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CERN Document Server 79 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 1.31 δευτερόλεπτα. 
1.
High voltage consolidation of the temperature measurement channels of the LHC superconducting current leads / Trikoupis, N (CERN) ; Casas-Cubillos, J (CERN) ; Bustamante, E (CERN)
Recurrent dielectric breakdowns on the cryogenics instrumentation during the CERN LHC Electrical Quality Assurance (ELQA) campaigns led to an investigation of their root causes. During the CERN Long Shutdown 2 (LS2), several weaknesses were identified like floating wires or cable screens, cabling non-conformities, connector assembly issues, and weakness of the electronic conditioning cards. [...]
2023 - 8 p. - Published in : JINST 18 (2023) C02010
In : Topical Workshop on Electronics for Particle Physics 2022 (TWEPP 2022), Bergen, Norway, 19 - 23 Sep 2022, pp.C02010
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2.
Beam induced heat load instrumentation installed in LHC during the Long Shutdown 2 / Bradu, B (CERN) ; Brodzinski, K (CERN) ; Casas-Cubillos, J (CERN) ; Delikaris, D (CERN) ; Deschamps, J B (CERN) ; Le Naour, S (CERN) ; Pezzetti, M (CERN) ; Tavian, L (CERN) ; Tovar, A (CERN) ; Sisti, M (CERN) et al.
During the second run of the Large Hadron Collider (LHC) between 2015 and 2018, significant beam induced heat loads have been observed on the beam screens circuits impacting the cryogenic system capacity, mainly due to the electron clouds generated by the beams. To validate these measurements and to obtain precise heat load assessments and comparison with preliminary calculations based on existing hardware equipment at selected locations, it was decided to add new cryogenic instrumentation around the machine. [...]
2022 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 1240 (2022) 012043 Fulltext: PDF;
In : Cryogenic Engineering Conference and International Cryogenic Materials Conference, Online, 19 - 23 Jul 2021, pp.012043
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3.
Irradiation Test Results on Cryogenics Electronic Cards using the Smartfusion2 FPGA / Trikoupis, Nikolaos (CERN) ; Casas-Cubillos, Juan (CERN) ; Danzeca, Salvatore (CERN)
In the context of implementing more control and data processing capabilities in new electronic cards at the European Organization for Nuclear Research (CERN), the Smartfusion2 Flash-based Reprogrammable Field Programmable Gate Array (FPGA) has been tested in the CHARM radiation facility at CERN. The CHARM facility was configured to offer a representative radiation environment of the CERN's Large Hardon Collider (LHC) accelerator. [...]
2021 - 6 p. - Published in : 10.1109/radecs45761.2018.9328694
In : Conference on Radiation and its Effects on Components and Systems (RADECS 2019), 16 - 20 Sep 2019, Montpellier, France
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4.
Radiation Tolerance of Programmable Voltage Supply and High Galvanic Insulation Readout Electronics Used by CERN's LHC Cryogenics / Casas-Cubillos, Juan (CERN) ; Trikoupis, Nikolaos (CERN) ; Mekki, Julien (CERN)
Two new types of electronic cards have been tested in CERN's CHARM irradiation facility. The cards are a complete redesign of a programmable voltage power supply and a revision of a conditioning card used for resistance temperature sensors. [...]
2016 - 7 p. - Published in : IEEE Trans. Nucl. Sci. 63 (2016) 2022-2028
In : Conference on Radiation and its Effects on Components and Systems, Moscow, Russia, 14 - 18 Sep 2015, pp.2022-2028
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5.
Final report on the Controlled Cold Helium Spill Test in the LHC tunnel at CERN / Dufay-Chanat, L (CERN) ; Bremer, J (CERN) ; Casas-Cubillos, J (CERN) ; Chorowski, M (Wroclaw Tech. U.) ; Grabowski, M (Wroclaw Tech. U.) ; Jedrusyna, A (Wroclaw Tech. U.) ; Lindell, G (CERN) ; Nonis, M (CERN) ; Koettig, T (CERN) ; Vauthier, N (CERN) et al.
The 27 km circumference LHC underground tunnel is a space in which the helium cooled LHC magnets are installed. The vacuum enclosures of the superconducting magnets are protected by over-pressure safety relief devices that open whenever cold helium escapes either from the magnet cold enclosure or from the helium supply headers, into this vacuum enclosure. [...]
2015 - Published in : IOP Conf. Ser. Mater. Sci. Eng. 101 (2015) 012123 IOP Open Access article: PDF;
In : Advances in Cryogenic Engineering: Cryogenic Engineering Conference, Tucson, AZ, USA, 28 Jun - 2 Jul 2015, pp.012123
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6.
Controlled Cold Helium Spill Test in the LHC Tunnel at CERN / Koettig, T (CERN) ; Casas-Cubillos, J (CERN) ; Chorowski, M (Wroclaw Tech. U.) ; Dufay-Chanat, L (CERN) ; Grabowski, M (Wroclaw Tech. U.) ; Jedrusyna, A (Wroclaw Tech. U.) ; Lindell, G (CERN) ; Nonis, M (CERN) ; Vauthier, N (CERN) ; van Weelderen, R (CERN) et al.
The helium cooled magnets of the LHC particle accelerator are installed in a confined space, formed by a 27 km circumference 3.8 m diameter underground tunnel. The vacuum enclosures of the superconducting LHC magnets are protected by a lift plate against excessive overpressure created by eventual leaks from the magnet helium bath, or from the helium supply headers. [...]
2015 - 9 p. - Published in : Phys. Procedia 67 (2015) 1074-1082 Elsevier Open Access article: PDF;
In : 25th International Cryogenic Conference & International Cryogenic Materials Conference 2014, Twente U., Enschede, The Netherlands, 07 - 11 Jul 2014, pp.1074-1082
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7.
Analysis of the Failures and Corrective Actions for the LHC Cryogenics Radiation Tolerant Electronics and its Field Instruments / Balle, Ch (CERN) ; Casas-Cubillos, J (CERN) ; Vauthier, N (CERN)
The LHC cryogenic system radiation tolerant electronics and their associated field instruments have been in nominal conditions since before the commissioning of the first LHC beams in September 2008. [...]
CERN-ACC-2014-0322. - 2014. - 8 p.
Full text
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8.
Upgrade of the Gas Flow Control System of the Resistive Current Leads of the LHC Inner Triplet Magnets: Simulation and Experimental Validation / Perin, A (CERN) ; Almeida, M (Universidade Federal de Minas Gerais, Belo Horizonte, Brazil) ; Casas-Cubillos, J (CERN) ; Pezzetti, M (CERN)
The 600 A and 120 A circuits of the inner triplet magnets of the Large Hadron Collider are powered by resistive gas cooled current leads. [...]
CERN-ACC-2014-0313. - 2014. - 8 p.
Full text
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9.
Main Consolidations and Improvements of the Control System and Instrumentation for the LHC Cryogenics / Fluder, C (CERN) ; Blanco, E (CERN) ; Bremer, J (CERN) ; Bremer, K (CERN) ; Ivens, B (CERN) ; Casas-Cubillos, J (CERN) ; Claudet, S (CERN) ; Gomes, P (CERN) ; Ivens, B (CERN) ; Perin, A (CERN) et al.
Operation of the LHC during 2010 and 2011 with 3.5 TeV beam energy and luminosity up to 3.65x1033 cm-2 s-1, led to radiation-induced failures of micro-electronic devices used in the cryogenic control system. [...]
CERN-ATS-2013-005. - 2013. - 5 p.
Full text
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10.
Expected Accuracy when using Non-Calibrated CernoxTM Sensors / Casas-Cubillos, J (CERN) ; Vauthier, N (CERN)
Within the ITER-CERN collaboration agreement, task “PROCUREMENT OF CRYOGENIC THERMOMETERS TO MONITOR ITER MAGNETS AND FEEDER TEMPERATURES”, CERN is investigating what would be the expected accuracy when using non-calibrated Cernox™ temperature sensors at 4.2 K. [...]
CERN-ATS-2012-086. - 2012. - 7 p.
Full text
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CERN Document Server : 79 εγγραφές βρέθηκαν   1 - 10επόμενοτέλος  μετάβαση στην εγγραφή:
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