Author: Dey, M.K.
Paper Title Page
TU2I2 Development and Commissioning of the K500 Superconducting Heavy Ion Cyclotron 46
 
  • S. Som, A. Bandyopadhyay, S. Bandyopadhyay, S. Bhattacharya, P. Bhattacharyya, T. Bhattacharyya, U. Bhunia, N. Chaddha, J. Debnath, M.K. Dey, A. Dutta Gupta, S. Ghosh, A. Mandal, P.Y. Nabhiraj, C. Nandi, Z.A. Naser, S. Pal, S. Pal, U. Panda, J. Pradhan, A. Roy, S. Saha, S. Seth, S.K. Thakur
    VECC, Kolkata, India
 
  Funding: Work supported by the DAE, Government of India.
The K500 Su­per­con­duct­ing Cy­clotron (SCC) has been de­vel­oped in­dige­nously and com­mis­sioned at VECC. The three-phase Ra­dio-Fre­quency (RF) sys­tem of SCC, con­sists of three half-wave cav­i­ties placed ver­ti­cally 120 deg. apart. Each half-wave cav­ity has two quar­ter-wave cylin­dri­cal cav­i­ties tied to­gether at the cen­tre and sym­met­ri­cally placed about me­dian plane of the cy­clotron. Each quar­ter-wave cav­ity is made up of a short cir­cuited non-uni­form coax­ial trans­mis­sion line (called "dee-stem") ter­mi­nated by ac­cel­er­at­ing elec­trode (called "Dee"). The SCC, op­er­at­ing in the range 9 to 27 MHz, has am­pli­tude and phase sta­bil­ity within 100 ppm and 0.1 deg. re­spec­tively. The overview of all the sub­sys­tems of the cy­clotron along with low-level RF (LLRF), high and low power RF am­pli­fiers, cav­ity analy­sis, ab­solute Dee volt­age mea­sure­ment using X-ray method, am­pli­tude and phase con­trol loops will be pre­sented in the talk. The com­mis­sion­ing of the cy­clotron with first har­monic Ni­tro­gen4+ beam ex­tracted at 252 MeV, while op­er­at­ing at 14 MHz RF fre­quency, along with the cor­rec­tion of first har­monic mag­netic field error by repo­si­tion­ing the cryo­stat within 120 mi­cron ac­cu­racy, will be dis­cussed briefly.
 
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2022-TU2I2  
About • Received ※ 15 June 2022 — Revised ※ 27 June 2022 — Accepted ※ 10 August 2022 — Issue date ※ 05 September 2022
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