SRF2011 - List of Authors (Eozénou, F.)

Paper

Title

Page

Vertical Electro-Polishing at CEA Saclay: Commissioning of a New Set-Up and Modeling of the Process Applied to Different Cavities

549

F. Eozénou, S. Chel, Y. Gasser, J.P. Poupeau, C. Servouin, Z. Wang
CEA/DSM/IRFU, France

Funding: We acknowledge the support of the EuCARD, ILC HiGrade and ASTRE programs.
High performance required for elliptical low beta cavity makes the electro-polishing desirable for their surface treatment. For large dimension cavities, the EP treatment in vertical configuration (abbreviated as VEP) is more appropriate. A VEP set-up has been designed at Saclay for the electro-polishing of such cavities. The electrolyte will be circulating and the process automated, including several safety procedures. Chosen equipment will make it possible to use a wide range of parameters (voltage, flowrate, temperature, nitrogen inerting) with R&D purpose in mind. R&D will guide the choice of adapted parameters in such configuration. In addition, VEP has been modeled using COMSOL software with 2D axi - symmetry configuration for 2 different cavities: - 9Cell ILC cavity - Proton 5Cell cavity for SPL accelerator. Different cathodes have been designed to optimize the fluid and the electric field distribution during VEP. Respective results will be presented. At last, importance of the size of the cavity will be commented.

Poster TUPO062 [2.067 MB]

Paper	Title	Page
TUPO062	Vertical Electro-Polishing at CEA Saclay: Commissioning of a New Set-Up and Modeling of the Process Applied to Different Cavities	549
	F. Eozénou, S. Chel, Y. Gasser, J.P. Poupeau, C. Servouin, Z. Wang CEA/DSM/IRFU, France
	Funding: We acknowledge the support of the EuCARD, ILC HiGrade and ASTRE programs. High performance required for elliptical low beta cavity makes the electro-polishing desirable for their surface treatment. For large dimension cavities, the EP treatment in vertical configuration (abbreviated as VEP) is more appropriate. A VEP set-up has been designed at Saclay for the electro-polishing of such cavities. The electrolyte will be circulating and the process automated, including several safety procedures. Chosen equipment will make it possible to use a wide range of parameters (voltage, flowrate, temperature, nitrogen inerting) with R&D purpose in mind. R&D will guide the choice of adapted parameters in such configuration. In addition, VEP has been modeled using COMSOL software with 2D axi - symmetry configuration for 2 different cavities: - 9Cell ILC cavity - Proton 5Cell cavity for SPL accelerator. Different cathodes have been designed to optimize the fluid and the electric field distribution during VEP. Respective results will be presented. At last, importance of the size of the cavity will be commented.
	Poster TUPO062 [2.067 MB]