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Description
Additive manufacturing (AM) has proven to be a powerful technique for rapid prototyping and the fabrication of complex geometries. For use in a 433 MHz IH-DTL cavity, a CF40 coupler was developed and manufactured from high-purity copper using a 3D printing process. It incorporates a water-cooling concept that would be impossible to implement using conventional manufacturing methods. The coupler features a ceramic window water cooled on both sides, an outer conductor with spiral cooling channels, and a water cooled inner conductor. Optimal power transmission is frequency-dependent and is fine-tuned by adjusting the inner conductor geometry through CST simulations. Initial tests were carried out to condition the Franz-IH at power levels of up to 10 kW continuous wave (CW).
