CERN Accelerating science

CERN Document Server 13 записей найдено  1 - 10следующий  перейти к записи: Поиск длился 0.75 секунд. 
1.
Power Deposition in Superconducting Dispersion Suppressor Magnets Downstream of the Betatron Cleaning Insertion for HL-LHC / Waets, Andreas (CERN) ; Bahamonde Castro, Cristina (CERN) ; Belli, Eleonora (CERN) ; Bruce, Roderik (CERN) ; Fuster-Martínez, Nuria (CERN) ; Lechner, Anton (CERN) ; Mereghetti, Alessio (CERN) ; Redaelli, Stefano (CERN) ; Sabaté-Gilarte, Marta (CERN) ; Skordis, Eleftherios (CERN)
The power deposited in dispersion suppressor magnets downstream of the Large Hadron Collider (LHC) betatron cleaning insertion is governed by off-momentum particles scattered out of the primary collimators. In order to mitigate the risk of magnet quenches during periods of short beam lifetime in future High-Luminosity (HL-LHC) operation, new dispersion suppressor (DS) collimators are considered for installation (one per beam). [...]
2021 - 4 p. - Published in : 10.18429/JACoW-IPAC2021-MOPAB001 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, Br, 24 - 28 May 2021, pp.37-40
2.

OPEN-PHO-ACCEL-2020-006
© 2020-2023 CERN
Installation of the last two secondary collimators (TCSPM) at Point 7
The last two Low-Impedance Secondary Collimators ( [...]
11-12-2020
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3.
Bound-free pair production from nuclear collisions and the steady-state quench limit of the main dipole magnets of the CERN Large Hadron Collider / Schaumann, Michaela (CERN) ; Jowett, John M. (CERN) ; Bahamonde Castro, Cristina (CERN) ; Bruce, Roderik (CERN) ; Lechner, Anton (CERN) ; Mertens, Tom (CERN)
During its Run 2 (2015-2018), the Large Hadron Collider (LHC) operated at almost twice higher energy, and provided Pb-Pb collisions with an order of magnitude higher luminosity, than in the previous Run 1. In consequence, the power of the secondary beams emitted from the interaction points by the bound-free pair production (BFPP) process increased by a factor ~20, while the propensity of the bending magnets to quench increased with the higher magnetic field. [...]
arXiv:2008.05312.- 2020-12-18 - 16 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 121003 Fulltext: PDF; Fulltext from publisher: PDF;
4.
Radiation Environment in the LHC Arc Sections During Run 2 and Future HL-LHC Operations / Biłko, Kacper (CERN) ; Bahamonde Castro, Cristina (CERN) ; Brugger, Markus (CERN) ; García Alía, Rubén (CERN) ; Kadi, Yacine (CERN) ; Lechner, Anton (CERN) ; Lerner, Giuseppe (CERN) ; Stein, Oliver (CERN)
The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) is the largest accelerator in the world, spanning a circumference of 26.7 km. During its operation, small fractions of the beams are being continuously lost. [...]
2020 - 9 p. - Published in : IEEE Trans. Nucl. Sci. 67 (2020) 1682-1690 Fulltext from publisher: PDF;
5.
Thermal Neutron-Induced SEUs in the LHC Accelerator Environment / Cecchetto, Matteo (CERN) ; García Alía, Rubén (CERN) ; Wrobel, Frédéric (IES, Montpellier) ; Tali, Maris (CERN) ; Stein, Oliver (CERN) ; Lerner, Giuseppe (CERN) ; Biłko, Kacper (CERN) ; Esposito, Luigi (CERN) ; Bahamonde Castro, Cristina (CERN) ; Kadi, Yacine (CERN) et al.
In addition to high-energy hadrons, which include neutrons, protons, and pions above 20 MeV, thermal neutrons (ThNs) are a major concern in terms of soft error rate (SER) for electronics operating in the large hadron collider (LHC) accelerator at the European Organization for Nuclear Research (CERN). Most of the electronic devices still contain Boron-10 inside their structure, which makes them sensitive to ThNs. [...]
2020 - 9 p. - Published in : IEEE Trans. Nucl. Sci. 67 (2020) 1412-1420 Fulltext from publisher: PDF;
6.
The 2018 heavy-ion run of the LHC / Jowett, John (CERN) ; Bahamonde Castro, Cristina (CERN) ; Bartmann, Wolfgang (CERN) ; Bracco, Chiara (CERN) ; Bruce, Roderik (CERN) ; Coello, Jaime (CERN) ; Dilly, Joschua (CERN) ; Fartoukh, Stephane (CERN) ; Fol, Elena (CERN) ; Fuster-Martínez, Nuria (CERN) et al.
The fourth one-month Pb-Pb collision run brought LHC Run 2 to an end in December 2018. Following the tendency to reduce dependence on the configuration of the preceding proton run, a completely new optics cycle with the strongest ever focussing at the ALICE and LHCb experiments was designed and rapidly implemented, demonstrating the maturity of the collider’s operating modes. [...]
CERN-ACC-2019-100.- 2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEYYPLM2 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEYYPLM2
7.
Radiation levels in the LHC during the 2015 Pb-Pb and 2016 p-Pb run and mitigation strategy for the electronic systems during HL-LHC operation / Martinella, Corinna (University of Jyvaskyla (FI)) ; Bahamonde Castro, Cristina (Ministere des affaires etrangeres et europeennes (FR)) ; Lechner, Anton (CERN) ; Danzeca, Salvatore (CERN) ; Kadi, Yacine (CERN) ; Brugger, Markus (CERN) ; Garcia Alia, Ruben (CERN)
During the Pb-Pb and p-Pb operations of LHC, high localized beam losses can induce a risk of failure for the electronic systems installed in the tunnel. [...]
CERN-ACC-NOTE-2018-0073.
- 2018. - 13 p.
Full text
8.
Improved Protection of the Warm Magnets of the LHC Betatron Cleaning Insertion / Bahamonde Castro, Cristina (CERN) ; Cerutti, Francesco (CERN) ; Fessia, Paolo (CERN) ; Lechner, Anton (CERN) ; Mereghetti, Alessio (CERN) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN) ; Skordis, Eleftherios (U. Liverpool (main) ; CERN)
After the High Luminosity (HL) upgrade in 2024-2026, the LHC is anticipated to increase its integrated luminosity by a factor of 10 beyond its original design value of 300 fb-1. In preparation for this, several improvements to the equipment will already be implemented during the next Long Shutdown (LS2) starting in 2019. [...]
CERN-ACC-2017-120.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-MOPAB004 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB004
9.
Energy Deposition in the Betatron Collimation Insertion of the 100 TeV Future Circular Collider / Besana, Maria Ilaria (CERN) ; Bahamonde Castro, Cristina (CERN) ; Bertarelli, Alessandro (CERN) ; Bruce, Roderik (CERN) ; Carra, Federico (CERN) ; Cerutti, Francesco (CERN) ; Ferrari, Alfredo (CERN) ; Fiascaris, Maria (CERN) ; Lechner, Anton (CERN) ; Mereghetti, Alessio (CERN) et al.
The FCC proton beam is designed to carry a total energy of about 8500 MJ, a factor of 20 above the LHC. In this context, the collimation system has to deal with extremely tight requirements to prevent quenches and material damage. [...]
CERN-ACC-2017-303.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-MOPAB003 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB003
10.
Bound-Free Pair Production in LHC Pb-Pb Operation at 6.37 Z TeV per Beam / Jowett, John (CERN) ; Auchmann, Bernhard (CERN) ; Bahamonde Castro, Cristina (CERN) ; Kalliokoski, Matti (CERN) ; Lechner, Anton (CERN) ; Mertens, Tom (CERN) ; Schaumann, Michaela (CERN) ; Xu, Chen (CERN)
In the 2015 Pb-Pb collision run of the LHC, the power of the secondary beams emitted from the interaction point by the bound-free pair production process reached new levels while the propensity of the bending magnets to quench is higher at the new magnetic field levels. This beam power is about 70 times greater than that contained in the luminosity debris and is focussed on a specific location. [...]
CERN-ACC-2016-245.- 2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-TUPMW028 Fulltext: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.TUPMW028

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