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1.
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Evaluation of Geometrical Precision and Surface Roughness Quality for the Additively Manufactured Radio Frequency Quadrupole Prototype
/ Torims, Toms (Riga Tech. U.) ; Cherif, Ahmed (CERN) ; Delerue, Nicolas (IJCLab, Orsay) ; Foppa Pedretti, Maurizio ; Gruber, Samira (Fraunhofer Inst., Dresden) ; Krogere, Dagnija (Riga Tech. U.) ; Lopez, Elena (Fraunhofer Inst., Dresden) ; Otto, Tauno (Estonian U.) ; Pikurs, Guntis (Riga Tech. U.) ; Pozzi, Mateo et al.
A multidisciplinary collaboration within the I.FAST project teamed-up to develop additive manufacturing (AM) technology solutions for accelerators. The first prototype of an AM pure-copper radio frequency quadrupole (RFQ) has been produced, corresponding to 1/4 of a 4-vane RFQ*. [...]
2022 - 5 p.
- Published in : JACoW IPAC 2022 (2022) 787-791
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.787-791
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2.
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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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New Generation CERN LHC Injection Dump - Assembly and Installation (TDIS)
/ Carbajo Perez, David (CERN) ; Berthomé, Emmanuel (CERN) ; Bertone, Caterina (CERN) ; Biancacci, Nicolo (CERN) ; Bracco, Chiara (CERN) ; Bregliozzi, Giuseppe (CERN) ; Bulat, Bartosz (CERN) ; Cadiou, Cyril (CERN) ; Calviani, Marco (CERN) ; Cattenoz, Gregory (CERN) et al.
During CERN’s LS2, several upgrades were performed to beam intercepting devices in the framework of the HL-LHC Project. Upgraded equipment includes two internal beam dumps (TDIS) intended for machine protection located at the injection points from the SPS to the LHC. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 3548-3551
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3548-3551
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Construction and Installation of the New CERN Proton Synchrotron Internal Beam Dumps
/ Andersen, Kristian G (CERN) ; Calviani, Marco (CERN) ; Cherif, Ahmed (CERN) ; Coiffet, Thibaut (CERN) ; De Macedo, Aurelio (CERN) ; Devidal, Sylvain (CERN) ; Geisser, Jean-Marie (CERN) ; Gilardoni, Simone S (CERN) ; Gillet, Martin (CERN) ; Grenier-Boley, Edouard (CERN) et al.
In the framework of the CERN Large Hadron Collider Injectors Upgrade (LIU) Project, the Proton Synchrotron (PS) has been equipped with two new movable Internal Dumps (PSID), each of them capable of absorbing particle beams of an energy of up to 100 kJ. These dumps replace the old Internal Dumps, which have been operated in the accelerator complex since their installation in 1975 until their decommissioning and removal from the machine during the second LHC Long Shut down (LS2). [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 1409-1412
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1409-1412
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6.
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Micro-scale finishing of the surface and form of a Ti-6Al-4V lightweight rotor obtained by laser powder bed fusion used for air bearing
/ Sanz, Claude (Cranfield U. ; CERN) ; Gerard, Romain (CERN) ; Morantz, Paul (Teddington, Natl. Phys. Lab) ; Chérif, Ahmed (CERN) ; Shore, Paul (Teddington, Natl. Phys. Lab) ; Mainaud-Durand, Hélène (CERN) ; Lunt, Alexander J G (CERN)
The European Organisation for Nuclear Research, CERN, is in the process of designing and testing parts for the next generation of linear accelerators. In order to operate the experiments, the pre-alignment precision of the components of the two opposing accelerating complexes has placed increased demands on part tolerances, which are now approaching the micrometre. [...]
2018 - 7 p.
- Published in : Addit. Manuf. 23 (2018) 287-293
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Form measurement of a 0.1 mm diameter wire with a chromatic confocal sensor, with associated uncertainty evaluation
/ Sanz, Claude (CERN) ; Giusca, Claudiu (Cranfield U.) ; Morantz, Paul (Teddington, Natl. Phys. Lab) ; Marin, Antonio (CERN) ; Chérif, Ahmed (CERN) ; Schneider, Jürgen (Hexagon Metrology, Wetzlar) ; Mainaud-Durand, Hélène (CERN) ; Shore, Paul (Teddington, Natl. Phys. Lab) ; Steffens, Norbert (Hexagon Metrology, Wetzlar)
The accurate characterisation of a copper–beryllium wire with a diameter of 0.1 mm is one of the steps to increase the precision of future accelerators’ pre-alignment. Novelties in measuring the wire properties were found in order to overcome the difficulties brought by its small size. [...]
2018 - 6 p.
- Published in : Meas. Sci. Technol. 29 (2018) 074010
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Main Achievements of the PACMAN Project for the Alignment at Micrometric Scale of Accelerator Components
/ Mainaud Durand, Helene (CERN) ; Artoos, Kurt (CERN) ; Buzio, Marco (CERN) ; Caiazza, Domenico (CERN) ; Catalán Lasheras, Nuria (CERN) ; Cherif, Ahmed (CERN) ; Doytchinov, Iordan (CERN) ; Faus-Golfe, Angeles (Orsay, LAL) ; Fuchs, Jean-Frederic (CERN) ; Gaddi, Andrea (CERN) et al.
The objectives of the PACMAN* project are to improve the precision and accuracy of the alignment of accelerator components. Two steps of alignment are concerned: the fiducialisation, i.e. [...]
CERN-ACC-2017-275; CLIC-Note-1124.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUPIK077
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPIK077
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Status of the PACMAN Project
/ Mainaud Durand, Helene (CERN) ; Artoos, Kurt (CERN) ; Buzio, Marco (CERN) ; Caiazza, Domenico (CERN) ; Catalán Lasheras, Nuria (CERN) ; Cherif, Ahmed (CERN) ; Doytchinov, Iordan (CERN) ; Fuchs, Jean-Frederic (CERN) ; Gaddi, Andrea (CERN) ; Galindo Munoz, Natalia (CERN) et al.
PACMAN, a study on Particle Accelerator Components' Metrology and Alignment to the Nanometre scale, is an Innovative Doctoral Program, funded by the European Commission, hosted by CERN. The objective is to propose new methods allowing the determination of the reference axis of accelerator components with respect to external alignment targets. [...]
2016 - 4 p.
- Published in : 10.18429/JACoW-IBIC2015-TUPB062
Fulltext: PDF;
In : International Beam Instrumentation Conference , Melbourne, Australia, 13 - 17 Sep 2015, pp.TUPB062
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Fiducialisation and initial alignment of CLIC component with micrometric accuracy
/ Mainaud Durand, Helene (CERN) ; Artoos, Kurt (CERN) ; Buzio, Marco (CERN) ; Caiazza, Domenico (CERN) ; Catalan Lasheras, Nuria (CERN) ; Cherif, Ahmed (CERN) ; Doytchinov, Iordan Petrov (CERN) ; Fuchs, Jean-Frederic (CERN) ; Gaddi, Andrea (CERN) ; Galindo Munoz, Natalia (CERN) et al.
We propose a new solution to fiducialise the three major components of the CLIC collider: quadrupoles, beam-position monitors (BPM), and accelerating structures (AS). [...]
CERN-ACC-NOTE-2016-0072.
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2016. - 8 p.
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