• H.F. Ouyang, Y.L. Chi, W. He, T. Huang, G. Li, Y.M. Liu, Y.H. Lu, X.B. Wu, T.G. Xu, H.S. Zhang, J. S. Zhang, F.X. Zhao
  IHEP Beijing, Beijing
• D.C. Faircloth
  STFC/RAL, Chilton, Didcot, Oxon

The type of the H^- ion source foe CSNS is a Penning Surface Plasma Source (SPS). The output energy of the source is 50keV and the pulsed current of H^- beam is 20mA with a rms. emittance of 0.2π mm.mrad. The construction of H^- ion source test stand for CSNS is finished and commissioning of the source is being done. Up to now, stable H^- ion beam with a current up to 45mA and energy of 50keV is achieved. Emittance measurements of the beam is also being prepared.