Author: Yin, Z.G.
Paper Title Page
WEPFI026 Design and Commissioning of the RF System of CYCIAE 14 Cyclotron 2759
 
  • Z.G. Yin, B. Ji, Y. Lei, P.Z. Li, G.F. Song, C. Wang, T.J. Zhang, Z.L. Zhao
    CIAE, Beijing, People's Republic of China
  
  The RF sys­tem of CY­CIAE-14 con­sists of a set of 20kW am­pli­fier, two 1/4λ RF cav­i­ties con­nected in cen­tral re­gion, the trans­mis­sion line and a set of LLRF sys­tem. The LLRF sys­tem, based on DDS and DSP, has achieved the close-loop ad­just­ment of ac­cel­er­at­ing volt­age and the res­o­nant fre­quency. The RF sys­tem de­sign for CY­CIAE-14 was started in 2010, and the fab­ri­ca­tion of the major equip­ments was fin­ished in 2011. The in­stal­la­tion and com­mis­sion­ing was com­pleted in early 2012, sat­is­fy­ing the de­sign re­quire­ments. This ar­ti­cle de­scribes the de­sign of the RF sys­tem, and sum­ma­rizes the dif­fi­cul­ties en­coun­tered in the process of man­u­fac­ture, in­stal­la­tion and com­mis­sion­ing. Some of the prob­lems caused by the trans­mis­sion line and the RF leak­age are an­a­lyzed, fol­lowed by the mea­sures taken to solve these prob­lems.  
 
THPFI018 The Design and Construction of Stripping Probe System for CYCIAE-100 3333
 
  • Shizhong. An, F.P. Guan, P.Z. Li, L.P. Wen, H.D. Xie, Z.G. Yin, T.J. Zhang
    CIAE, Beijing, People's Republic of China
  
  A 100 MeV H− com­pact cy­clotron is being con­structed in China In­sti­tute of Atomic En­ergy (CY­CIAE-100). 75 MeV - 100 MeV pro­ton beams with 200 μA beam in­ten­sity will be ex­tracted in dual op­po­site di­rec­tions by charge ex­change strip­ping de­vices. Two strip­ping probes with car­bon foils are in­serted ra­di­ally in the op­po­site di­rec­tion from the main mag­net pole and the ob­tained two pro­ton beams after strip­ping foil are trans­ported into the cross­ing point in a com­bi­na­tion mag­net cen­ter sep­a­rately under the fixed main mag­netic field. Be­cause of the large en­ergy range of the ex­tracted beam, the strip­ping probe sys­tem is the most crit­i­cal and com­pli­cated de­vice in the dual ex­trac­tion. In order to save the foil chang­ing time, the struc­ture of the foil chang­ing sys­tem in the vac­uum is adopted. The foil au­to­matic chang­ing ma­chine is out­side the mag­net­ism yoke and 12 pieces foil can be changed in one time. The de­sign and fab­ri­ca­tion of the probe sys­tem has been fin­ished and it is going to the progress of in­stal­la­tion and ad­just­ing. The ex­per­i­men­tal ver­i­fi­ca­tion on probe rod dri­ving and foil chang­ing sys­tem has been fin­ished in 2010. The whole strip­ping ex­trac­tion sys­tem will be in­stalled in 2013.