A high-power Faraday cup was designed to absorb and stop the beam to protect the superconducting cavity during the beam commissioning of 80 MeV drift tube linear accelerator(DTL)in China Spallation Neutron Source phase II(CSNS-II).The energy deposition of 80MeV proton b...MORE A high-power Faraday cup was designed to absorb and stop the beam to protect the superconducting cavity during the beam commissioning of 80 MeV drift tube linear accelerator(DTL)in China Spallation Neutron Source phase II(CSNS-II).The energy deposition of 80MeV proton bea...