Author: Wang, D.
Paper Title Page
TUYAT0104 CEPC Booster Lattice Design 61
 
  • D. Wang, X. Cui, J. Gao, D. Ji, M. Li, Y.D. Liu, C. Meng, Y.M. Peng, C.H. Yu, J.Y. Zhai, Y. Zhang
    IHEP, Beijing, People’s Republic of China
  
  The CEPC booster provides electron and positron beams to the collider at different energies. The newest booster design is consistent with the TDR higher luminosity goals for four energy modes. The emittance of booster is reduced significantly in order to match the lower emittance of collider in TDR. Both FODO structure and TME structure was studied for booster design. A lot of efforts are made to overcome the difficulty of error sensitivity for the booster and hence the dynamic aperture with errors can fulfill the requirements at all energy modes. Also, the combined magnets scheme (B+S) are proposed to minimize the cost for magnets and power supplies. The design status of CEPC booster in TDR including parameters, optics and dynamic aperture is discussed in this paper.  
slides icon Slides TUYAT0104 [10.620 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-eeFACT2022-TUYAT0104  
About • Received ※ 03 November 2022 — Revised ※ 02 February 2023 — Accepted ※ 08 February 2023 — Issue date ※ 17 February 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
TUZAS0101 Longitudinally Polarized Colliding Beams at the CEPC 97
 
  • Z. Duan, T. Chen, J. Gao, D. Ji, X.P. Li, D. Wang, J.Q. Wang, J.Q. Wang, Y. Wang, W.H. Xia
    IHEP, Beijing, People’s Republic of China
  
  Funding: NSFC Grant No. 11975252; National Key Program for S&T R&D Grant No. 2016YFA0400400 and 2018YFA0404300; Key Research Program of Frontier Sciences, CAS Grant No. QYZDJ-SSW-SLH004; YIPA CAS No. 2021012.
This paper reports the recent progress in the design studies of longitudinally polarized colliding beams for CEPC. The overall design concept is outlined, followed by more detailed descriptions of the polarized beam generation, polarization maintenance in the booster, and spin rotators in the collider rings. 		 
slides icon Slides TUZAS0101 [7.310 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-eeFACT2022-TUZAS0101  
About • Received ※ 30 November 2022 — Revised ※ 06 February 2023 — Accepted ※ 08 February 2023 — Issue date ※ 15 February 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THXAT0102 Issues Related to CEPC e+/e− Injection 222
 
  • C. Meng, J. Gao, X.P. Li, G. Pei, D. Wang, J.R. Zhang
    IHEP, Beijing, People’s Republic of China
  
  Circular Electron-Positron Collider (CEPC) is a 100 km ring collider as a Higgs factory. It consists of a double ring collider, a full energy booster, a Linac and several transport lines. The Linac is a normal conducting S-band and C-band linear accelerator and provide electron and positron beam at an energy up to 30 GeV with repetition frequency of 100 Hz. After a conventional positron source, there is a 1.1 GeV damping ring to reduce the emittance of positron beam. C-band accelerating structures are adopted to accelerate electron and positron beam from 1.1 GeV to 30 GeV. For Z mode, in order to obtain higher injection speed, the Linac operates in double-bunch acceleration mode. The physics design and dynamic simulation results of the Linac will be detailed present-ed in this paper.  
slides icon Slides THXAT0102 [9.082 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-eeFACT2022-THXAT0102  
About • Received ※ 30 November 2022 — Revised ※ 03 February 2023 — Accepted ※ 07 February 2023 — Issue date ※ 12 February 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)