Primary scheme of superconducting linac-driven XFEL in China
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摘要: 基于超导直线加速器的X射线自由电子激光(XFEL)是自由电子激光领域未来发展的一个重要方向。介绍了国际上Euro-XFEL及LCLS-II等超导XFEL装置的设计建造现状。在此基础上提出基于一台7 GeV超导直线加速器的超导XFEL初步方案,给出主要设计参数,并讨论实现100~1000 GW量级峰值输出功率的技术路线,包括提高峰值流强、采用波荡器磁场渐变技术等。Abstract: The superconducting (SC) linac driven free-electron laser (FEL) is an important development direction in the near future. The present statuses of the worldwide SC linac-driven hard X-ray FEL (SC-HXFEL) facilities, including Euro-XFEL and LCLS-II, are overviewed. A candidate scheme of a constructing SC-HXFEL in China based on a 7 GeV SC linac is proposed. The main parameters of the SC-HXFEL are given and the technical routes to achieve FEL power of up to 1000 GW by increasing peak current and adopting tapering technology are discussed.
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Key words:
- superconducting linac /
- free electron laser /
- hard X-ray /
- peak current /
- tapering technology
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