41st IEEE International Conference on Plasma Science, ICOPS 2014 and the 20th IEEE International Conference on High-Power Particle Beams, BEAMS 2014, pp.7012706
Abstract
Modeling a gyrotron cavity in 3D and time-domain is very challenging due to the open-end features of cavity structure and higher-order mode excitation employed to achieve high efficiency. In this work, a 3D conformal finite-difference time-domain (CFDTD) method has been developed to perform a cold test of a gyrotron cavity. Arbitrarily high order modes can be launched in a gyrotron cavity in time domain to determine the open cavity resonant characteristics. Our preliminary results show that the 3D CFDTD method could provide an alternative modeling tool for designing and validating a gyrotron cavity configuration for further hot tests.
Publisher
Institute of Electrical and Electronics Engineers Inc.