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Progress in the design of the future circular collider FCC-ee interaction region
/ Boscolo, Manuela (Frascati) ; Frasca, Alessandro (CERN) ; Novokhatski, Alexander (SLAC) ; Ciarma, Andrea (Frascati) ; Lechner, Anton (CERN) ; Ilg, Armin (Zurich U.) ; Di Pasquale, Enrico (Frascati) ; Palla, Fabrizio (INFN, Pisa ; CERN) ; Bosi, Filippo (INFN, Pisa) ; Fransesini, Francesco (Frascati) et al.
We report on the latest developments for the FCC-ee interaction region design that represents a major challenge for the collider, which has to achieve extremely high luminosity over a wide range of centre-of-mass energies. The FCC-ee will host four experimental apparatuses. [...]
FERMILAB-CONF-24-0670-PIP2.-
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC67
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC67
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Energy deposition and radiation level studies for the FCC-ee experimental insertions
/ Frasca, Alessandro (CERN ; Liverpool U.) ; Ciarma, Andrea (Frascati) ; Lechner, Anton (CERN) ; Perillo Marcone, Antonio (CERN) ; Humann, Barbara (CERN) ; Järmyr Eriksson, Carl (CERN) ; Welsch, Carsten (Liverpool U.) ; Calzolari, Daniele (CERN) ; Lerner, Giuseppe (CERN) ; Boscolo, Manuela (Frascati) et al.
The Future Circular Collider (FCC) study foresees the construction of a 90.7 km underground ring where, as a first stage, a high-luminosity electron-positron collider (FCC-ee) is envisaged, operating at beam energies from 45.6 GeV (Z pole) to 182.5 GeV (ttbar). In the FCC-ee experimental interaction regions, various physical processes give rise to particle showers that can be detrimental to machine components as well as equipment in the tunnel, such as cables and electronics. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC66
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC66
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Radiation levels in the LHC tunnel and impact on electronics during the 2023 Pb ion run
/ Canesse, Auriane (CERN) ; Ricci, Daniel (CERN) ; Söderström, Daniel (CERN) ; Di Francesca, Diego (CERN) ; Tagkoudi, Eirini (CERN) ; Cerutti, Francesco (CERN) ; Lerner, Giuseppe (CERN) ; Garcia Alia, Ruben (CERN) ; Fiore, Salvatore (CERN) ; Niang, Samuel (CERN)
The 2023 operation of the Large Hadron Collider (LHC) at CERN included a one-month-long run with fully stripped Pb ion beams, marking the first heavy-ion run since 2018, and delivering Pb ion collisions at an unprecedented center-of-mass energy of 5.36 TeV per nucleon pair. During this period, the radiation fields in the LHC tunnel have been measured by means of different radiation monitors, including Beam Loss Monitors (BLMs), RadMons, and distributed optical fiber dosimeters, with the primary goal of quantifying the radiation exposure of electronic systems. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) THPG42
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPG42
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Radiation levels from a beam gas curtain instrument at the LHC at CERN
/ Prelipcean, Daniel (CERN) ; Sequeiro, Cristina (CERN) ; Schneider, Gerhard (CERN) ; Lerner, Giuseppe (CERN) ; Ady, Marton (CERN) ; Sedlacek, Ondrej (CERN) ; Veness, Raymond (CERN) ; Garcia Alia, Ruben (CERN)
A prototype Beam Gas Curtain (BGC) monitor was installed at the Large Hadron Collider (LHC) at CERN to provide 2D images of the transverse beam profile during the ongoing Run 3 (2022 to date) and in view of the High Luminosity LHC upgrade (HL-LHC). By design, the BGC operation generates collisions between the beam particles and an injected gas jet proportionally to the beam intensity and the gas density, possibly causing radiation-induced issues to the downstream LHC equipment. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) THPG58
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPG58
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FLUKA simulations of neutrino-induced effective dose at a Muon Collider
/ Lerner, Giuseppe (CERN) ; Frasca, Alessandro (CERN ; Liverpool U.) ; Lechner, Anton (CERN) ; Carli, Christian (CERN) ; Ahdida, Claudia (CERN) ; Manczak, Jerzy (CERN)
During the operation of a muon collider in an underground tunnel, most circulating muons decay into an electron (or positron) and a neutrino-antineutrino pair, resulting in a narrow disk of high-energy neutrinos emitted radially in the collider plane and emerging on the Earth’s surface at distances of several km. Thus, dedicated studies are required to assess any potential radiation protection risks to the public due to the interaction of such neutrinos near the surface. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPR27
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPR27
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An Analytical Approach to Calculate Soft Error Rate Induced by Atmospheric Neutrons
/ Wrobel, Frédéric (IES, Montpellier) ; Aguiar, Ygor (CERN) ; Marques, Cleiton (IES, Montpellier) ; Lerner, Giuseppe (CERN) ; Alía, Rubén García (CERN) ; Saigné, Frédéric (IES, Montpellier) ; Boch, Jérôme (IES, Montpellier)
In the atmosphere, it is generally understood that neutrons are the main contributor to the soft error rate (SER) in electronic devices. These particles are indeed able to trigger nuclear reactions in the sensitive regions of the devices, leading to secondary ions that may ionize the matter sufficiently to upset a memory cell or induce a transient signal, known as soft errors. [...]
2022 - 12 p.
- Published in : Electronics 12 (2022) 104
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Towards a Timepix3 Radiation Monitor for the Accelerator Mixed Radiation Field: Characterisation with Protons and Alphas from 0.6 MeV to 5.6 MeV
/ Prelipcean, Daniel (CERN ; Munich, Tech. U.) ; Lerner, Giuseppe (CERN) ; Slipukhin, Ivan (CERN ; IES, Montpellier) ; Lucsanyi, David (CERN ; IES, Montpellier) ; Sandberg, Hampus (CERN) ; Storey, James (CERN) ; Martin-Holgado, Pedro (CNA, Seville) ; Romero-Maestre, Amor (CNA, Seville) ; Morilla García, Yolanda (CNA, Seville) ; García Alía, Rubén (CERN)
A Timepix3 detector with a 300 silicon sensor has been studied as a novel radiation monitor for the mixed radiation field at the Large Hadron Collider at CERN. This work describes a test campaign carried out at Centro Nacional de Aceleradores with quasi-mono energetic protons (alphas) from 0.6 (1) to 5 (5.6) MeV, where orthogonal irradiations are used to obtain an energy calibration, and a low-energy angular scan to estimate the front dead layer thickness of the sensor. [...]
2024 - 25 p.
- Published in : Appl. Sciences 14 (2024) 624
Fulltext: PDF;
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LHC Oxygen Run Preparation in the CERN Injector Complex
/ Slupecki, Maciej (CERN) ; Aguglia, Davide (CERN) ; Aguiar, Ygor (Universite Jean Monnet (FR)) ; Alemany Fernandez, Reyes (CERN) ; Argyropoulos, Theodoros (CERN) ; Barlow, Roger Andrew (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Bilko, Kacper (Universite Jean Monnet (FR)) ; Borburgh, Jan (CERN) et al.
The Ion Accelerator Complex, composed of a linear accelerator (Linac3) and a chain of synchrotrons (Low Energy Ion Ring: LEIR, Proton Synchrotron: PS, Super Proton Synchrotron: SPS and the Large Hadron Collider: LHC) will operate oxygen ion beams for Oxygen–Oxygen (O–O) and proton–Oxygen (p–O) collisions in the LHC in Run 3. [...]
CERN-ACC-NOTE-2024-0001.
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2024. - 29 p.
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Energy deposition studies for the Upgrade II of LHCb at the CERN Large Hadron Collider
/ Ciccotelli, Alessia (CERN ; U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Appleby, Robert B. (U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Cerutti, Francesco (CERN) ; Buffet, Kevin (CERN) ; Butin, Francois (CERN) ; Corti, Gloria (CERN) ; Esposito, Luigi Salvatore (CERN) ; Garcia Alia, Ruben (CERN) ; Karacson, Matthias (CERN) ; Lerner, Giuseppe (CERN) et al.
The Upgrade II of the LHCb experiment is proposed to be installed during the CERN Long Shutdown 4, aiming to operate LHCb at 1.5x$10^{34}cm^{-2}s^{-1}$ that is 75 times its design luminosity and reaching an integrated luminosity of about $400 fb^{-1}$ by the end of the High Luminosity LHC era. This increase of the data sample at LHCb is an unprecedented opportunity for heavy flavour physics measurements. [...]
arXiv:2310.08281.-
2024-06-01 - 17 p.
- Published in : Phys. Rev. Accel. Beams 27 (2024) 061003
Fulltext: 2310.08281 - PDF; Publication - PDF;
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