Conceptual design of an S-band, 6MW Klystron for accelerator applications

Kapil Ram Gavali¹, Madhavi Kurapati¹, Sandip Shrotriya², Manjiri Pande², and Harish V Dixit^1#
1LAMBDA, Department of EEE, BITS-Pilani, Hyderabad Campus, Hyderabad-500 078, India.
²Accelerator Power Control Section, Bhabha Atomic Research Centre (BARC), Mumbai-400 085, India

This paper presents the conceptual design and simulation of an S-band 6 MW Klystron. The design utilizes fundamental analytical theory to determine beam and circuit parameters, and then transitions to AJDISK, a one-dimensional large-signal analysis code, to model beam–wave interaction and avoid the need for time-consuming three-dimensional particle-in-cell (PIC) simulations at the early stages of design. The methodology integrates electron beam dynamics, magnetic focusing, and cavity modelling using established analytical relations. The design and simulation for a 2856 MHz Klystron, achieving a 45% efficiency with 6 MW of peak output power and 45 dB of gain is presented. © Anita Publications. All rights reserved.
Doi: XXX
Keywords: Klystrons, Accelerators, AJDISK, Vacuum Tubes, High Power.

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