[seminar] Multiplicator simulation for Linac cavities and couplers

par Ningyuan Hu (IJCLab)

mardi 7 déc. 2021, 11:00 → 12:00 Europe/Paris

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Abstract

The multipactor effect can lead to thermal breakdown (quench), high field emission and limited accelerating gradient in superconducting accelerator devices. To determine the multipactor breakdown power level, multipactor simulations can be performed. In IJCLab/IN2P3/CNRS, Spark3D has been used to simulate the multipactor effect in the cavities and the couplers. The breakdown power level, the multipactor order and the most prominent location of multipactor are presented. Finally, the simulation results are compared with the measurements.