Keyword: civil-engineering
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MOPOST005 The HL-LHC Project Gets Ready for Its Deployment operation, cavity, luminosity, collimation 50
 
  • M. Zerlauth, O.S. Brüning, B. Di Girolamo, P. Fessia, C. Gaignant, H. Garcia Gavela, E.H. Maclean, M. Modena, Th. Otto, L.J. Tavian, G. Vandoni
    CERN, Meyrin, Switzerland
  
  Fol­low­ing the suc­cess­ful com­ple­tion of the sec­ond long shut­down (LS2), the Large Hadron Col­lider (LHC) is prepar­ing for its final op­er­a­tional run be­fore the ma­jor­ity of the High Lu­mi­nos­ity Up­grade (HL-LHC) will be in­stalled dur­ing the third Long Shut­down start­ing in 2026. The HL-LHC up­grade will en­able a fur­ther ten­fold in­crease in in­te­grated lu­mi­nos­ity de­liv­ered to the ATLAS and CMS ex­per­i­ments, start­ing by an up­grade of the ma­chine pro­tec­tion, col­li­ma­tion and shield­ing sys­tems in LS2, and fol­lowed by the de­ploy­ment of novel key tech­nolo­gies, in­clud­ing Nb3Sn based in­ser­tion re­gion mag­nets, cold pow­er­ing by MgB2 su­per­con­duct­ing links and in­te­gra­tion of Nb crab-cav­i­ties to com­pen­sate the ef­fects of a larger cross­ing angle. After a pe­riod of in­ten­sive R&D and pro­to­typ­ing, the pro­ject is now en­ter­ing the phase of in­dus­tri­al­iza­tion and se­ries pro­duc­tion for all main com­po­nents. In this con­tri­bu­tion, we pro­vide an overview of the pro­ject sta­tus and plans for de­ploy­ment and per­for­mance ramp-up. Progress on the val­i­da­tion of key tech­nolo­gies, sta­tus of pro­to­types and se­ries pro­duc­tion as well as the final in­te­gra­tion stud­ies for the HL equip­ment are sum­ma­rized. These are ac­com­pa­nied by the im­mi­nent com­ple­tion of major civil en­gi­neer­ing work and the start of in­fra­struc­ture in­stal­la­tions. Ini­tial op­er­a­tional ex­pe­ri­ence will be gained at the Inner Triplet (IT) String, presently in as­sem­bly at CERN’s Su­per­con­duct­ing Mag­net Test Fa­cil­ity, which will en­able a fully in­te­grated test of the main mag­nets, pow­er­ing, and pro­tec­tion sys­tems in the ac­tual HL-LHC in­ser­tion con­fig­u­ra­tion.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2022-MOPOST005  
About • Received ※ 08 June 2022 — Revised ※ 09 June 2022 — Accepted ※ 16 June 2022 — Issue date ※ 18 June 2022
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