TY  - JOUR
AU  - Radmilović-Rađenović, Marija
AU  - Beličev, Petar
AU  - Rađenović, Branislav
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=1451-39941800003R
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8118
AB  - Electron field emission limiting the accelerating gradient in superconducting cavities remains the dominant setback in cavity production. The need to understand and control the field emission has become increasingly important because of the prospect of using high-gradient structures in linear colliders. Since building an accelerator structure is a complicated and cosily process, elimination of unnecessary steps has priority. In this paper an analysis of the influence of the enhanced field emission in superconducting radio frequency cavity together with modal field calculations by using COMSOL finite elements package has been presented. The obtained results reveal that the electric field required for the field emission is generated in the cavity irises. The imperfection of the cavity surface leading to very high fields is modelled by a simple cone. The estimated value of the enhancement factor for the cone lip of around 4 is in agood agreement with the data found in the literature. In addition, from the slopes and the intercepts of the Fowler-Nordheim plots, a dependence of the enhancement factor and the effective area on the work function has been estimated. © 2018; Vinca Inst Nuclear Sci. All rights reserved.
T2  - Nuclear Technology and Radiation Protection
T1  - The effect of the enhanced field emission on the characteristics of the superconducting radio frequency cavities
VL  - 33
IS  - 4
SP  - 341
EP  - 346
DO  - 10.2298/NTRP180427003R
ER  - 

@article{
author = "Radmilović-Rađenović, Marija and Beličev, Petar and Rađenović, Branislav",
year = "2018",
abstract = "Electron field emission limiting the accelerating gradient in superconducting cavities remains the dominant setback in cavity production. The need to understand and control the field emission has become increasingly important because of the prospect of using high-gradient structures in linear colliders. Since building an accelerator structure is a complicated and cosily process, elimination of unnecessary steps has priority. In this paper an analysis of the influence of the enhanced field emission in superconducting radio frequency cavity together with modal field calculations by using COMSOL finite elements package has been presented. The obtained results reveal that the electric field required for the field emission is generated in the cavity irises. The imperfection of the cavity surface leading to very high fields is modelled by a simple cone. The estimated value of the enhancement factor for the cone lip of around 4 is in agood agreement with the data found in the literature. In addition, from the slopes and the intercepts of the Fowler-Nordheim plots, a dependence of the enhancement factor and the effective area on the work function has been estimated. © 2018; Vinca Inst Nuclear Sci. All rights reserved.",
journal = "Nuclear Technology and Radiation Protection",
title = "The effect of the enhanced field emission on the characteristics of the superconducting radio frequency cavities",
volume = "33",
number = "4",
pages = "341-346",
doi = "10.2298/NTRP180427003R"
}

Radmilović-Rađenović, M., Beličev, P.,& Rađenović, B.. (2018). The effect of the enhanced field emission on the characteristics of the superconducting radio frequency cavities. in Nuclear Technology and Radiation Protection, 33(4), 341-346.
https://doi.org/10.2298/NTRP180427003R

Radmilović-Rađenović M, Beličev P, Rađenović B. The effect of the enhanced field emission on the characteristics of the superconducting radio frequency cavities. in Nuclear Technology and Radiation Protection. 2018;33(4):341-346.
doi:10.2298/NTRP180427003R .

Radmilović-Rađenović, Marija, Beličev, Petar, Rađenović, Branislav, "The effect of the enhanced field emission on the characteristics of the superconducting radio frequency cavities" in Nuclear Technology and Radiation Protection, 33, no. 4 (2018):341-346,
https://doi.org/10.2298/NTRP180427003R . .