Author: Guinchard, M.
Paper Title Page
WEPAB365 CERN BDF Prototype Target Operation, Removal and Autopsy Steps 3559
 
  • R. Franqueira Ximenes, O. Aberle, C. Ahdida, P. Avigni, M. Battistin, L. Bianchi, L.R. Buonocore, S. Burger, J. Busom, M. Calviani, J.P. Canhoto Espadanal, M. Casolino, M. Di Castro, M.A. Fraser, S.S. Gilardoni, S. Girod, J.L. Grenard, D. Grenier, M. Guinchard, R. Jacobsson, M. Lamont, E. Lopez Sola, A. Ortega Rolo, A. Perillo-Marcone, Y. Pira, B. Riffaud, V. Vlachoudis, L. Zuccalli
    CERN, Geneva, Switzerland
  
  The Beam Dump Fa­cil­ity (BDF), cur­rently in the study phase, is a pro­posed gen­eral-pur­pose fixed tar­get fa­cil­ity at CERN. Ini­tially will host the Search for Hid­den Par­ti­cles (SHiP) ex­per­i­ment, in­tended to in­ves­ti­gate the ori­gin of dark mat­ter and other weakly in­ter­act­ing par­ti­cles. The BDF par­ti­cle pro­duc­tion tar­get is lo­cated at the core of the fa­cil­ity and is em­ployed to fully ab­sorb the high in­ten­sity (400 GeV/c) Super Pro­ton Syn­chro­tron (SPS) beam. To val­i­date the de­sign of the pro­duc­tion tar­get, a down­scaled pro­to­type was tested with the beam at CERN in 2018 in the North Area pri­mary area in a ded­i­cated test at 35 kW av­er­age beam power. This con­tri­bu­tion de­tails the BDF pro­to­type tar­get op­er­a­tion, fully re­mote re­moval in­ter­ven­tion, and fore­seen post-ir­ra­di­a­tion ex­am­i­na­tion plans.  
poster icon Poster WEPAB365 [1.691 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB365  
About • paper received ※ 18 May 2021       paper accepted ※ 15 June 2021       issue date ※ 25 August 2021  
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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  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)