Author: Samoshkin, A.
Paper Title Page
WEPFI055 Experience on Fabrication and Assembly of the First Clic Two-Beam Module Prototype 2815
 
  • D. Gudkov, S. Lebet, G. Riddone, F. Rossi
    CERN, Geneva, Switzerland
  • A. Samoshkin
    JINR, Dubna, Moscow Region, Russia
  
  The CLIC two-beam mod­ule pro­to­types are in­tended to prove the de­sign of all tech­ni­cal sys­tems under the dif­fer­ent op­er­a­tion modes. Two val­i­da­tion pro­grams are cur­rently under way and they fore­see the con­struc­tion of four pro­to­type mod­ules for me­chan­i­cal tests with­out beam and three pro­to­type mod­ules for tests with RF and beam. The pro­gram with­out beam will show the ca­pa­bil­ity of the tech­ni­cal so­lu­tions pro­posed to ful­fil the strin­gent re­quire­ments on ra­dio-fre­quency, sup­port­ing, pre-align­ment, sta­bi­liza­tion, vac­uum and cool­ing sys­tems. The en­gi­neer­ing de­sign was per­formed with the use of CAD/CAE soft­ware. Ded­i­cated mock-ups of RF struc­tures, with all me­chan­i­cal in­ter­faces and cho­sen tech­ni­cal so­lu­tions, are used for the tests and there­fore re­li­able re­sults are ex­pected. The com­po­nents were fab­ri­cated by ap­ply­ing dif­fer­ent tech­nolo­gies for the part man­u­fac­tur­ing and join­ing. The first full-size pro­to­type mod­ule was as­sem­bled in 2012. This paper is fo­cused on the pro­duc­tion process in­clud­ing the com­par­i­son of sev­eral tech­ni­cal so­lu­tions adopted dur­ing the re­al­iza­tion. The de­scrip­tion of the mod­ule as­sem­bly and qual­ity con­trol mea­sure­ments are also re­called.  
 
WEPFI056 Study of the Thermo-Mechanical Behavior of the CLIC Two-Beam Modules 2818
 
  • F. Rossi, R. Mondello, G. Riddone
    CERN, Geneva, Switzerland
  • D. Gudkov, A. Samoshkin
    JINR, Dubna, Moscow Region, Russia
  • I. Kossyvakis
    National Technical University of Athens, Zografou, Greece
  • K. Österberg
    HIP, University of Helsinki, Finland
  
  The final lu­mi­nos­ity tar­get of the Com­pact LIn­ear Col­lider (CLIC) im­poses a mi­cron-level sta­bil­ity of the two-me­ter repet­i­tive two-beam mod­ules con­sti­tut­ing the main linacs. Two-beam pro­to­type mod­ules have been as­sem­bled to ex­ten­sively study their thermo-me­chan­i­cal be­hav­iour under dif­fer­ent op­er­a­tion modes. The power dis­si­pa­tion oc­cur­ring in the mod­ules will be re­pro­duced and the ef­fi­ciency of the cor­re­spond­ing cool­ing sys­tems val­i­dated. At the same time, the real en­vi­ron­men­tal con­di­tions pre­sent in the CLIC tun­nel will be stud­ied. Air con­di­tion­ing and ven­ti­la­tion sys­tems will be in­stalled in the ded­i­cated lab­o­ra­tory. Air tem­per­a­ture will be var­ied from 20 to 40 °C, while air flow rate will be reg­u­lated up to 0.8 m/s. Dur­ing all ex­per­i­men­tal tests, the align­ment of the RF struc­tures will be mon­i­tored to in­ves­ti­gate the in­flu­ence of power dis­si­pa­tion and air tem­per­a­ture on the over­all thermo-me­chan­i­cal be­hav­iour. This test pro­gram will allow for bet­ter un­der­stand­ing the be­hav­iour of CLIC mod­ules and the re­sults will be prop­a­gated back to both nu­mer­i­cal mod­el­ling and en­gi­neer­ing de­sign.