐振腔是边缘耦合的。对环形缝隙耦合、卡塞格伦耦合和大量纵向缝隙耦合的实验结果表明,从耦合到传输线的角度来看,畸变的方向图是不令人满意的。为了克服这一缺点,采用了曲面镜和光栅的组合。在低功率测试中,辐射方向图良好,高斯光束的品质因数为99%。另外,从高性能的角度出发,对高斯光束的高效模转换进行了研究。我们承认,效率为97%的新型涡轮机是由苏联研制的。
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
B. Jodicke et al.: "500 KW Quasi-Optical Gyrotron for 92 and 184 GHz" Proc. of 15th Inter. Conf. on Infrared and Millimeter Waves. 321-323 (1990)
B. Jodicke 等人:“92 和 184 GHz 的 500 KW 准光学回旋管”Proc。
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- 影响因子:0
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B.Jodike et.al.: "500kW QuasiーOptical Gyrotron for 92 and 185GHz" Proc. of 15th International Conf. on Infrared and Millimeter Waves. 321-323 (1990)
B. Jodike 等人:第 15 届国际红外和毫米波会议的“500kW 准光学回旋管”(1990)。
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OHKUBO Kunizo其他文献
OHKUBO Kunizo的其他文献
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{{ truncateString('OHKUBO Kunizo', 18)}}的其他基金
High Power ECW Injection and MM Wave Transmission
高功率 ECW 注入和 MM 波传输
- 批准号:
11694187 - 财政年份:1999
- 资助金额:
$ 1.28万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
R&D of Transmission System for Millimeter CW High Power
右
- 批准号:
03044156 - 财政年份:1991
- 资助金额:
$ 1.28万 - 项目类别:
Grant-in-Aid for international Scientific Research
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