002261339 001__ 2261339
002261339 003__ SzGeCERN
002261339 005__ 20180126153736.0
002261339 0247_ $$2DOI$$9IEEE$$a10.1109/TASC.2016.2528044
002261339 0248_ $$aoai:inspirehep.net:1479385$$pcerncds:CERN$$qINSPIRE:HEP$$qForCDS
002261339 035__ $$9http://inspirehep.net/oai2d$$aoai:inspirehep.net:1479385$$d2017-04-26T13:56:42Z$$h2017-04-27T04:00:06Z$$mmarcxml
002261339 035__ $$9Inspire$$a1479385
002261339 041__ $$aeng
002261339 100__ $$aPrincipe, R$$uCERN
002261339 245__ $$aQuality Assurance of the 13-kA Superconducting Magnet Circuits Consolidation of the LHC at CERN
002261339 260__ $$c2016
002261339 300__ $$a5 p
002261339 520__ $$9IEEE$$aThe Large Hadron Collider (LHC) is designed to operate at a nominal energy of 14 TeV in the center of mass. Following the incident that occurred in 2008, LHC operated at intermediate energies ranging from 7 to 8 TeV to avoid any further risk of failure. The first long shutdown (LS1) of the LHC machine started in February 2013 and was mainly triggered by the consolidation of the 13-kA superconducting magnet interconnections. The key element of the consolidation consists of adding copper shunts on the LHC splices to ensure the electrical continuity in the 13-kA resistive part of the circuits. The consolidation work was organized in the form of a “train” of specialized teams working in sequence, altogether consisting of about 100 technicians, including production, supervision, and quality assurance. A Large Magnet Facility Quality Assurance (LMF-QA) team was created in the beginning of 2012 to overview, plan, and organize the quality management of the consolidation train for LS1. For 1695 interconnects, each containing six 13-kA splices, of which two belong to the main dipole circuit and four to the main quadrupole circuits, almost 14 000 interventions and quality checks were planned and performed for the 10 170 magnet-to-magnet splices. This careful monitoring of the performance indicators allowed a constant improvement of the production quality. The final analysis confirmed that the collected data are in a confidence interval of 99.5 ± 0.3 with a confidence level of 99%. With the LMF-QA data analysis and the Electrical Quality Control contribution, the LHC splices are fully characterized at room temperature. This paper presents a general overview of the quality assurance activity and provides a concise description of the method adopted by the LMF team throughout the LS1 project.
002261339 65017 $$2SzGeCERN$$aAccelerators and Storage Rings
002261339 6531_ $$9author$$acopper
002261339 6531_ $$9author$$aquality control
002261339 6531_ $$9author$$asuperconducting integrated circuits
002261339 6531_ $$9author$$asuperconducting interconnections
002261339 6531_ $$9author$$asuperconducting magnets
002261339 6531_ $$9author$$aCERN
002261339 6531_ $$9author$$aCu
002261339 6531_ $$9author$$aLHC machine
002261339 6531_ $$9author$$aLMF team
002261339 6531_ $$9author$$aLMF-QA
002261339 6531_ $$9author$$aLS1 project
002261339 6531_ $$9author$$acopper shunts
002261339 6531_ $$9author$$acurrent 13 kA
002261339 6531_ $$9author$$adipole circuit
002261339 6531_ $$9author$$aelectrical continuity
002261339 6531_ $$9author$$aelectrical quality control contribution
002261339 6531_ $$9author$$alarge Hadron collider
002261339 6531_ $$9author$$alarge magnet facility quality assurance
002261339 6531_ $$9author$$amagnet-to-magnet splices
002261339 6531_ $$9author$$aquadrupole circuits
002261339 6531_ $$9author$$asuperconducting magnet circuits
002261339 6531_ $$9author$$asuperconducting magnet interconnections
002261339 6531_ $$9author$$atemperature 293 K to 298 K
002261339 6531_ $$9author$$aCopper
002261339 6531_ $$9author$$aLarge Hadron Collider
002261339 6531_ $$9author$$aQuality assurance
002261339 6531_ $$9author$$aSoldering
002261339 6531_ $$9author$$aSuperconducting magnets
002261339 6531_ $$9author$$aTemperature measurement
002261339 6531_ $$9author$$aLHC first Long Shutdown (LS1)
002261339 6531_ $$9author$$aLHC first long shutdown (LS1)
002261339 6531_ $$9author$$aLarge Magnet Facility (LMF)
002261339 6531_ $$9author$$aQuality Assurance (QA)
002261339 6531_ $$9author$$aSuperconducting Magnets and Circuits Consolidation (SMACC)
002261339 6531_ $$9author$$aquality assurance (QA);
002261339 690C_ $$aCERN
002261339 700__ $$aGaasch, J B$$uCERN
002261339 700__ $$aHousiaux, O$$uCERN
002261339 700__ $$aMenu, S$$uCERN
002261339 700__ $$aMunawar, M$$uIslamabad, Pakistan AEC
002261339 700__ $$aPopescu, S$$uCERN
002261339 700__ $$aSavary, F$$uCERN
002261339 773__ $$c4804205$$n4$$pIEEE Trans. Appl. Supercond.$$v26$$wC15-10-18.1$$y2016
002261339 960__ $$a13
002261339 962__ $$b2302076$$k4804205$$nseoul20151018
002261339 980__ $$aARTICLE
002261339 980__ $$aConferencePaper