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CERN Document Server Sök i 7 journaler efter:  Sökningen tog 0.47 sekunder. 
1.
RF Performance Results of RF Double Quarter Wave Resonators for LHC High Luminosity Project / Turaj, Katarzyna (CERN) ; Bastard, Jeremy (CERN) ; Calaga, Rama (CERN) ; Calvo, Sebastien (CERN) ; Capatina, Ofelia (CERN) ; Castilla, Alejandro (CERN ; Jefferson Lab) ; Chiodini, Marco (CERN) ; Duval, Christophe (CERN) ; Edwards, Amelia (CERN ; Lancaster U.) ; Ferreira, Leonel (CERN) et al.
The LHC High Luminosity (HL-LHC) project includes, among other key items, the installation of superconducting crab cavities in the LHC machine. The Double Quarter Wave (DQW) crab cavity will be utilised to compensate for the effects of the vertical crossing angle [...]
2023 - 7 p. - Published in : JACoW SRF 2023 (2023) 925-928 Fulltext: PDF;
In : 21st International Conference on Radio-Frequency Superconductivity (SRF 2023), Grand Rapids, MI, United States, 22 - 30 Jun 2023, pp.925-928
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2.
RF Dipole Crab Cavity Testing for HL-LHC / Valverde Alonso, Nuria (CERN) ; Calaga, Rama (CERN) ; Calvo, Sebastien (CERN) ; Capatina, Ofelia (CERN) ; Castilla, Alejandro (CERN ; Lancaster U. (main)) ; Chiodini, Marco (CERN) ; Duval, Christophe (CERN) ; Ferreira, Leonel (CERN) ; Gourragne, Max (CERN) ; Kohler, Paul (CERN) et al.
RF Crab Cavities are an essential element of the High Luminosity LHC (HL-LHC) upgrade at CERN. Two RF dipole crab cavity used for the compensation of the horizontal crossing angle were recently manufactured and integrated into Titanium Helium tank and RF ancillaries necessary for the beam operation. [...]
2022 - 7 p. - Published in : JACoW SRF 2021 (2022) 687-693 Fulltext: PDF;
In : 20th International Conference on RF Superconductivity (SRF 2021), Online, US, 28 Jun - 2 Jul 2021, pp.687-693
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3.
Operation Experience with the LHC ACS RF System / Turaj, Katarzyna (CERN) ; Arnaudon, Luca (CERN) ; Baudrenghien, Philippe (CERN) ; Brunner, Olivier (CERN) ; Butterworth, Andrew (CERN) ; Gerigk, Frank (CERN) ; Karppinen, Mikko (CERN) ; Maesen, Pierre (CERN) ; Montesinos, Eric (CERN) ; Peauger, Franck (CERN) et al.
The LHC accelerating RF system consists of two cryomodules per beam, each containing four single-cell niobium sputtered 400.8 MHz superconducting cavities working at 4.5 K and an average accelerating voltage of 2 MV. The paper summarises the experience, availability and evolution of the system within 10 years of operation. [...]
SRF2019.- 2019 - 4 p. - Published in : 10.18429/JACoW-SRF2019-THP031 Fulltext: PDF;
In : 19th International Conference on RF Superconductivity, Dresden, Germany, 30 Jun - 05 Jul 2019, pp.913-916
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4.
Assessment of the Mechanical Properties of Ultra-High Purity Niobium after Cold Work and Heat Treatment with the HL-LHC Crab Cavities as Benchmark / Gallifa Terricabras, Adria (CERN) ; Amorim Carvalho, Alexandre (CERN) ; Aviles Santillana, Ignacio (CERN) ; Barriere, Simon (CERN) ; Calaga, Rama (CERN) ; Cano Pleite, Eduardo (CERN) ; Capatina, Ofelia (CERN) ; Crouvizier, Mickael Denis (CERN) ; Dassa, Luca (CERN) ; Meyer, Mickael Sebastien (CERN) et al.
The High Luminosity Large Hadron Collider (HL-LHC) is the upgrade of the world’s largest particle collider; it will allow the full exploitation of the LHC potential and its operation beyond 2025. An essential part of the HL-LHC project are the Crab Cavities, that are particle de-flecting SRF cavities of non-axisymmetric shape made of bulk ultra-high purity Nb. [...]
CERN-ACC-2019-0050.- Geneva : CERN, 2019 - 7 p. - Published in : (2019) , pp. 862-867 Fulltext: 1018429JACoWSRF2019THP012 - PDF; CERN-ACC-2019-0050 - PDF;
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5.
First results of SRF cavity fabrication by electro-hydraulic forming at CERN / Atieh, Said (CERN) ; Alleman, Daniel (Unlisted, FR) ; Amorim Carvalho, Alexandre (CERN) ; Aviles Santillana, Ignacio (CERN) ; Avrillaud, Gilles (Unlisted, FR) ; Bertinelli, Francesco (CERN) ; Bonafe, Jonathan (Unlisted, FR) ; Calaga, Rama (CERN) ; Capatina, Ofelia (CERN) ; Favre, Gilles (CERN) et al.
In the framework of many accelerator projects relying on RF superconducting technology, shape conformity and processing time are key aspects for the optimization of niobium cavity fabrication. An alternative technique to traditional shaping methods, such as deep-drawing and spinning, is Electro-Hydraulic Forming (EHF). [...]
2015 - 7 p. - Published in : 10.18429/JACoW-SRF2015-THAA05 Fulltext: PDF;
In : 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.THAA05
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6.
CERN’s bulk niobium high gradient SRF programme: developments and recent cold test results / Macpherson, Alick (CERN) ; Hernández-Chahín, Karim (Mexico, ININ ; CERN) ; Jarrige, Christophe (CERN) ; Maesen, Pierre (CERN) ; Pillon, Francois (CERN) ; Schirm, Karl (CERN) ; Torres-Sanchez, Roberto (CERN) ; Valverde Alonso, Nuria (CERN)
Recent results from the bulk niobium high-gradient cavity development program at CERN are presented, with particular focus on test results for the 704 MHz bulk niobium 5-cell elliptical cavity prototypes produced for the Superconducting Proton Linac (SPL) project. Successive cold tests of bare cavities have been used to refine the cavity preparation and testing process, with all steps done in-house at CERN. [...]
2015 - 5 p. - Published in : 10.18429/JACoW-SRF2015-MOPB074 Fulltext: PDF;
In : 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.MOPB074
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7.
Electron Beam Welding and Vacuum Brazing Characterization for SRF Cavities / Valverde Alonso, Nuria (CERN) ; Atieh, Said (CERN) ; Aviles Santillana, Ignacio (CERN) ; Calatroni, Sergio (CERN) ; Capatina, Ofelia (CERN) ; Ferreira, Leonel (CERN) ; Pillon, Francois (CERN) ; Redondas Monteserin, Manuel (CERN) ; Renaglia, Thierry (CERN) ; Schirm, Karl (CERN) et al.
In the framework of the SPL R&D; effort at CERN, development design efforts study the joining of dissimilar metals: bulk niobium for the superconducting RF cavities and stainless steel (316LN) or titanium alloys (Ti-6Al-4V and Nb55Ti) for the cryostats. Joining techniques of electron beam welding (EBW) and vacuum brazing are particularly important for these applications. [...]
CERN-ACC-2014-366.- 2014 - 3 p. - Published in : (2014) , pp. THPP039 Fulltext: PDF; External link: JACoW server
In : 27th Linear Accelerator Conference, Geneva, Switzerland, 31 Aug - 5 Sep 2014, pp.THPP039
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