The conceptual design of the pulsed VUV synchrotron radiation (SR) source is reported. This machine has modi®ed racetrack shape (diamond shape) and consist of two superconducting bending magnets, two normal conducting bending magnets, iron yokes, quadrupole magnets and injection system. Maximum magnetic ̄ux density is 7 T. Injector is 100 MeV racetrack microtron and 100 MeV, 10 pps electron bea...