论文标题
理解真空弧的综合方法
An integrated Approach to Understanding Vacuum Arcs
论文作者
论文摘要
尽管在大型项目（例如线性乘客和Tokamaks）的设计和成本量中使用，但真空弧和梯度限制的理论尚未得到很好的了解。隔离真空弧后将近120年，弧的确切机制及其造成的损害仍在争论中。我们描述了我们的真空弧的简单和一般模型，该模型可以结合所有主动机制，并旨在解释所有相关数据。我们的四个阶段模型基于在805 MHz进行的实验，具有各种空腔几何形状，磁场和实验技术，以及来自原子探针断层扫描的数据以及微电子学的失败分析。该模型考虑了弧形的触发因素，血浆形成，血浆演化和表面损伤阶段。我们的数据清楚地表明，通过差分冷却产生的表面损伤能够产生局部高场增强$β\ sim 200 $，并在随后的脉冲中弧形。我们更新模型并讨论新功能，同时还指出新数据将在将模型扩展到更广泛的频率范围的位置。
Although used in the design and costing of large projects such as linear colliders and tokamaks, the theory of vacuum arcs and gradient limits is not well understood. Almost 120 years after the isolation of vacuum arcs, the exact mechanisms of the arcs and the damage they produce still being debated. We describe our simple and general model of the vacuum arc that can incorporate all active mechanisms and aims to explain all relevant data. Our four stage model, is based on experiments done at 805 MHz with a variety of cavity geometries, magnetic fields, and experimental techniques as well as data from Atom Probe Tomography and failure analysis of microelectronics. The model considers the trigger, plasma formation, plasma evolution and surface damage phases of the arc. Our data clearly shows surface damage produced by differential cooling capable of producing local high field enhancements $β\sim 200$, and arcing in subsequent pulses. We update the model and discuss new features while also pointing out where new data would be useful in extending the model to a wider range of frequencies.
