Author: Zhang, Y.L.
Paper Title Page
WEPAB199 Study on the Important Technologies of 300MeV Upgrade for the CSNS Injection System 3089
 
  • M.Y. Huang, C.D. Deng, L. Kang, L. Liu, Y. Liu, X. Qi, S. Wang, Q.B. Wu, Y.W. Wu, S.Y. Xu, W.Q. Zhang, Y.L. Zhang
    IHEP, Beijing, People’s Republic of China
  • J.X. Chen, T. Huang, H.C. Liu
    IHEP CSNS, Guangdong Province, People’s Republic of China
 
  Funding: This work was supported by National Natural Science Foundation of China (Project Nos. U1832210 and 12075134).
The China Spal­la­tion Neu­tron Source (CSNS-I) have achieved the de­sign goal of 100kW beam power on the tar­get in Feb., 2020. As the sec­ond phase of the CSNS, CSNS-II will achieve a beam power on the tar­get of 500 kW. The in­jec­tion en­ergy of CSNS-II will be in­creased from 80 MeV to 300 MeV and the av­er­age beam cur­rent of the Linac will in­crease 5 times. There­fore, the in­jec­tion sys­tem will re­quire a com­plete up­grade. In this paper, the de­sign scheme of the in­jec­tion sys­tem for CSNS-II will be in­tro­duced. The key tech­nolo­gies of the up­grade in­jec­tion sys­tem will be care­fully an­a­lyzed and pre-de­vel­oped, such as the pulse power sup­plies and their mag­nets, the spe­cial-shaped ce­ramic vac­uum cham­bers, the main strip­ping foil, the stripped elec­tron col­lec­tion, and so on.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB199  
About • paper received ※ 17 May 2021       paper accepted ※ 09 June 2021       issue date ※ 21 August 2021  
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WEPAB200 Study on the Measurement and Residual Dose of the CSNS Stripping Foil 3093
 
  • M.Y. Huang, L. Kang, S. Wang, Q.B. Wu, S.Y. Xu, Y.L. Zhang
    IHEP, Beijing, People’s Republic of China
  • J.X. Chen, W.L. Huang, H.C. Liu
    IHEP CSNS, Guangdong Province, People’s Republic of China
 
  Funding: This work was supported by National Natural Science Foundation of China (Project Nos. 12075134 and U1832210).
In this paper, firstly, the ap­pli­ca­tion and ser­vice life of the main strip­ping foil for the China Spal­la­tion Neu­tron Source (CSNS) were in­tro­duced. The strip­ping ef­fi­ciency of the main strip­ping foil have been mea­sured and stud­ied. Then, by using the codes FLUKA and ORBIT, the par­ti­cle scat­ter­ing of the main strip­ping foil has been sim­u­lated and the the­o­ret­i­cal resid­ual doses in the in­jec­tion re­gion caused by the foil scat­ter­ing were ob­tained. By weekly mea­sure­ment of the resid­ual doses in the in­jec­tion re­gion, the ac­tual resid­ual doses near the main strip­ping foil were given. The resid­ual doses com­par­i­son re­sults have con­firmed that the par­ti­cle scat­ter­ing of the main strip­ping foil is the most im­por­tant source of the resid­ual doses in the in­jec­tion re­gion.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB200  
About • paper received ※ 09 May 2021       paper accepted ※ 25 August 2021       issue date ※ 23 August 2021  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)