CERN Accelerating science

Article
Title	Towards the Last Stages of the CERN’s AD-Target Area Consolidation Project and Recommissioning Plans to Resume Operation
Related title	TOWARDS THE LAST STAGES OF THE CERN’S AD-TARGET AREA CONSOLIDATION PROJECT AND RECOMMISSIONING PLANS TO RESUME OPERATION
Author(s)	Torregrosa, Claudio (CERN) ; Ahdida, Claudia (CERN) ; Bouvard, Aymeric (CERN) ; Broche, Alexandre (CERN) ; Burger, Stephane (CERN) ; Butcher, Mark (CERN) ; Calviani, Marco (CERN) ; Clerc, Vincent (CERN) ; De Macedo, Aurelio (CERN) ; De Man, Sven (CERN) ; Deslande, Frederic (CERN) ; Di Castro, Mario (CERN) ; Dobers, Tobias (CERN) ; Espadanal, Joao (CERN) ; Feniet, Thierry (CERN) ; Ferriere, Romain (CERN) ; Fornasiere, Elvis (CERN) ; Franqueira Ximenes, Rui (CERN) ; Giles, Timothy (CERN) ; Grenard, Jean-Louis (CERN) ; Grenier-Boley, Edouard (CERN) ; Gräwer, Gregor (CERN) ; Guinchard, Michael (CERN) ; Jedrychowski, Mariusz Dawid (CERN) ; Kershaw, Keith (CERN) ; Lefort, Bertrand (CERN) ; Lopez Sola, Edmundo (CERN) ; Martin Ruiz, Jose Maria (CERN) ; Martínez Sellés, Alejandro (CERN) ; Matulenaite, Gabija (CERN) ; Mucher, Christophe (CERN) ; Newborough, Antony (CERN) ; Perez Ornedo, Maria (CERN) ; Perez-Duenas, Eliseo (CERN) ; Perillo-Marcone, Antonio (CERN) ; Ponce, Laurette (CERN) ; Solieri, Nicola (CERN) ; Szewczyk, Marcin Bartosz (CERN) ; Thonet, Pierre-Alexandre (CERN) ; Timmins, Marc (CERN) ; Tursun, Alparslan (CERN) ; Van den Broucke, Willy (CERN) ; Velotti, Francesco (CERN) ; Vendeuvre, Camille (CERN) ; Vlachoudis, Vasilis (CERN)
Publication	Geneva : JACoW, 2021
Number of pages	4
In:	JACoW IPAC 2021 (2021) 3563-3566
In:	12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3563-3566
DOI	10.18429/JACoW-IPAC2021-WEPAB366 (publication)
Subject category	Accelerators and Storage Rings
Abstract	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.
Copyright/License	publication: © 2021 (License: CC-BY-3.0)

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