Abstract
The basic assumption of the Townsend theory - that ions produce secondary electrons - is valid only in a very narrow range of the reduced electric field E/N. In accordance with the revised Townsend theory that was suggested by Phelps and Petrovic, secondary electrons are produced in collisions of ions, fast neutrals, metastable atoms or photons with the cathode, or in gas phase ionizations by fast neutrals. In this paper we tried to build up a Monte Carlo code that can be used to calculate secondary electron yields for different types of particles. The obtained results are in good agreement with the analytical results of Phelps and. Petrovic [Plasma Sourc. Sci. Technol. 8 (1999) R1].
Highlights
MODELOVANJE PROBOJA U GASOVIMA NA NISKIM PRITISCIMA MONTE KARLO TEHNIKOM*Osnovna pretpostavka Townsend-ove teorije da joni prouzrokuju emisiju sekundarnih elektrona sa katode važi u veoma uskom opsegu vrednosti redukovanog električnog polja E/N
GAS DISCHARGES MODELING BY MONTE CARLO TECHNIQUE
very narrow range of the reduced electric field E/N. In accordance with the revised Townsend theory that was suggested by Phelps
Summary
Osnovna pretpostavka Townsend-ove teorije da joni prouzrokuju emisiju sekundarnih elektrona sa katode važi u veoma uskom opsegu vrednosti redukovanog električnog polja E/N. U skladu sa revidiranom Townsend-ovom teorijom koju su koncipirali Phelps i Petrović, sekundarni elektroni nastaju usled udara jona, brzih neutrala, metastabila i fotona o katodu, ili jonizacijom atoma gasa brzim neutralima. U ovom radu smo pokušali da izgradimo model koji će omogućiti određivanje vrednosti za prinos sekundarnih elektrona za različite tipove čestica, korišćenjem Monte Karlo tehnike. Osnovu modela koji su razvili Phelps i Petrović [4] čini uključivanje dodatnih mogućih izvora sekundarne emisije elektrona, kao i emisije nastale usled dejstva fotona, metastabila na katodu. U ovom radu smo koristili izraze koje su predložili Phelps i Petrović [4], za koeficijente sekundarne emisije elektrona sa katode pri udaru atoma, jona i fotona o površinu katode za čiste Fractional contributions of various processes to electron production at the cathode for Ar at breakdown for clean surfaces, Phelps–Petrović model [4]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
