Development of Fundamental Power Coupler for C-ADS Superconducting Elliptical cavities

Development of Fundamental Power Coupler for C-ADS Superconducting Elliptical cavities
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C-ADS超导椭圆腔基本功率耦合器的研制

DOI:
10.1088/1674-1137/41/6/067001
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发表时间:
2016-10
期刊:
影响因子:
3.6
通讯作者:
孟繁博
孟繁博
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
谷魁祥;邴丰;潘卫民;黄彤明;马强;孟繁博

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中国加速器驱动亚临界系统(C-ADS)中能段的主直线加速器选择了5室椭圆腔。根据设计,每个空腔应通过基频功率耦合器(FPC)驱动高达150 kW的射频(RF)能量。由于型腔的工作具有高质量因数和高加速梯度,因此在装配过程中应避免型腔受到污染。为了满足要求,设计了一种单窗口同轴型耦合器,具有处理高射频功率,10级洁净室组装和热负荷控制的能力。本文介绍了耦合器的设计,并详细介绍了射频设计、热负荷优化和热分析以及多冲击仿真。此外,本文还进行了一次大功率试验。
5-cell elliptical cavities have been selected for the main linac of the China Accelerator Driven sub-critical System (C-ADS) in the medium energy section. According to the design, each cavity should be driven with radio frequency (RF) energy up to 150 kW by a fundamental power coupler (FPC). As the cavities work with high quality factor and high accelerating gradient, the coupler should keep the cavity from contamination in the assembly procedure. To fulfil the requirements, a single-window coaxial type coupler was designed with the capabilities of handling high RF power, class 10 clean room assembly, and heat load control. This paper presents the coupler design and gives details of RF design, heat load optimization and thermal analysis as well as multipacting simulations. In addition, a primary high power test has been performed and is described in this paper.
DOI: --
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