Author: Ball, J.A.
Paper Title Page
WEPAB299 Spallation Neutron Source Proton Power Upgrade Low-Level RF Control System Development 3363
 
  • M.T. Crofford, J.A. Ball, J.E. Breeding, M.P. Martinez, J.S. Moss, M. Musrock
    ORNL, Oak Ridge, Tennessee, USA
  • L.R. Doolittle, C. Serrano, V.K. Vytla
    LBNL, Berkeley, California, USA
  • J. Graham, C.K. Roberts, J.W. Sinclair, Z. Sorrell, S. Whaley
    ORNL RAD, Oak Ridge, Tennessee, USA
 
  Funding: * This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract number DE-AC05-00OR22725.
The Pro­ton Power Up­grade (PPU) Pro­ject is ap­proved for the Spal­la­tion Neu­tron Source at Oak Ridge Na­tional Lab­o­ra­tory and will dou­ble the pro­ton beam power ca­pa­bil­ity from 1.4 MW to 2.8 MW with 2 MW beam power avail­able to the first tar­get sta­tion. A sec­ond tar­get sta­tion is planned and will uti­lize the re­main­ing beam power in the fu­ture. The pro­ton power in­crease will be sup­ported with the ad­di­tion of twenty-eight new su­per­con­duct­ing cav­i­ties pow­ered by 700 kW peak power kly­strons to in­crease beam en­ergy while in­creases to the beam cur­rent will be done with a com­bi­na­tion of ex­ist­ing RF mar­gin, and DTL HPRF up­grades. The orig­i­nal low-level RF con­trol sys­tem has proven to be re­li­able over the past 15 years of op­er­a­tions, but ob­so­les­cence is­sues man­date a re­place­ment sys­tem be de­vel­oped for the PPU pro­ject. The re­place­ment sys­tem is re­al­ized in a µTCA.4 plat­form using a com­bi­na­tion of com­mer­cial off-the-shelf boards and cus­tom hard­ware to sup­port the re­quire­ments of PPU. This paper pre­sents the pro­to­type hard­ware, firmware, and soft­ware de­vel­op­ment ac­tiv­i­ties along with pre­lim­i­nary test­ing re­sults of the new sys­tem.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB299  
About • paper received ※ 18 May 2021       paper accepted ※ 21 June 2021       issue date ※ 11 August 2021  
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