Part 1: Detailed Electromagnetic Design of an Integrated and Compact 1.3 GHZ Superconducting Radio Frequency (SRF) Electron

Abstract

There exists a need for compact, reliable, high-power electron sources for applications including those in water treatment, basic science, defense, and security. There also exists a need for compact electron-beam based light and power sources of various power levels and at different frequencies (mm-wave to gamma rays) for applications also in the fields of basic science, industry, and defense and security. Today's examples of high-average-power electron sources are neither very compact nor highly efficient. The same may be said for many of the electron-beam based light sources operated worldwide for myriad of applications. Recent breakthroughs in superconducting (SC) materials technology, radio-frequency (RF) power systems, specialized cathodes, and RF cavity designs offer ways to overcome the above-mentioned shortcomings. In this report, all these new features are integrated in a comprehensive design into one promising concept for a compact superconducting RF (SRF) high-average power electron linear accelerator. This design is capable of 5-50 kW average electron beam power and continuous wave operation with the corresponding electron beam energy up to 10 MeV.

PART 2: Initial Beam Dynamics Results of an Integrated and Compact 1.3 GHZ Superconducting Radio Frequency (SRF) Electron Source

“…In this paper, we have performed charged-particle tracking simulations using SMASON and ASTRA (and SPIFFE) to assess the beam properties through the entire designed system [1] with a design goal of generating an electron beam power of at least 3 kW and up to 10-MeV beam energy. We are confident from the results that our design has merit and shows potential for operation.…”