Author: Feng, X.Y.
Paper Title Page
THPAB186 Review of Proton Linac Beam Dynamic Simulation Code 4137
 
  • X.Y. Feng, J. Peng
    IHEP CSNS, Guangdong Province, People’s Republic of China
 
  CSNS-II project design a linac accelerates 40 mA H beam from 3.8 MeV to 300 MeV, which should not only overcome the space-charge effect at low energy but also have high efficiency at high energy. Therefore, lots of simulation studies should be done on a variety of codes. Each of them has its own characteristics. For example, MAD can easily match quadrupole fast while it couldn’t do the multiparticle calculation. This paper will introduce some common and efficient code used to design linac and study beam dynamic performance.  
poster icon Poster THPAB186 [0.880 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB186  
About • paper received ※ 17 May 2021       paper accepted ※ 08 July 2021       issue date ※ 11 August 2021  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPAB207 Beam Dynamics Simulation about the Dual Harmonic System by PyORBIT 4194
 
  • H.Y. Liu, X.Y. Feng, L. Huang, M.T. Li, X.H. Lu
    IHEP CSNS, Guangdong Province, People’s Republic of China
  • S. Wang, S.Y. Xu
    IHEP, Beijing, People’s Republic of China
 
  The space charge effect is a strong limitation in high-intensity accelerators, especially for low- and medium-energy proton synchrotrons. And for CSNS-II, the number of particles in the RCS is 3.9·1013 ppp, which is five times of CSNS. To mitigate the effects of the strong space charge effect, CSNS-II/RCS (Rapid Cycling Synchrotron) will use a dual harmonic system to increase the bunching factor during the injection and the initial acceleration phase. For studying the beam dynamics involved in a dual harmonic RF system, PyORBIT is used as the major simulation code, which is developed at SNS to simulate beam dynamics in accumulation rings and synchrotrons. We modified parts of the code to make it applicable to the beam dynamic in RCS. This paper includes the major code modification of the Dual Harmonic RF system and some benchmark results. The preliminary simulation results of the dual-harmonic system in CSNS-II/RCS simulated by the particle tracking code PyORBIT will also be discussed.  
poster icon Poster THPAB207 [0.354 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB207  
About • paper received ※ 16 May 2021       paper accepted ※ 05 July 2021       issue date ※ 11 August 2021  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)