Installation and commissioning of the e/sup +//e/sup -/ injector for DA/spl Phi/NE at Frascati

The electron-positron injector for the DA/spl Phi/NE project at INFN-LFN is being installed and will begin commissioning this summer at Frascati. This is a S-band RF linac system utilizing four 45 MW SLEDed klystrons and 15, 3 m traveling-wave accelerating sections. It is designed to deliver a 250 MeV, 4 ampere electron beam to the positron converter, followed by an accelerator that captures and accelerates the resulting positrons to the ring injection voltage of 510 MeV. All major subsystems are in place. This system is undergoing final installation, alignment and subsystem testing. Also, system integration is beginning. Beam testing and positron generation will begin this summer. Commissioning and final acceptance are expected to be complete by the end of the year.