Ionization coefficient approach to modeling breakdown in nonuniform geometries.
This report summarizes the work on breakdown modeling in nonuniform geometries by the ionization coefficient approach. Included are: (1) fits to primary and secondary ionization coefficients used in the modeling; (2) analytical test cases for sphere-to-sphere, wire-to-wire, corner, coaxial, and rod-to-plane geometries; a compilation of experimental data with source references; comparisons between code results, test case results, and experimental data. A simple criterion is proposed to differentiate between corona and spark. The effect of a dielectric surface on avalanche growth is examined by means of Monte Carlo simulations. The presence of a clean dry surface does not appear to enhance growth.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 918222
- Report Number(s):
- SAND2003-4078
- Country of Publication:
- United States
- Language:
- English
Similar Records
Spark Breakdown Threshold in Non-Uniform Fields
Avalanche ionization and dielectric breakdown in silicon with ultrafast laser pulses
Effect of Dielectric Photoemission on Surface Breakdown: An LDRD Report
Technical Report
·
Thu Dec 31 23:00:00 EST 2015
·
OSTI ID:1599530
Avalanche ionization and dielectric breakdown in silicon with ultrafast laser pulses
Journal Article
·
Fri Jul 31 20:00:00 EDT 1998
· Physical Review, B: Condensed Matter
·
OSTI ID:639098
Effect of Dielectric Photoemission on Surface Breakdown: An LDRD Report
Technical Report
·
Thu May 01 00:00:00 EDT 2003
·
OSTI ID:811483