The 250 MeV Section of BEPC 1.1/1.4 GeV e^± Linac

Abstract：

The beam test of the 250 MeV section of the BEPC 1.1/1.4 GeV e^± linac was performed four times during its installation phase. In May 1987, an electron beam of 760 mA and 250 MeV was obtained and a positron beam of 2.5 mA and 99 MeV was observed when an electron beam of 785 mA and 150 MeV bombarded a tungsten target. The main parameters of the linac have met the designed goal and reached the same technical level of similar accelerators in other countries.