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1.
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A Beam Profile Monitor for High Energy Proton Beams Using Microfabrication Techniques
/ Mateu, Isidre (CERN) ; Bouvet, Didier (Ecole Polytechnique, Lausanne) ; Farabolini, Wilfrid (CERN) ; Gilardi, Antonio (CERN) ; Gkotse, Blerina (CERN) ; Mapelli, Alessandro (CERN) ; Meskova, Viktoria (CERN) ; Pezzullo, Giuseppe (CERN) ; Ravotti, Federico (CERN) ; Sallese, Jean-Michel (Ecole Polytechnique, Lausanne) et al.
In High Energy Physics experiments it is a common practice to expose electronic components and systems to particle beams, in order to assess their level of radiation tolerance when operating in a radiation environment. One of the facilities used for such tests is the Proton Irradiation Facility (IRRAD) at CERN. [...]
2020 - 4 p.
- Published in : 10.18429/JACoW-IBIC2020-TUPP37
Fulltext: PDF;
In : 9th International Beam Instrumentation Conference, Online, 14 - 18 Sep 2020, pp.TUPP37
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2.
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3.
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Metal Thin-film Dosimetry Technology for the Ultra-high Particle Fluence Environment of the Future Circular Collider At CERN
/ Gorine, Georgi (CERN, EPFL) ; Pezzullo, Giuseppe (CERN) ; Moll, Michael (CERN) ; Capeans, Mar (CERN) ; Väyrynen, Katja (University of Helsinki) ; Ritala, Mikko (University of Helsinki) ; Bouvet, Didier (EPFL) ; Ravotti, Federico (CERN) ; Sallese, Jean-Michel (EPFL)
The Future Circular Collider (FCC) design study aims to assess the physics potential and technical feasibility of a new synchrotron accelerator expected to reach an energy level of 100 TeV colliding proton beams circulating in a 100 km tunnel located in the Geneva area in Switzerland. Inside the FCC detectors, over the 10 years of scheduled operation, unprecedented radiation levels will presumably exceed several tens of MGy with more than 10^17 particles/cm^2. [...]
AIDA-2020-PUB-2018-013.-
Geneva : CERN, 2018
- Published in : Radiation and Applications Journal 3 (2018) 172-177
Fulltext: PDF;
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4.
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Transient current technique for charged traps detection in silicon bonded interfaces
/ Bronuzzi, J (CERN ; Ecole Polytechnique, Lausanne) ; Bouvet, D. (Ecole Polytechnique, Lausanne) ; Charrier, C. (CEA-DTA-LETI, Grenoble) ; Fournel, F. (CEA-DTA-LETI, Grenoble) ; García, M.F. (CERN ; Cantabria Inst. of Phys.) ; Mapelli, A. (CERN) ; Moll, M. (CERN) ; Rouchouze, E. (CEA-DTA-LETI, Grenoble) ; Sallese, J.M. (Ecole Polytechnique, Lausanne)
Wafer bonding is an established technology for the manufacturing of silicon-on-insulator (SOI) substrates, micro-electromechanical systems (MEMS) and microfluidic devices. Low temperature direct bonding techniques can be of particular interest for the fabrication of monolithic radiation sensors. [...]
2019
- Published in : AIP Adv. 9 (2019) 025307
Fulltext: PDF;
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5.
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Principle of the electrically induced Transient Current Technique
/ Bronuzzi, J (CERN ; Ecole Polytechnique, Lausanne) ; Moll, M (CERN) ; Bouvet, D (Ecole Polytechnique, Lausanne) ; Mapelli, A (CERN) ; Sallese, J M (Ecole Polytechnique, Lausanne)
In the field of detector development for High Energy Physics, the so-called Transient Current Technique (TCT) is used to characterize the electric field profile and the charge trapping inside silicon radiation detectors where particles or photons create electron-hole pairs in the bulk of a semiconductor device, as PiN diodes. In the standard approach, the TCT signal originates from the free carriers generated close to the surface of a silicon detector, by short pulses of light or by alpha particles. [...]
2018 - 17 p.
- Published in : JINST 13 (2018) P05021
Fulltext: pdf - PDF; 10.1088_1748-0221_13_05_P05021 - PDF;
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6.
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Ultra High Fluence Radiation Monitoring Technology for the Future Circular Collider at CERN
/ Gorine, Georgi (CERN, EPFL) ; Pezzullo, Giuseppe (CERN) ; Mandic, Igor (JSI) ; Jazbec, Anže (JSI) ; Snoj, Luka (JSI) ; Capeans, Mar (CERN) ; Moll, Michael (CERN) ; Bouvet, Didier (EPFL) ; Ravotti, Federico (CERN) ; Sallese, Jean-Michel (EPFL)
The future circular collider (FCC) is foreseen as the next-generation ~100-km long synchrotron to be built in the Geneva area starting 2050. This machine is expected to reach an energy level of 100 TeV generating unprecedented radiation levels >100 times higher than in today’s large hadron collider (LHC). [...]
AIDA-2020-PUB-2018-001.-
Geneva : CERN, 2018 - 8 p.
- Published in : IEEE Trans. Nucl. Sci. 65 (2018) 1583-1590
Fulltext: AIDA-2020-PUB-2018-001 - PDF; 08268576 - PDF;
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7.
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Major changes to the LHCb Grid computing model in year 2 of LHC data
/ Arrabito, L (CC, Villeurbanne) ; Bernardoff, V (CERN) ; Bouvet, D (CC, Villeurbanne) ; Cattaneo, M (CERN) ; Charpentier, P (CERN) ; Clarke, P (Edinburgh U.) ; Closier, J (CERN) ; Franchini, P (INFN, Ferrara) ; Graciani, R (Barcelona U.) ; Lanciotti, E (CERN) et al.
The increase of luminosity of the LHC in 2011 also introduced an increase of computing requirements for data processing. This paper describes the data processing operations during 2011 prompt reconstruction as well as the end of year re-processing of the full data sample. [...]
2012 - 8 p.
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012, pp.032092
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8.
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LHCb: The Evolution of the LHCb Grid Computing Model
Reference: Poster-2012-224
Created: 2012. -1 p
Creator(s): Arrabito, L; Bernardoff, V; Bouvet, D; Cattaneo, M; Charpentier, P [...]
The increase of luminosity in the LHC during its second year of operation (2011) was achieved by delivering more protons per bunch and increasing the number of bunches. Taking advantage of these changed conditions, LHCb ran with a higher pileup as well as a much larger charm physics introducing a bigger event size and processing times. These changes led to shortages in the offline distributed data processing resources, an increased need of cpu capacity by a factor 2 for reconstruction, higher storage needs at T1 sites by 70\% and subsequently problems with data throughput for file access from the storage elements. To accommodate these changes the online running conditions and the Computing Model for offline data processing had to be adapted accordingly. This paper describes the changes implemented for the offline data processing on the Grid, relaxing the Monarc model in a first step and going beyond it subsequently. It further describes other operational issues discovered and solved during 2011, present the performance of the system and concludes by lessons learned to further improve the data processing reliability and quality for the 2012 run augmented by first results on the computing performance from 2012.
Related links:
Conference: CHEP 2012
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© CERN Geneva
Access to files
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9.
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Radiation Hardness Study with Small Gap Chambers of 5 and 9 cm Strips.
/ Bouvet, David (IPN Lyon, France) ; Chorowicz, Valérie (IPN Lyon, France) ; Contardo, Didier (IPN Lyon, France) ; Haroutunian, Roger (IPN Lyon, France) ; Mirabito, Laurent (IPN Lyon, France) ; Smadja, Gérard (IPN Lyon, France)
Small Gap Chambers of 5 and 9 cm strips were exposed to a 5 kHz/mm2 pion beam of 300 MeV in the piM1 area at the PSI. We present the discharge rates and the strip failures measured at different voltages [...]
CMS-NOTE-1999-051.-
Geneva : CERN, 1999
Fulltext: PDF PS.Z;
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10.
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Behaviour of Small Gap+gem Chambers in Close LHC Conditions
/ Bouvet, D ; Chorowicz, V ; Contardo, D ; Hartoutunian, R ; Mirabito, L ; Perriès, S ; Smadja, G
LYCEN-2001-98.-
Lyon : CNRS Lyon. Inst. Phys. Nucl., 2002
- Published in : Nucl. Instrum. Methods Phys. Res., A 478 (2002) 267-270
Published version: PDF;
In : 9th International Vienna Conference on Instrumentation, Vienna, Austria, 19 - 23 Feb 2001, pp.267-270
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