# Design of a Cavity for the High-Power Radio-Frequency Quadrupole Coupler Test for the ANTHEM Project

## TL;DR

This paper describes the design of a cavity for testing high-power radio-frequency components in the ANTHEM project.

## Contribution

A novel cavity design for high-power RFQ coupler testing with optimized coupling and frequency operation is introduced.

## Key findings

- The cavity design supports up to 140 kW in continuous wave operation.
- Thermal and structural assessments were performed using numerical simulations.

## Abstract

The ANTHEM (Advanced Technologies for Human-centered Medicine) Radio-Frequency Quadrupole (RFQ) will employ eight coaxial power couplers, which will be magnetically coupled to the device through a loop antenna. The coupler design can support up to 140 kW in continuous wave operation. This paper presents the design of the cavity used for high-power testing, with the primary objectives of both optimizing the coupling between the couplers and ensuring operations at the designated operating frequency. Furthermore, the paper encompasses thermal and structural assessments conducted through numerical simulations.