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Browsing by Subject "vacuum arc model"

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A General Model of Vacuum Arcs in Linacs

Norem, J.; Insepov, Z. (Proceedings of NAPAC2016, Chicago, IL, USA, 2017-01)

We are developing a general model of breakdown and gradient limits that applies to accelerators, along with other high field applications such as power grids and laser ablation. We have considered connections with failure ...
Can surface cracks and unipolar arcs explain breakdown and gradient limits?

Insepov, Z.; Norem, J. (J. Vac. Sci. Technol, 2013)

We argue that the physics of unipolar arcs and surface cracks can help understand rf breakdown, and vacuum arc data. We outline a model of the basic mechanisms involved in breakdown and explore how the physics of unipolar ...
Computational problems in modeling arcs

Norem, J.; Insepov, Z. (American Institute of Physics, 2016-10)

We explore the reasons why there seems to be no common model for vacuum arcs, in spite of the importance of the field and the level of effort expended over more than one hundred years.
Modeling arcs

Insepov, Z.; Norem, J.; Vetizer, S.; Mahalingam, S. (American Institute of Physics, 2011-12)

Although vacuum arcs were first identified over 110 years ago, they are not yet well understood. We have since developed a model of breakdown and gradient limits that tries to explain, in a self-consistent way: arc triggering, ...
Modeling of High-Gradient Vacuum Breakdown

Ainabayev, A.; Berdenova, B.; Norem, J.; Insepov, Z. (arXiv preprint arXiv:1410.6501, 2014)

Comsol finite element technique was applied to study heating and cooling of a microspot on the cathode surface. The reasons why there seems to be no common model for vacuum arcs, in spite of the importance of this field ...
Modeling Vacuum Arcs

Insepov, Z.; Norem, J.; Proslier, T.; Huang, D.; Mahalingam, S.; Veitzer, S. (arXiv preprint arXiv:1006.3770, 2010)
Modeling vacuum arcs in linac structures

Norem, J.; Moretti, A.; Insepov, Z.; Nurkenov, S. (Proceedings of PAC2013, Pasadena, 2013)

We describe our vacuum arc model, which divides breakdown into four stages: trigger, plasma formation, plasma evolution and surface damage. We have modeled all four stages numerically and find that the properties of surface ...