Author: Wang, Y.
Paper Title Page
THPPP052 Design and Development of Coated Chamber for In-Air Insertion Devices 352
 
  • P.C. Wang, Y. Wang
    USTC/NSRL, Hefei, Anhui, People’s Republic of China
  • H. Dong, Y.S. Ma, Y.G. Wang, L. Zhang
    IHEP, Beijing, People’s Republic of China
  • J.M. Liu, S.M. Liu, X.Y. Sun
    DNSC, Dongguan, People’s Republic of China
  • B. Tan
    Institute of High Energy Physics, CAS, Guangdong, People’s Republic of China
  • B.L. Zhu
    IHEP CSNS, Guangdong Province, People’s Republic of China
  
  The in­ser­tion de­vices ¿ID¿is an im­por­tant guar­an­tee for fur­ther im­prov­ing the per­for­mance of the light source to meet the needs of dif­fer­ent users. For in-air ID (un­du­la­tor, wig­gler, etc.), the mag­netic struc­ture is in the air, and the vac­uum cham­ber is in the mid­dle of the mag­netic struc­ture to en­sure the nor­mal op­er­a­tion of the beam. In order to in­crease the mag­netic field strength, the mag­netic gap is gen­er­ally rel­a­tively small. Fac­tors such as small set­ting space, high pre­ci­sion, and low con­duc­tance all pose chal­lenges to the de­sign and pro­cess­ing of vac­uum cham­ber. This paper in­tro­duces the de­vel­op­ment process of the vac­uum cham­ber pro­to­type of the coat­ing type ID for the China ’s first dif­frac­tion-lim­ited light source HEPS. The si­mul­ta­ne­ous analy­sis and vac­uum pres­sure dis­tri­b­u­tion cal­cu­la­tion of the ID are car­ried out, and the NEG coat­ing scheme is pro­posed as an more eco­nom­i­cal means to ob­tain ul­tra-high vac­uum. The pro­to­type NEG coat­ing progress is in­tro­duced.  
DOI • reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-THPPP052  
About • Received ※ 02 November 2023 — Revised ※ 10 November 2023 — Accepted ※ 12 November 2023 — Issued ※ 18 July 2024
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