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Thermal and supply voltage analysis of optimized ring oscillator for pixel detector readout chip
/ Istaitia, Omar (An Najah Natl. U.) ; Bassalat, Ahmed (An Najah Natl. U.) ; Abualrob, Hadil (An Najah Natl. U.) ; Lounis, Abdenour (IJCLab, Orsay) ; Khwaira, Yahya A R (IJCLab, Orsay) ; Slimani-Cherif, Ali (IJCLab, Orsay) ; Cohen-Solal, Maurice (IJCLab, Orsay)
This paper provides a specific study of the upgrade of the ATLAS pixel detector
in preparation for the upgrade of the Large Hadron Collider (LHC). The upgrade to High Luminosity-LHC (HL-LHC) is expected to start after the long shutdown in 2025-2027. [...]
2024 - 7 p.
- Published in : An-Najah University Journal for Research - A 38 (2024) 1-7
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2.
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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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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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5.
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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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6.
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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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7.
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Evaluation of the performance variation of porous air pads on discontinuous surfaces
/ Sanz, C (Cranfield U. ; CERN) ; Morantz, P (Cranfield U. ; Teddington, Natl. Phys. Lab) ; Lunt, A J G (Bath U.) ; Shore, P (Cranfield U. ; Teddington, Natl. Phys. Lab) ; Chérif, A (CERN) ; Schneider, J (Unlisted, DE) ; Mainaud-Durand, H (CERN) ; Steffens, N (Unlisted, DE)
A new high accuracy position measurement system has been developed. It measures the position of a 0.1 mm diameter copper-beryllium wire that informs alignment of energy beams in advanced particle accelerators. [...]
2020 - 7 p.
- Published in : Prec. Eng. 62 (2020) 16-22
Fulltext : PDF;
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8.
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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
Fulltext: PDF;
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9.
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A rotary mount for positioning a stretched wire axis within a coordinate measurement machine
/ Sanz, C (CERN ; Cranfield U.) ; Cherif, A (CERN) ; Mainaud, H (CERN) ; Morel, F (CERN) ; Morantz, P (Cranfield U.) ; Shore, P (Cranfield U.) ; Schneider, J (Unlisted, GE) ; Steffens, N (Unlisted, GE)
The European Organisationfor Nuclear Research(CERN)is studying future colliders for increasing the chances of new discoveries. Among themthere isthe Compact Linear Collider (CLIC). [...]
2016 - 3 p.
- Published in : (2016)
Fulltext: PDF;
In : International Workshop on Accelerator Alignment, Grenoble, France, 3 - 7 Oct 2016
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10.
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Full Scale Proton Beam Impact Testing of new CERN Collimators and Validation of a Numerical Approach for Future Operation
/ Bergeret, M. (CERN) ; Nuiry, F-X (CERN) ; Calviani, M. (CERN) ; Fraser, M.A. (CERN) ; Butcher, M. (CERN) ; Grec, L-M (CERN) ; Gentini, L. (CERN) ; Lechner, A. (CERN) ; Frankl, M. (CERN) ; Rizzoglio, V. (CERN) et al.
New collimators are being produced at CERN in the framework of a large particle accelerator upgrade project to protect beam lines against stray particles. [...]
arXiv:1904.11700.
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2019. - 23 p.
Fulltext
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