Design of a symmetric coupler for superconducting elliptical cavities

Cryogenic Engineering Conference 2015

材料科学;物理学

Eichhorn, R.^1 ; Egerer, C.^1 ; Robbins, J.^1 ; Veshcherevich, V.^1

Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca

NY

14853-5001, United States^1

关键词: Coaxial line;    Low emittance;    Particle loss;    Power coupler;    Superconducting accelerating cavities;    Superconducting elliptical cavities;    Symmetric couplers;    Transition lines;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/101/1/012099/pdf
DOI  :  10.1088/1757-899X/101/1/012099

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

As kicks from fundamental power couplers become a concern for low emittance future accelerators, a design for a symmetric coupler for superconducting accelerating cavities has been started. In this coupler, a rectangular waveguide transforms into a coaxial line inside the beam pipe to feed the cavity. So far the RF design revealed an extremely low transversal kick on which we will elaborate. We will also address concerns about cooling and the thermal stability of the coaxial transition line. Therefore, we will calculate the heat, heat transfer and thermal stability of this coupler and evaluate the risk of quenching due to particle losses on the coupler.