15–19 Sept 2019
Orto Botanico - Padova
Europe/Rome timezone

Breakdown-loaded electric field as a high gradient limit

16 Sept 2019, 17:00
20m
Orto Botanico - Auditorium

Orto Botanico - Auditorium

Oral Modeling and Simulations Modeling and Simulations - Applications

Speaker

Mr Jan Paszkiewicz (University of Oxford (GB))

Description

A novel quantity for predicting the ultimate performance of high-gradient radiofrequency accelerating structures is presented and compared with earlier quantities that it builds on such as the modified Poynting vector. This new method models a nascent RF breakdown as a current-carrying antenna and calculates the coupling of the antenna to the RF power source. Along with a simple emission model fitted to experimental data, an equilibrium breakdown-loaded surface electric field distribution is calculated and found to be well-correlated with spatial breakdown distributions.

Authors

Mr Jan Paszkiewicz (University of Oxford (GB)) Walter Wuensch (CERN) Alexej Grudiev (CERN)

Presentation materials