Author: Gong, K.Y.
Paper Title Page
THPFI025 Design and Experimental Results of an Electro-static Pre-chopper for CSNS LEBT 3351
  • H.C. Liu, S. Fu, K.Y. Gong, H.F. Ouyang, J. Peng
    IHEP, Beijing, People's Republic of China
  The China Spallation Neutron Source (CSNS) front end incorporates a pre-chopper in the Low Energy Beam Transport line (LEBT) that will remove a 530ns section of beam at approximately 1MHz rate, which is the RF frequency of the ring at injection. It’s one of the most critical devices for properly controlling the injecting beam loss. Physical designing of the pre-chopper is carried out, and the RFQ itself was used as the beam dump of the chopper system. In order to examine the reliability of the pre-chopper design, the beam study of a similar chopper system was successfully performed. Results of physical design and experiments will be presented.