Grounding for EMC at the European XFEL

H. Kapitza, H. Eckoldt, M. Faesing
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Abstract

The European X-Ray Free Electron Laser (XFEL) research facility is currently being built at Deutsches Elektronensynchrotron (DESY) in Hamburg, Germany. In this large underground facility high power RF stations are operated next to high precision diagnostics instruments. This made electromagnetic compatibility (EMC) an important issue from the very beginning of the project. A well-designed grounding system with a hierarchical structure is an essential ingredient for safety and EMC. Important parts of the facility ground were implemented in the course of the civil construction work. The specialties of tunnel boring and building far below the ground water level had to be taken into account. Some aspects of facility grounding were investigated at the free electron laser facility FLASH which operates for users at DESY for some years.
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欧洲XFEL的EMC接地
欧洲x射线自由电子激光器(XFEL)研究设施目前正在德国汉堡的德国电子同步加速器(DESY)建造。在这个大型地下设施中,高功率射频站在高精度诊断仪器旁边运行。这使得电磁兼容性(EMC)从项目一开始就成为一个重要的问题。一个设计良好、具有分层结构的接地系统是安全和电磁兼容的重要组成部分。在土建施工过程中,对设施地面的重要部分进行了施工。隧道开挖和施工的特点,远低于地下水位必须考虑。在自由电子激光设备FLASH上对设备接地的某些方面进行了研究,该设备为DESY的用户运行了几年。
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