CERN Accelerating science

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1.
The Real-Time System for Distribution of Clock, Control and Monitoring Commands With Fixed Latency of the LHCb Experiment at CERN / Feo, Mauricio (CERN) ; Alessio, Federico (CERN) ; Durante, Paolo (CERN) ; Granado Cardoso, Luís (CERN) ; Vouters, Guillaume (Annecy, LAPP)
The Large Hadron Collider beauty (LHCb) experiment has gone through a major upgrade for LHC Run 3 at European Organization for Nuclear Research (CERN), scheduled to start in the middle of 2022. The entire readout system of the experiment has been replaced by front-end and back-end electronics that are able to record LHC events at the full LHC bunch crossing rate of 40 MHz. [...]
2023 - 8 p. - Published in : IEEE Trans. Nucl. Sci. 70 (2023) 985-992
In : 23rd IEEE Real Time Conference (RT2022), Online, 1 - 5 Aug 2022, pp.985-992
2.
IT Department Business Continuity and Disaster Recovery Policy / Bell, Tim (CERN) ; Salter, Wayne (CERN)
This document covers the overall approach to Business Continuity in the IT department. It is complemented by the IT Business Continuity Plan and IT Disaster Recovery Procedures which provide the details of how to prepare, respond and recover. [...]
CERN-IT-Report-2023-002.- Geneva : CERN, 2023 - Published in : BC/DR Documents v1.0 as approved by the DHO on 12/10/2023: PDF;
3.
Exploring Radiation-Induced Vulnerabilities in RFICs Through Traditional RF Metrics / Scialdone, Antonio (CERN ; LIRMM, Montpellier ; Montpellier U. ; CNRS, France) ; Ferraro, Rudy (cern) ; Dilillo, Luigi (LIRMM, Montpellier ; Montpellier U. ; CNRS, France) ; Saigne, Frederic (Montpellier U. ; CNRS, France) ; Boch, Jérôme (CNRS, France ; Montpellier U.) ; Masi, Alessandro (CERN) ; Danzeca, Salvatore (CERN)
This article describes how to analyze radiation-induced effects using traditional radio-frequency (RF) metrics in RF integrated circuits (RFICs) to be used in the implementation of software-defined radios (SDRs). The impacts of total ionizing dose (TID) and single-event effects (SEEs) on the device characteristics are shown and their consequences for an SDR are discussed. [...]
2023 - 8 p. - Published in : IEEE Trans. Nucl. Sci.
Fulltext: PDF;
In : European Conference on Radiation and its Effects on Components and Systems, Venice, Italy, 3 - 7 Oct 2022, pp.2068-2075
4.
Exploring the energy frontier with deep inelastic scattering at the LHC / Brüning, Oliver (CERN) ; Klein, Max (U. Liverpool (main)) /LHeC Collaboration ; PERLE Collaboration
A proposal is described for complementing the intense, high energy proton and ion beams of the Large Hadron Collider (LHC) with a novel electron energy recovery linac (ERL) to provide a next generation electron-hadron collider facility of more than 1 TeV center-of-mass energy. This Large Hadron Electron Collider (LHeC) will substantially extend the kinematic range covered by the first ep collider, HERA, and surpass its luminosity by a factor of several hundreds. [...]
2019 - 17 p. - Published in : J. Phys. G 46 (2019) 123001 Fulltext: PDF;
5.
A Low Noise Fault Tolerant Radiation Hardened 2.56 Gbps Clock-Data Recovery Circuit With High Speed Feed Forward Correction in 65 nm CMOS / Biereigel, Stefan (Leuven U.) ; Kulis, Szymon (CERN) ; Leitao, Pedro (CERN) ; Francisco, Rui (CERN) ; Moreira, Paulo (CERN) ; Leroux, Paul (Leuven U.) ; Prinzie, Jeffrey (Leuven U.)
A fault tolerant, radiation hardened Clock and Data Recovery (CDR) architecture is presented for high-energy physics and space applications. The CDR employs a novel soft-error tolerant Voltage Controlled Oscillator (VCO) and includes a high-speed feed-forward path, which stabilizes the CDR by compensating for an additional pole introduced in the VCO in order to harden it against ionizing particles. [...]
2019 - 9 p. - Published in : IEEE Trans. Circuits Theor. 67 (2019) 1438-1446
6.
The Large Hadron-Electron Collider at the HL-LHC / FCC-he Study Group Collaboration
The Large Hadron electron Collider, LHeC, is the means to move deep inelastic physics following HERA to the energy frontier of particle physics as it is being exploited by the HL-LHC. The paper presents a thorough update of the initial LHeC Conceptual Design Report (CDR) published in 2012. [...]
arXiv:2007.14491; CERN-ACC-Note-2020-0002; JLAB-ACP-20-3180.- Geneva : CERN, 2021-12-20 - 364 p. - Published in : J. Phys. G 48 (2021) 110501 Fulltext: arXiv:2007.14491 - PDF; 2007.14491 - PDF; Fulltext from Publisher: PDF; Preprint: PDF; External link: JLab Document Server
7.
A Low Noise Fault Tolerant Radiation Hardened 2.56 Gbps Clock-Data Recovery Circuit with High Speed Feed Forward Correction in 65 nm CMOS / Prinzie, Jeffrey (Leuven U. ; CERN) ; Kulis, Szymon (CERN) ; Leitao, Pedro (CERN) ; Francisco, Rui (CERN) ; Smedt, Valentijn De (Leuven U.) ; Moreira, Paulo (CERN) ; Leroux, Paul (Leuven U. ; CERN)
A fault tolerant, radiation hardened Clock and Data Recovery (CDR) architecture is presented for high-energy physics and space applications. The CDR employs a novel soft-error tolerant Voltage Controlled Oscillator (VCO) and includes a high-speed feed-forward path to stabilize the CDR to compensate for an additional pole in the VCO to harden it against ionizing particles. [...]
2019 - 4 p. - Published in : 10.1109/LASCAS.2019.8667542
In : Latin American Symposium on Circuits and Systems, Armenia, Colombia, 24 - 27 Feb 2019, pp.63-66
8.
Comparative study of two-quadrant DC/DC stage in power supply for superconducting magnets / Coulinge, Emilien (CERN) ; Burnet, Jean-Paul (CERN) ; Pittet, Serge (CERN) ; Dujic, Drazen (Ecole Polytechnique, Lausanne)
To improve the performances of the present European Organization for Nuclear Research (CERN) Large Hadron Collider (LHC), a new family of power supplies for Superconducting Magnets (SCM) is being designed to enhance the operating cycle and recover magnetic-stored energy. Those specific magnets require low-voltage high-current high-precision isolated power supplies. [...]
2018 - 6 p. - Published in : 10.1109/ICIT.2018.8352255
In : 2018 IEEE International Conference on Industrial Technology, Lyon, France, 19 - 22 Feb 2018, pp.652-657
9.
A Dual-Interferometer-Based Angular Measurement System With Absolute Angle Recovery Method / Serrano Gálvez, Pablo (CERN ; Madrid, Polytechnic U.) ; Butcher, Mark (CERN) ; Masi, Alessandro (CERN)
A dual-interferometer-based angular measurement system is proposed and studied, obtaining analytical expressions for the measured distance of each interferometric axis. The nonzero convexity of the characteristic curve during a rotation is proven to be an intrinsic characteristic of the setup. [...]
2019 - 10 p. - Published in : IEEE Trans. Instrum. Meas. 68 (2019) 864-873
10.
The Central Hint and Information Processor system for automation, error detection and recovery in the ATLAS TDAQ Controls framework / Avolio, Giuseppe (European Laboratory for Particle Physics, CERN) /ATLAS Collaboration
The ATLAS experiment at the Large Hadron Collider at CERN relies on a complex and highly distributed Trigger and Data Acquisition (TDAQ) system to gather and select particle collision data obtained at unprecedented energy and rates. The TDAQ Controls system is the component that guarantees the smooth and synchronous operations of all the TDAQ components and provides the means to minimize the downtime of the system caused by run-time failures. [...]
ATL-DAQ-SLIDE-2019-088.- Geneva : CERN, 2019 - 15 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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