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Updated: May 6, 2026

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Fabrication and Characterization of Superconducting Resonators
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使用基于RFSoC的LLRF系统对C频段线性加速结构进行高功率测试
1SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
The Review of scientific instruments
|April 23, 2025
概括
使用RFSoC技术的新型紧且经济实惠的下一代低级无线电频率 (NG-LLRF) 系统显著提高了粒子加速器的性能. 它实现幅度和相位波动低于0.15%,超过了未来碰撞器的要求.
科学领域:
- 粒子加速器技术 粒子加速器技术
- 射频系统工程 射频系统工程
- 高能物理仪器仪器仪表 高能物理仪器仪表
背景情况:
- 传统的低级无线电频率 (LLRF) 系统使用模拟组件,从而增加了硬件复杂性,成本和足迹,更多的无线电频率 (RF) 频道.
- 对于未来粒子加速器的开发,对紧和负担得起的解决方案的需求至关重要.
研究的目的:
- 使用RFSoC技术设计和评估一个具有更高集成水平的下一代LLRF (NG-LLRF) 系统.
- 为了减少未来加速器LLRF硬件的足迹,组件成本和系统复杂性.
主要方法:
- 开发了一个基于RFSoC技术的NG-LLRF系统,允许直接采集RF信号和数字RF混合.
- 在循环回归模式下对系统进行了特征测试,并将其与用于高达16.45兆瓦的高峰射频功率的冷铜碰撞机 (C3) 的立体波加速结构原型进行了测试.
主要成果:
- 循环回路测试显示振幅波动低于0.15%和相位波动低于0.15°,超过C3要求.
- 测量了来自不同功率级别的加速结构不同阶段的RF信号,为控制算法设计提供了关键数据.
- 在波形调制中表现出灵活性,可用于控制射频站.
结论:
- 利用RFSoC技术的NG-LLRF系统为粒子加速器提供了一个紧,经济实惠和高性能的解决方案.
- 与现有系统和未来加速器要求相比,实现了优越的振幅和相位稳定性.
- 该系统的灵活性和性能使其成为加速器控制的宝贵进步.
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