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Challenges of Target and Irradiation Diagnostics of the IFMIF-DONES Facility
/ Torregrosa, Claudio (Granada U.) ; Arbeiter, Frederik (KIT, Karlsruhe) ; Becerril-Jarque, Santiago ; Brenneis, Bjoern (KIT, Karlsruhe) ; Buligins, Leonids (Salaspils, Nucl. Res. Ctr.) ; Castellanos, Jesus (Castilla-La Mancha U.) ; Chauvin, Nicolas (IRFU, Saclay) ; Fiore, Salvatore (CERN) ; Ibarra, Angel ; Jimenez-Rey, David (Madrid, CIEMAT) et al.
IFMIF-DONES will be a first-class scientific infrastructure consisting of an accelerator-driven neutron source delivering 1e17 n/s with a broad peak at 14 MeV. Such neutron flux will be created by impinging a continuous wave 125 mA, 40 MeV, 5 MW deuteron beam onto a liquid Li jet target, circulating at 15 m/s. [...]
2024 - 5 p.
- Published in : JACoW HB 2023 (2024) WEC1C2
Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.WEC1C2
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Latest Advances in Targetry Systems at CERN and Exciting Avenues for Future Endeavours
/ Franqueira Ximenes, Rui (CERN) ; Aberle, Oliver (CERN) ; Calviani, Marco (CERN) ; Esposito, Raffaele (CERN) ; Grenard, Jean-Louis (CERN) ; Griesemer, Tina (CERN) ; Romero Francia, Alvaro (CERN) ; Torregrosa, Claudio (CERN)
CERN’s accelerator complex offers diverse target systems for a range of scientific pursuits, including varying beam energies, intensities, pulse lengths, and objectives. Future high-intensity fixed target experiments aim to advance this field further. [...]
2024 - 4 p.
- Published in : JACoW HB 2023 (2024) 599-602
Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.599-602
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3.
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Irradiation of Low-Z Carbon-Based Materials with 440 GeV/c Proton Beam for High Energy & Intensity Beam Absorbers: The CERN HiRadMat-56-HED Experiment
/ Andreu Muñoz, Pablo (CERN) ; Calviani, Marco (CERN) ; Charitonidis, Nikolaos (CERN) ; Cherif, Ahmed (CERN) ; Farina, Edoardo (CERN) ; Krainer, Alexander (CERN) ; Lechner, Anton (CERN) ; Maestre, Jorge (CERN) ; Nuiry, Francois-Xavier (CERN) ; Seidenbinder, Regis (CERN) et al.
The beam stored energy and the peak intensity of CERN Large Hadron Collider (LHC) will grow in the next few years. The former will increase from the 320 MJ values of Run2 (2015-2018) to almost 540 MJ during Run3 (2022 onwards) and 680 MJ during the HL-LHC era putting stringent requirements on beam intercepting devices, such as absorbers and dumps. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2883-2886
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2883-2886
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4.
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CERN Linac4 Chopper Dump: Operational Experience and Future Upgrades
/ Sharp, Calum (CERN) ; Andreu Muñoz, Pablo (CERN) ; Calviani, Marco (CERN) ; Costa, Gabriele (CERN) ; Esposito, Luigi Salvatore (CERN) ; Franqueira Ximenes, Rui (CERN) ; Grenier, Damien (CERN) ; Grenier-Boley, Edouard (CERN) ; Hunt, James (CERN) ; Krainer, Alexander (CERN) et al.
The Chopper Dump in the Linac4 accelerator at CERN is a beam-intercepting device responsible for the absorption of the 3 MeV H⁻ ion beam produced by the Linac4 source and deflected upstream by an electromagnetic chopper. It allows a portion of the beam, which would otherwise fall into the unstable region of the radiofrequency buckets in the Proton Synchrotron Booster, to be dumped at low energy with minimal induced radiation. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1370-1373
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1370-1373
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Sigraflex® Studies for LHC CERN Beam Dump: Summary and Perspective
/ Heredia, Jorge (CERN) ; Alvaro, Antonio (SINTEF, Oslo) ; Berto, Filippo (Norwegian U. Sci. Tech.) ; Calviani, Marco (CERN) ; Franqueira Ximenes, Rui (CERN) ; Grenier, Damien (CERN) ; Kershaw, Keith (CERN) ; Lechner, Anton (CERN) ; Andreu-Muñoz, Pablo Andreu (CERN) ; Nuiry, Francois-Xavier (CERN) et al.
The Large Hadron Collider (LHC) beam dump (TDE) is essential for safe and reliable operation of the collider. It absorbs particles extracted from the accelerator whenever required. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 3571-3574
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3571-3574
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Towards the Last Stages of the CERN’s AD-Target Area Consolidation Project and Recommissioning Plans to Resume Operation
/ 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) et al.
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. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 3563-3566
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3563-3566
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7.
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Tungsten Alloy Development as Advanced Target Material for High-Power Proton Accelerator
/ Makimura, Shunsuke (KEK, Tsukuba ; J-PARC) ; Kurishita, Hiroaki (KEK, Tsukuba ; J-PARC) ; Niikura, Koichi (Kinzoku Giken, Ebina) ; Jung, Hun-Chea (Kinzoku Giken, Ebina) ; Onoi, Masahiro (Kinzoku Giken, Ebina) ; Nagasawa, Yutaka (Kinzoku Giken, Ebina) ; Ishida, Taku (KEK, Tsukuba ; J-PARC) ; Calviani, Marco (CERN) ; Torregrosa, Claudio (CERN) ; Descarrega, Josep B (CERN)
/RaDIATE Collaboration
Tungsten (W) is a principal candidate as target material because of its high density and extremely high melting point. W inherently has a critical disadvantage of its brittleness at around room temperature (low temperature brittleness), recrystallization embrittlement, and irradiation embrittlement. [...]
2020 - 5 p.
- Published in : JPS Conf. Proc.: 28 (2020) , no. 031002
Fulltext: PDF;
In : 14th International Workshop on Spallation Materials Technology, Fukushima, Japan, 11 - 17 Nov 2018
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PRACTICAL CHALLENGES OF THE LHC MAIN BEAM DUMP UPGRADES
/ Martin Ruiz, Jose Maria (CERN) ; Kershaw, Keith (CERN) ; Calviani, Marco (CERN) ; Grenier, Damien (CERN) ; Maestre Heredia, Jorge ; Torregrosa Martin, Claudio Leopoldo (Universidad de Oviedo (ES)) ; Buonocore, Luca Rosario (CERN) ; Serrano Galvez, Pablo ; Matheson, Eloise (CERN) ; Sola Merino, Jorge et al.
The two Large Hadron Collider (LHC) beam dumps have to withstand arduous operating conditions and are essential for the safe and reliable operation of the collider. [...]
CERN-ACC-NOTE-2021-0027.
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2021. - 8 p.
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First observation of spalling in tantalum at high temperatures induced by high energy proton beam impacts
/ Torregrosa Martin, Claudio (CERN) ; Solieri, Nicola (CERN) ; Fornasiere, Elvis (CERN ; Ecole Polytechnique, Lausanne) ; Busom Descarrega, Josep (CERN) ; Calviani, Marco (CERN) ; Canhoto Espadanal, Joao (CERN) ; Perillo-Marcone, Antonio (CERN) ; Spätig, Philippe (Ecole Polytechnique, Lausanne ; PSI, Villigen)
Spalling in tantalum has been observed in an experiment aiming at testing an antiproton production target prototype at CERN’s HiRadMat Facility. The experiment consisted in impacting 47 intense and high-energy proton beams onto a target equipped with ten cylindrical cores made of tantalum of Ø8 mm by 16 mm. [...]
2021 - 16 p.
- Published in : European Journal of Mechanics - A/Solids 85 (2021) 104149
Fulltext: PDF;
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Development and Beam Irradiation of Ir/W/Ta/Ta-Alloys Refractory Metals and Cladding Via Hot Isostatic Pressing at CERN for Beam Intercepting Devices Applications
/ Busom Descarrega, Josep (CERN) ; Torregrosa, Claudio (CERN) ; Calviani, Marco (CERN)
The current contribution details the research and development activities associated to refractory metals such as iridium, tungsten, tantalum and tantalum-tungsten alloys executed at CERN in the framework of the development of beam intercepting devices, including beam irradiation tests both at the HiRadMat Facility as well as in the North Area Target Complex..
2020 - 9 p.
- Published in : JPS Conf. Proc. 28 (2020) 041002
Fulltext: PDF;
In : 14th International Workshop on Spallation Materials Technology, Fukushima, Japan, 11 - 17 Nov 2018, pp.041002
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