Cryogenic Tests of a 704 MHz 1 MW Power Coupler

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  • Author: G. Devanz, D. Braud, P. Carbonnier, J.-P. Charrier, S. Chel, M. Desmons, A. Hamdi, H. Jenhani, D. Roudier, P. Sahuquet

Coaxial power couplers capable of handling 1MW peak power have been developed for high intensity superconducting proton linacs. They have been conditioned in travelling wave up to the maximum power available on the Saclay test bench, 1.2 MW forward peak power, up to 10% duty cycle. One coupler has been assembled on a 5-cell medium beta cavity in the class 10 area of the clean-room, and installed in our horizontal test cryostat Cryholab. This paper focuses on the RF operation of the coupler in this cryogenic environment and thermal aspects.

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