Series production of copper and niobium cavities for the Spallation Neutron Source

Over the last one and a half years, ACCEL has been working on two large scale cavity series production - the normal conducting CCL type copper cavities and all superconducting 6-cell cavities for the linac of the Spallation Neutron Source SNS. For both projects, the prototype phase is finished and we are in the middle of the series production. Tuning results on the normal conducting cavities will be presented as well as the cold RF test results of the superconducting medium beta cavity production. Experiences gained for future large scale cavity production will be presented.