Improved design of proton source and low energy beam transport line for European Spallation Source.

摘要: The design update of the European Spallation Source (ESS) accelerator is almost complete and construction prototype microwave discharge ion source able to provide a proton beam current larger than 70 mA 3.6 MeV Radio Frequency Quadrupole (RFQ) started. named PS-ESS (Proton for ESS) was designed with flexible magnetic system an extraction merge conservative solutions significant advances. ESS injector has taken advantage recent theoretical updates new plasma diagnostics tools developed at INFN-LNS (Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare). strategy considers low energy transport line as whole, where behaves like neutralized non-thermalized plasma. Innovative have been used hereinafter described. Thermo-mechanical optimization performed withstand chopped misaligned focused over RFQ input collimator; results are reported here.