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McTeer, S.M.

Paper Title Page
TUPEA028 Beam Stop Design Methodology and Description of a New SNS Beam Stop 1384
 
  • Y. Polsky, P.J. Geoghegan, L.L. Jacobs, S.M. McTeer, M.A. Plum
    ORNL, Oak Ridge, Tennessee
  • W. Lu
    ORNL RAD, Oak Ridge, Tennessee
  
 

The use of a beam stop to ab­sorb full or par­tial beam at var­i­ous points along a par­ti­cle ac­cel­er­a­tor is com­mon­place. The de­sign of ac­cel­er­a­tor com­po­nents such as mag­nets, linacs and beam in­stru­ments tends to be a fair­ly fo­cused and col­lec­tive ef­fort with­in the par­ti­cle ac­cel­er­a­tor com­mu­ni­ty with well es­tab­lished per­for­mance and re­li­a­bil­i­ty cri­te­ria. Beam stop de­sign by con­trast has been rel­a­tive­ly iso­lat­ed and un­con­strained his­tor­i­cal­ly with much more gen­er­al goals. This com­bi­na­tion of con­di­tions has lead to a va­ri­ety of fa­cil­i­ty im­ple­men­ta­tions with vir­tu­al­ly no stan­dard­iza­tion and min­i­mal con­cen­sus on ap­proach to de­vel­op­ment with­in the par­ti­cle ac­cel­er­a­tor com­mu­ni­ty. At the Spal­la­tion Neu­tron Source (SNS), for ex­am­ple, there are four high power beam stops in use, three of which have sig­nif­i­cant­ly dif­fer­ent de­sign so­lu­tions. This paper de­scribes the de­sign of a new off-mo­men­tum beam stop for the SNS. Con­tent will be bal­anced be­tween hard­ware de­scrip­tion, anal­y­ses per­formed and the method­ol­o­gy used dur­ing the de­vel­op­ment ef­fort. Par­tic­u­lar at­ten­tion will be paid to the ap­proach of the de­sign pro­cess with re­spect to fu­ture ef­forts to meet beam stop per­for­mance met­rics.