Author: Tang, J.Y.
Paper Title Page
THO2LR03
Beam Halo Control Study on the ADS Superconducting Linac Design at IHEP  
 
  • F. Yan, H. Geng, C. Meng, S. Pei, J.Y. Tang
    IHEP, Beijing, People's Republic of China
  • Z. Li
    SCU, Chengdu, People's Republic of China
 
  The Accelerator Driven sub-critical System (ADS) has an extremely low beam loss rate demand for the driver linac because of the high power intensity needed to be transferred to the target. China ADS project is proposed to build a 15 MW proton linac with final energy of 1.5 GeV and an average beam current of 10 mA. Fulfilling the 1 W/m power losses restriction along the whole linac posed a very high requirement on the stability of the driver linac design. Most of the beam losses in this level associated with the halo particles. In the design stage of China ADS linac, the beam halo are controlled in several aspects according to the halo formation mechanisms. Reasonable designs have been achieved for the China ADS Injector-I with few percentage of normalized rms emittances. Extensive error analysis were carried out to test the stability of the Injector-I design. The design considerations, the results of an optimized design and the beam dynamic simulations including machine errors are introduced and presented in detail.  
slides icon Slides THO2LR03 [3.023 MB]