A modified and calibrated drift-diffusion-reaction model for time-domain analysis of charging phenomena in electron-beam irradiated insulators

Behrouz Raftaritangabi, Neil Budko, Kees Vuik

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)
19 Downloads (Pure)

Abstract

This paper presents a modified self-consistent drift-diffusion-reaction model suitable for the analysis of electron-beam irradiated insulators at both short and long time scales. A novel boundary condition is employed that takes into account the reverse electron current and a fully dynamic trap-assisted generation-recombination mechanism is implemented. Sensitivity of the model with respect to material parameters is investigated and a calibration procedure is developed that reproduces experimental yield-energy curves for uncharged insulators. Long-time charging and yield variations are analyzed for stationary defocused and focused beams as well as moving beams dynamically scanning composite insulators.

Original languageEnglish
Article number051307
Pages (from-to)1-24
Number of pages24
JournalAIP Advances
Volume8
Issue number1
DOIs
Publication statusPublished - 2018

Keywords

  • Electron beams
  • Signal processing
  • Stellar structure and properties
  • Electric currents
  • Surface collisions

Fingerprint Dive into the research topics of 'A modified and calibrated drift-diffusion-reaction model for time-domain analysis of charging phenomena in electron-beam irradiated insulators'. Together they form a unique fingerprint.

Cite this