Author: Lima, A.P.B.
Paper Title Page
TUPAB358 Novel 500 MHz Solid State Power Amplifier Module Development at Sirius 2349
 
  • M.H. Wallner, R.H. Farias, A.P.B. Lima, F. Santiago de Oliveira
    LNLS, Campinas, Brazil
  
  A new solid state power am­pli­fier (SSPA) mod­ule is being de­vel­oped at the Brazil­ian Cen­ter for Re­search in En­ergy and Ma­te­ri­als (CNPEM) to drive one of the su­per­con­duct­ing RF cav­i­ties to be in­stalled at Sir­ius, its new 3 GeV fourth gen­er­a­tion syn­chro­tron light source. Sev­eral pro­to­types have been built and tested in-house, and a pla­nar balun was de­signed to achieve a push-pull con­fig­u­ra­tion at deep class AB op­er­a­tion. Ef­forts to op­ti­mize heat ex­change in var­i­ous ways have been made. Re­sults ob­tained thus far are pre­sented and the next steps con­cern­ing de­vel­op­ment are dis­cussed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB358  
About • paper received ※ 19 May 2021       paper accepted ※ 18 June 2021       issue date ※ 19 August 2021  
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THPAB347 Status of Sirius Storage Ring RF System 4470
 
  • A.P.B. Lima, D. Daminelli, R.H.A. Farias, F.K.G. Hoshino, F.S. Oliveira, R.R.C. Santos, M.H. Wallner
    LNLS, Campinas, Brazil
  
  The de­sign con­fig­u­ra­tion of the Sir­ius Light Source RF Sys­tem is based on two su­per­con­duct­ing RF cav­i­ties and eight 60 kW solid state am­pli­fiers op­er­at­ing at 500 MHz. The cur­rent con­fig­u­ra­tion, based on a 7-cell room tem­per­a­ture cav­ity, was ini­tially planned for com­mis­sion­ing and ini­tial tests of the beam­lines. How­ever, it will have to re­main in op­er­a­tion longer than planned. Sir­ius has been op­er­at­ing in decay mode for beam­line tests with an ini­tial cur­rent of 70 mA. We pre­sent an overview of the first-year op­er­a­tion of the RF sys­tem and the prepa­ra­tions for the in­stal­la­tion of the two su­per­con­duct­ing cav­i­ties, which is ex­pected to take place in 2023.  
poster icon Poster THPAB347 [1.322 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB347  
About • paper received ※ 16 May 2021       paper accepted ※ 23 July 2021       issue date ※ 26 August 2021  
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