同轴对称型主耦合器的研制
Design and manufacture of coaxial symmetric input coupler
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摘要: 为更进一步提高注入器的性能，注入器使用的耦合器采用同轴对称耦合。给出了同轴对称耦合器的理论计算、具体设计以及实验情况。经过对模型耦合器多次微波传输测量调试以及对各个部位反射的细致分析，最后获得了较好的结果，证明了该耦合器的实用性和可行性。Abstract: In order to avoid emittance growth due to field asymmetries，a symmetric input coupler is designed. The symmetric coupler is designed as a coaxial input coupler that couples to the cavity on the cavity axis. Asymmetric mode configurations are strongly suppressed since the symmetry of the cavity is not disturbed. In addition the construction of the cooling channels is facilitated since the coupler connects to the gun at an area of low heat deposition. In this paper the design of the parts of coupler is given. The size of the coupler is gained correctly and some experiments have been done. The voltage standing wave ratio of 1.357 is got. The coupler is proved to be practical and feasible.
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Key words:
- coupler /
- rf gun /
- coaxial line /
- waveguide
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