Keyword: beam-cooling
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WEPAB272 Field-Off Multiple Coulomb Scattering in the MICE Liquid Hydrogen Absorber experiment, scattering, emittance, radiation 3277
 
  • G.T. Chatzitheodoridis
    USTRAT/SUPA, Glasgow, United Kingdom
  
  It is an­tic­i­pated that high bright­ness muon beams will be used pri­mar­ily in two types of ac­cel­er­a­tors, a muon col­lider and a neu­trino fac­tory. The pri­mary chal­lenge posed by using muons as the work­ing par­ti­cle of an ac­cel­er­a­tor physics sys­tem, and the rea­son it has not been used ex­ten­sively in mod­ern par­ti­cle physics ex­per­i­ments, is its short life-time (2.2μsec­onds at rest) and the rel­a­tively long cool­ing pe­ri­ods re­quired by cur­rent cool­ing tech­niques. The Muon Ion­iza­tion Cool­ing Ex­per­i­ment (MICE), is a multi-na­tional ac­cel­er­a­tor physics ini­tia­tive which has demon­strated Ion­iza­tion Cool­ing (IC); a new, rapid beam-cool­ing tech­nique suit­able for the short-lived muon. The per­for­mance of IC de­pends on two key processes - en­ergy loss due to col­li­sional ion­iza­tion, and Mul­ti­ple Coulomb Scat­ter­ing (MCS) - for which ac­cu­rate mod­els are cru­cial in pa­ram­e­triz­ing the method and en­abling quan­ti­ta­tive de­sign of fu­ture muon ac­cel­er­a­tors. Ex­per­i­men­tal mea­sure­ments of MCS of pos­i­tive straight-track muons with mo­menta in the range 170-240 MeV/c in liq­uid H2 are re­ported in this study.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB272  
About • paper received ※ 19 May 2021       paper accepted ※ 19 July 2021       issue date ※ 31 August 2021  
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