SRF2013 - List of Keywords (hardware)

Paper	Title	Other Keywords	Page
MOP039	Strategy of Technology Transfer of EXFEL Preparation Technology to Industry	cavity, controls, status, linac	197
	A. Matheisen, J. Iversen, A. Schmidt, W. Singer DESY, Hamburg, Germany P. Michelato, L. Monaco INFN/LASA, Segrate (MI), Italy
	For the EXFEL a specification for the cavitiy preparation procedures (R1)was set up and handed to the industrial companies. Basing on this specification companies hard ware as well as process flows were set up. Beside this specified part of the preparation technique the companies personal needed to be educated and the processes ramped up. To check the quality of the infrastructure, status of education of personal and correct set up of process flows, so called Dummy (DCV) - , Reference (RCV ) and Pre-series (PCV) cavities were assigned. We report on the general strategy applied for the EXFEL technology transfer on cavity preparation and the results obtained on the qualification cavities. R1) Series Surface and acceptance test preparation of superconducting cavities for the European Xfel (XFEL/A - D) JUNE 30, 2009

TUP077	Thin Film Coating Optimization for HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film Characterization	cavity, cathode, niobium, SRF	623
	A. Sublet, I. Aviles Santillana, S. Calatroni, P. Costa Pinto, N.M. Jecklin, S. Prunet, A. Sapountzis, W. Venturini Delsolaro, W. Vollenberg CERN, Geneva, Switzerland
	Funding: Work supported in part by a Marie Curie Early Initial Training Network Fellowship of the European Community's 7th Programme under contract number PITN-GA-2010-264330-CATHI. The HIE-ISOLDE project at CERN requires the production of 32 cavities in order to increase the energy of the beam. The Quarter Wave Resonators (QWRs) cavities of complex cylindrical geometry (0.3m diameter and 0.8m height) are made of copper and are coated with a thin superconducting layer of niobium. In the present phase of the project the aim is to obtain a niobium film, using the DC bias diode sputtering technique, providing adequate high quality factor of the cavities and to ensure reproducibility for the future series production. After an overview of the explored coating parameters (hardware and process), the resulting film characteristics, thickness profile along the cavity, structure and morphology (SEM measurements) and Residual Resistivity Ratio (RRR) of the Nb film will be shown. The effect of the sputtering gas process pressure and configuration of the coating setup will be highlighted.

Paper

Title

Other Keywords

Page

MOP039

Strategy of Technology Transfer of EXFEL Preparation Technology to Industry

cavity, controls, status, linac

197

A. Matheisen, J. Iversen, A. Schmidt, W. Singer
DESY, Hamburg, Germany
P. Michelato, L. Monaco
INFN/LASA, Segrate (MI), Italy

For the EXFEL a specification for the cavitiy preparation procedures (R1)was set up and handed to the industrial companies. Basing on this specification companies hard ware as well as process flows were set up. Beside this specified part of the preparation technique the companies personal needed to be educated and the processes ramped up. To check the quality of the infrastructure, status of education of personal and correct set up of process flows, so called Dummy (DCV) - , Reference (RCV ) and Pre-series (PCV) cavities were assigned. We report on the general strategy applied for the EXFEL technology transfer on cavity preparation and the results obtained on the qualification cavities.
R1) Series Surface and acceptance test preparation of superconducting cavities for the European Xfel (XFEL/A - D) JUNE 30, 2009

TUP077

Thin Film Coating Optimization for HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film Characterization

cavity, cathode, niobium, SRF

623

A. Sublet, I. Aviles Santillana, S. Calatroni, P. Costa Pinto, N.M. Jecklin, S. Prunet, A. Sapountzis, W. Venturini Delsolaro, W. Vollenberg
CERN, Geneva, Switzerland

Funding: Work supported in part by a Marie Curie Early Initial Training Network Fellowship of the European Community's 7th Programme under contract number PITN-GA-2010-264330-CATHI.
The HIE-ISOLDE project at CERN requires the production of 32 cavities in order to increase the energy of the beam. The Quarter Wave Resonators (QWRs) cavities of complex cylindrical geometry (0.3m diameter and 0.8m height) are made of copper and are coated with a thin superconducting layer of niobium. In the present phase of the project the aim is to obtain a niobium film, using the DC bias diode sputtering technique, providing adequate high quality factor of the cavities and to ensure reproducibility for the future series production. After an overview of the explored coating parameters (hardware and process), the resulting film characteristics, thickness profile along the cavity, structure and morphology (SEM measurements) and Residual Resistivity Ratio (RRR) of the Nb film will be shown. The effect of the sputtering gas process pressure and configuration of the coating setup will be highlighted.