Abstract
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, plasma initiation, plasma evolution, surface damage and gradient limits. We use simple PIC codes for modeling plasmas, molecular dynamics for modeling surface breakdown, and surface damage, and mesoscale surface thermodynamics and finite element electrostatic codes for to evaluate surface properties. Since any given experiment seems to have more variables than data points, we have tried to consider a wide variety of arcing (rf structures, e beam welding, laser ablation, etc.) to help constrain the problem, and concentrate on common mechanisms. While the mechanisms can be comparatively simple, modeling can be challenging.
| Original language | English |
|---|---|
| Title of host publication | Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference |
| Pages | 523-530 |
| Number of pages | 8 |
| Volume | 1406 |
| DOIs | |
| Publication status | Published - 2011 |
| Externally published | Yes |
| Event | 19th Topical Conference on Radio Frequency Power in Plasmas - Newport, RI, United States Duration: Jun 1 2011 → Jul 3 2011 |
Other
| Other | 19th Topical Conference on Radio Frequency Power in Plasmas |
|---|---|
| Country | United States |
| City | Newport, RI |
| Period | 6/1/11 → 7/3/11 |
Fingerprint
Keywords
- accelerators
- arcing
- gradient limits
- unipolar arcs
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Modeling arcs. / Insepov, Z.; Norem, J.; Vetizer, S.; Mahalingam, S.
Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference. Vol. 1406 2011. p. 523-530.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Modeling arcs
AU - Insepov, Z.
AU - Norem, J.
AU - Vetizer, S.
AU - Mahalingam, S.
PY - 2011
Y1 - 2011
N2 - 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, plasma initiation, plasma evolution, surface damage and gradient limits. We use simple PIC codes for modeling plasmas, molecular dynamics for modeling surface breakdown, and surface damage, and mesoscale surface thermodynamics and finite element electrostatic codes for to evaluate surface properties. Since any given experiment seems to have more variables than data points, we have tried to consider a wide variety of arcing (rf structures, e beam welding, laser ablation, etc.) to help constrain the problem, and concentrate on common mechanisms. While the mechanisms can be comparatively simple, modeling can be challenging.
AB - 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, plasma initiation, plasma evolution, surface damage and gradient limits. We use simple PIC codes for modeling plasmas, molecular dynamics for modeling surface breakdown, and surface damage, and mesoscale surface thermodynamics and finite element electrostatic codes for to evaluate surface properties. Since any given experiment seems to have more variables than data points, we have tried to consider a wide variety of arcing (rf structures, e beam welding, laser ablation, etc.) to help constrain the problem, and concentrate on common mechanisms. While the mechanisms can be comparatively simple, modeling can be challenging.
KW - accelerators
KW - arcing
KW - gradient limits
KW - unipolar arcs
UR - http://www.scopus.com/inward/record.url?scp=84857936139&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857936139&partnerID=8YFLogxK
U2 - 10.1063/1.3665027
DO - 10.1063/1.3665027
M3 - Conference contribution
AN - SCOPUS:84857936139
SN - 9780735409781
VL - 1406
SP - 523
EP - 530
BT - Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference
ER -