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Chapter 2: Machine layout and performance
/ Arduini, G (CERN) ; Bruce, R (CERN) ; De Maria, R (CERN) ; Giovannozzi, M (CERN) ; Iadarola, G (CERN) ; Jowett, J (CERN) ; Métral, E (CERN) ; Papaphilippou, Y (CERN) ; Garcia, R Tomás (CERN)
The goal of the High-luminosity upgrade of the LHC is to deliver an integrated luminosity of at least 250 fb-1 per year (assuming at least 160 days of operation at high-luminosity) in each of the two high-luminosity general-purpose detectors, ATLAS and CMS, located at the interaction points (IP) 1 and 5, respectively. [...]
2020. - 30 p.
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Chapter 3: Insertion Magnets
/ Todesco, E (CERN) ; Ferracin, P (CERN)
In general, magnets will be tested individually in a vertical test station, and then horizontally in the final cold mass assembly within the final cryostat, with the exception of Q2 and D2 whose length does not allow vertical testing. [...]
2020. - 18 p.
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Chapter 4: RF systems
/ Calaga, R (CERN) ; Baudrenghien, P (CERN) ; Capatina, Ofelia (CERN) ; Jensen, Erk (CERN) ; Montesinos, Eric (CERN)
The HL-LHC beams are injected, accelerated, and stored to their nominal energy of 7 TeV by the existing 400 MHz superconducting RF system of the LHC.
A novel superconducting RF system consisting of eight cavities per beam for transverse deflection (aka crab cavities) of the bunches will be used to compensate the geometric loss in luminosity due to the non-zero crossing angle and the extreme focusing of the bunches in the HL-LHC.
Due to doubling of the beam currents in the HL-LHC era, an optimal detuning scheme (aka full- detuning) is required to cope with the transient beam loading effects. [...]
2020. - 22 p.
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Chapter 6B: Warm powering of the superconducting circuits
/ Martino, M (CERN) ; Burnet, J-P (CERN) ; Cerqueira Bastos, M (CERN) ; Herrero Gonzales, V R (CERN) ; Kuczerowski, N (CERN) ; Pittet, S (CERN) ; Thiesen, H (CERN) ; Thurel, Y (CERN) ; Todd, B (CERN) ; Yammine, S (CERN)
The warm powering of the HL-LHC involves the new circuits of the Inner Triplets and the Separation/Recombination magnets in Point 1 and Point 5, the powering of the 11 T magnets in Point 7, and the final R2E consolidation phase in LS3. [...]
2020. - 14 p.
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Chapter 7: Machine protection
/ Wollmann, D (CERN) ; Denz, R (CERN) ; Lindstrom, B (CERN) ; Ravaioli, E (CERN) ; Rodriguez Mateos, F (CERN) ; Siemko, A (CERN) ; Uythoven, J (CERN) ; Verweij, A (CERN) ; Will, A (CERN) ; Zerlauth, M (CERN)
Since the previous TDR version 0.1, the hardware development has made significant progress. [...]
2020. - 16 p.
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