Author: Sacristan De Frutos, O.
Paper Title Page
THO4AB03 Novel Materials for Collimators at LHC and its Upgrades 438
 
  • A. Bertarelli, F. Carra, A. Dallocchio, M. Garlaschè, L. Gentini, P. Gradassi, M. Guinchard, E. Quaranta, S. Redaelli, A. Rossi, O. Sacristan De Frutos
    CERN, Geneva, Switzerland
  • E. Quaranta
    Politecnico/Milano, Milano, Italy
  
  Funding: The research leading to these results has received funding from the European Commission under the FP7 Research Infrastructures project EuCARD-2, grant agreement no.312453
Col­li­ma­tors for last-gen­er­a­tion par­ti­cle ac­cel­er­a­tors like the LHC, must be de­signed to with­stand the close in­ter­ac­tion with in­tense and en­er­getic par­ti­cle beams, safely op­er­at­ing over an ex­tended range of tem­per­a­tures in harsh en­vi­ron­ments, while min­i­miz­ing the per­turb­ing ef­fects, such as in­sta­bil­i­ties in­duced by RF im­ped­ance, on the cir­cu­lat­ing beam. The choice of ma­te­ri­als for col­li­ma­tor ac­tive com­po­nents is of para­mount im­por­tance to meet these re­quire­ments, which are to be­come even more de­mand­ing with the in­crease of ma­chine per­for­mances ex­pected in fu­ture up­grades, such as the High Lu­mi­nos­ity LHC (HL-LHC). Con­se­quently, a far-reach­ing R&D pro­gram has been launched to de­velop novel ma­te­ri­als with ex­cel­lent ther­mal shock re­sis­tance and high ther­mal and elec­tri­cal con­duc­tiv­ity, re­plac­ing or com­ple­ment­ing ma­te­ri­als used for pre­sent col­li­ma­tors. Molyb­de­num Car­bide - Graphite and Cop­per-Di­a­mond com­pos­ites have been so far iden­ti­fied as the most promis­ing ma­te­ri­als. The man­u­fac­tur­ing meth­ods, prop­er­ties and ap­pli­ca­tion po­ten­tial of these com­pos­ites will be re­viewed along with the ex­per­i­men­tal pro­gram which is to test their vi­a­bil­ity when ex­posed to high in­ten­sity par­ti­cle beams. 		 
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