摘要：The BEPCⅡ injector linac upgrade goal aims at higher beam energy with smaller beam emittance and energy spread to meet the colliding luminosity upgrade by two orders of *** paper describes the beam commissioning and *** beam energy,energy spread,current,transmission and emittance have met the design *** beam orbit and energy instabilities have been studied and a steady beam operation has been realized.

摘要：The BEPC RF system has been changed to superconducting cavities during the last four *** the Summer of 2006,the high power test had been successfully *** November,the East RF was put into commis- *** SRF system above 1.0MV voltage has been reached with the e^+/e^- collision beam over 100mA,and the beam current improved to 2.5GeV/250mA with 100kW beam *** beam test shows the good matching of the RF parameters with measuring value and theoretic *** commissioning and the high power test will be presented in this paper.