**Journal Club: Experiment & Phenomenology - google meet**

Study of Multi-Beam Klystron (MBK)

Mohammad Ostovar, Iranian Light Source Facility (ILSF) & IPM

20 SEP 2021

11:00 - 12:00

Abstract: Due to the recent growth in applications of microwave energy in science and industry, the necessity to increase the efficiency of microwave amplifiers is essential than ever. Using a multi-beam design Instead of a single beam is a solution to increase the efficiency of the klystron amplifier. Also, the optimal design of the cavities to get the maximum value of the R/Q ratio can increase the efficiency of the klystron and reduce its circuit length in specific output power. The geometric characteristics of the cavities are the only effective parameters on the R/Q ratio. Furthermore, in the extraction cavity, the asymmetry of the electric field's distribution due to output coupling reduces the overall efficiency. This research has investigated the optimal design of a forty beam klystron's extraction cavity and study the effective parameters on its efficiency.

https://meet.google.com/srr-tnnx-gjs