An integrated approach to understanding RF vacuum arcs
Norem J. Insepov Z. Hassanein A.
December 2021Nature Research
Scientific Reports
2021#11Issue 1
Although used in the design and costing of large projects such as linear colliders and fusion 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 are 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 RF arc. This paper also examines how known mechanisms can explain the observed sharp field dependence, fast breakdown times and observed surface damage. 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.
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Nano Synergy Inc., Downers Grove, IL, United States
Nazarbayev University, Nur-Sultan, Kazakhstan
National Research Nuclear University, Moscow, Russian Federation
Purdue University, West Lafayette, IN, United States
Nano Synergy Inc.
Nazarbayev University
National Research Nuclear University
Purdue University
10 лет помогаем публиковать статьи Международный издатель
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