Author: Martinez Selles, A.    [Martínez Sellés, A.]
Paper Title Page
WEPAB366 Towards the Last Stages of the CERN’s AD-Target Area Consolidation Project and Recommissioning Plans to Resume Operation 3563
 
  • C. Torregrosa, C. Ahdida, A. Bouvard, A. Broche, S. Burger, M.E.J. Butcher, M. Calviani, V. Clerc, A. De Macedo, S. De Man, F.A. Deslande, M. Di Castro, T. Dobers, T. Feniet, R. Ferriere, E. Fornasiere, R. Franqueira Ximenes, T.J. Giles, J.L. Grenard, E. Grenier-Boley, G. Gräwer, M. Guinchard, M.D. Jedrychowski, K. Kershaw, B. Lefort, E. Lopez Sola, J.M. Martin Ruiz, A. Martínez Sellés, G. Matulenaite, C.Y. Mucher, A. Newborough, M. Perez Ornedo, E. Perez-Duenas, A. Perillo-Marcone, L. Ponce, N. Solieri, M.B. Szewczyk, P.A. Thonet, M.A. Timmins, A. Tursun, W. Van den Broucke, F.M. Velotti, C. Vendeuvre, V. Vlachoudis
    CERN, Meyrin, Switzerland
  • J.C. Espadanal
    LIP, Lisboa, Portugal
  
  An­tipro­tons are pro­duced at CERN at the An­tipro­ton De­cel­er­a­tor (AD) Tar­get Area by im­pact­ing 26 GeV/c pro­ton beams onto a fixed tar­get. Fur­ther col­lec­tion, mo­men­tum se­lec­tion, and trans­port of the sec­ondary par­ti­cles - in­clud­ing an­tipro­tons - to­wards the AD ring is re­alised by a 400 kA pulsed mag­netic horn and a set of mag­netic dipoles and quadrupoles. A major con­sol­i­da­tion of the area - in op­er­a­tion since the 80s - has taken place dur­ing the CERN Long Shut­down 2 (2019-2021). Among other ac­tiv­i­ties, such up­grade in­cluded: (i) In­stal­la­tion of a new air-cooled tar­get de­sign and man­u­fac­tur­ing of a new batch of mag­netic horns, in­clud­ing a sur­face puls­ing test-bench for their val­i­da­tion and fine-tun­ing (ii) In­stal­la­tion of a new po­si­tion­ing and main­te­nance sys­tem for the tar­get and horn (iii) Re­fur­bish­ment and de­con­t­a­m­i­na­tion of the Tar­get Area and its equip­ment, (iv) Con­struc­tion of a new sur­face ser­vice build­ing to house new nu­clear ven­ti­la­tion sys­tems. This con­tri­bu­tion pre­sents an overview of such ac­tiv­i­ties and les­son learnt. In ad­di­tion, it pro­vides the lat­est re­sults from re­frac­tory met­als R&D for the an­tipro­ton tar­get and a sum­mary of the recom­mis­sion­ing and op­ti­miza­tion plans.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB366  
About • paper received ※ 18 May 2021       paper accepted ※ 21 June 2021       issue date ※ 01 September 2021  
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WEPAB376 The Inner Triplet String Facility for HL-LHC: Design and Planning 3592
 
  • M.B. Bajko, S. Bertolasi, C. Bertone, S. Blanchard, D. Bozzini, O.S. Brüning, P. Cruikshank, D. De Luca, N. Dos Santos, F. Dragoni, N. Heredia Garcia, A. Herty, A. Kosmicki, S. Le Naour, W. Maan, A. Martínez Sellés, P. Martinez Urios, P. Orlandi, A. Perin, M. Pojer, F. Rodriguez-Mateos, G. Rolando, L. Rossi, H. Thiesen, E. Todesco, E. Vergara Fernandez, D. Wollmann, S. Yammine, J.J. Zawilinski, M. Zerlauth
    CERN, Meyrin, Switzerland
  
  In the frame­work of the HL-LHC pro­ject, full-scale in­te­gra­tion and op­er­a­tional tests of the su­per­con­duct­ing mag­net chain, from the inner triplet quadrupoles up to the first sep­a­ra­tion/re­com­bi­na­tion di­pole, are planned in con­di­tions as sim­i­lar as pos­si­ble to the final set-up in the LHC tun­nel. The IT String in­cludes all of the re­quired sys­tems for op­er­a­tion at nom­i­nal con­di­tions, such as vac­uum, cryo­gen­ics, warm and cold pow­er­ing equip­ment, and pro­tec­tion sys­tems. The IT String is in­tended to be both an as­sem­bly, and an in­te­gra­tion test stand, and a full re­hearsal of the sys­tems work­ing in uni­son. It will, closely re­pro­duc­ing the me­chan­i­cal, elec­tri­cal, and thermo-hy­draulic in­ter­faces of the final in­stal­la­tion, as well as al­low­ing a full re­hearsal of the sys­tems work­ing in uni­son. This paper de­scribes the con­cep­tual de­sign, the test stand’s ref­er­ence con­fig­u­ra­tion, and the main goals. It also sum­ma­rizes the sta­tus of the main ac­tiv­i­ties, in­clud­ing the de­tailed de­sign of the test in­fra­struc­ture, pro­cure­ment of main equip­ment, the base­line in­stal­la­tion sched­ule, and major mile­stones. The first ver­sion of the ex­per­i­men­tal pro­gram and the as­so­ci­ated plan­ning are also pre­sented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB376  
About • paper received ※ 19 May 2021       paper accepted ※ 22 July 2021       issue date ※ 22 August 2021  
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