LOW-BETA SC H-CAVITY FOR ESS

At present, many accelerators favour the use of SC cavities as accelerating RF structures. For some of them, like long pulse Spallation Source or Transmutation Facility SC structures might be the only option. Here we present the results of based on spoke cavity geometry multi-cell H-cavity (700 MHz, β=0.2). Some technical details of cavity tuning and manufacturing are discussed. The comparison of numerical simulations with first experimental results of 10-gap H-cavity copper model measurements are shown.