Speaker
Description
The European Spallation Source (ESS) LINAC includes a specific section called “Spoke Section” with a row of accelerating structures designed for high power pulsed operation at 352.21 MHz. They consist in 26 superconducting spoke cavities, each one powered by a single RF power source, the RFPS. The spoke cavity RF power demand ranges between 260 kW to 330 kW depending on the proton beam energy and acceleration pattern. The RFPS nominal power have therefore been standardized to 400 kW. The RFPS is a complete system that operates unmanned, based on a chain and a combination of solid state and tetrode amplification’s stages.
The 26 equivalent 400 kW RFPS units will be provided by Elettra as part of the Italian contribution to ESS. Their construction is going to be assigned to the successful contractor according to the public procurement procedure in the framework of a trilateral agreement among ESS, Elettra and INFN, Elettra in charge for the contract management and the technical execution.
The tender specification, the RFPS main features and requested performances are discussed here as well as the implemented strategy to fulfil the quality standard for this contribution.