Study of Multipactor Effect with Applications to Superconductive Radiofrequency Cavities
Abstract
In this paper a one-dimensional Particle-in-Cell/Monte Carlo collision code has been used in order to study characteristics of multipactors. For multipactor to occur each electron striking the surface must generate more than one secondary on average. The ratio of primary to secondary electrons is given by the secondary emission yield. For this study, calculations were carried out by using Sternglass model that includes energy dependence of the secondary emission yield. The obtained simulation results for the pressure dependence of the breakdown time follow the scaling law. Number of electrons increases in time, while their mean energy decreases. Since secondary electron emission at the cavity surface plays an important role, simulation results, presented here, can help cavity designers predict multipacting issues before fabrication.
Keywords:
RF cavitie / multipactor effect / secondary electron emissionSource:
Nuclear technology and radiation protection, 2017, 32, 2, 115-119Projects:
- Fundamental processes and applications of particle transport in non-equilibrium plasmas, traps and nanostructures (RS-171037)
- Physics and Chemistry with Ion Beams (RS-45006)
DOI: 10.2298/NTRP1702115R
ISSN: 1451-3994
WoS: 000405445800001
Scopus: 2-s2.0-85026485053
Collections
Institution
VinčaTY - JOUR AU - Radmilovc-Radjenovic, Marija D. AU - Beličev, Petar AU - Radjenovic, Branislav M. PY - 2017 UR - http://vinar.vin.bg.ac.rs/handle/123456789/1642 AB - In this paper a one-dimensional Particle-in-Cell/Monte Carlo collision code has been used in order to study characteristics of multipactors. For multipactor to occur each electron striking the surface must generate more than one secondary on average. The ratio of primary to secondary electrons is given by the secondary emission yield. For this study, calculations were carried out by using Sternglass model that includes energy dependence of the secondary emission yield. The obtained simulation results for the pressure dependence of the breakdown time follow the scaling law. Number of electrons increases in time, while their mean energy decreases. Since secondary electron emission at the cavity surface plays an important role, simulation results, presented here, can help cavity designers predict multipacting issues before fabrication. T2 - Nuclear technology and radiation protection T1 - Study of Multipactor Effect with Applications to Superconductive Radiofrequency Cavities VL - 32 IS - 2 SP - 115 EP - 119 DO - 10.2298/NTRP1702115R ER -
@article{ author = "Radmilovc-Radjenovic, Marija D. and Beličev, Petar and Radjenovic, Branislav M.", year = "2017", url = "http://vinar.vin.bg.ac.rs/handle/123456789/1642", abstract = "In this paper a one-dimensional Particle-in-Cell/Monte Carlo collision code has been used in order to study characteristics of multipactors. For multipactor to occur each electron striking the surface must generate more than one secondary on average. The ratio of primary to secondary electrons is given by the secondary emission yield. For this study, calculations were carried out by using Sternglass model that includes energy dependence of the secondary emission yield. The obtained simulation results for the pressure dependence of the breakdown time follow the scaling law. Number of electrons increases in time, while their mean energy decreases. Since secondary electron emission at the cavity surface plays an important role, simulation results, presented here, can help cavity designers predict multipacting issues before fabrication.", journal = "Nuclear technology and radiation protection", title = "Study of Multipactor Effect with Applications to Superconductive Radiofrequency Cavities", volume = "32", number = "2", pages = "115-119", doi = "10.2298/NTRP1702115R" }
Radmilovc-Radjenovic MD, Beličev P, Radjenovic BM. Study of Multipactor Effect with Applications to Superconductive Radiofrequency Cavities. Nuclear technology and radiation protection. 2017;32(2):115-119
Radmilovc-Radjenovic, M. D., Beličev, P.,& Radjenovic, B. M. (2017). Study of Multipactor Effect with Applications to Superconductive Radiofrequency Cavities. Nuclear technology and radiation protection, 32(2), 115-119. https://doi.org/10.2298/NTRP1702115R
Radmilovc-Radjenovic Marija D., Beličev Petar, Radjenovic Branislav M., "Study of Multipactor Effect with Applications to Superconductive Radiofrequency Cavities" 32, no. 2 (2017):115-119, https://doi.org/10.2298/NTRP1702115R .