2021-02-09 04:01 |
Úplný záznam - Podobné záznamy
|
2021-01-27 06:31 |
Úplný záznam - Podobné záznamy
|
2021-01-27 06:31 |
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. The ATLAS and CMS detectors will be upgraded to handle an average pile-up, the number of events per bunch crossing, of at least 140 (ultimately 200), corresponding to an instantaneous luminosity of approximately 5 × 1034 cm-2 s-1 (ultimately 7.5 × 1034 cm-2 s-1) for operation with 25 ns beams consisting of 2760 bunches at 7 TeV, and for an inelastic cross-section σin = 81 mb. [...]
2020 - 30 p.
- Published in : 10.23731/CYRM-2020-0010.17
Fulltext: PDF;
In : High-Luminosity Large Hadron Collider (HL-LHC): Technical design report
|
Úplný záznam - Podobné záznamy
|
2021-01-27 06:31 |
Úplný záznam - Podobné záznamy
|
2021-01-27 06:31 |
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. Many power tests will be done in laboratories collaborating with CERN (BNL for vertical test of Q1/Q3, FNAL for horizontal test of Q1/Q3, KEK for vertical test of D1, LASA for vertical test of high order correctors, IMP (Lanzhou-China) for vertical test of D2 correctors, FREIA (Univ. [...]
2020 - 18 p.
- Published in : 10.23731/CYRM-2020-0010.47
Fulltext: PDF;
In : High-Luminosity Large Hadron Collider (HL-LHC): Technical design report
|
Úplný záznam - Podobné záznamy
|
2021-01-27 06:31 |
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. A modulation of the klystron and cavity phase make the phase of bunches with respect to the RF clock to progressively slip along the bunch train, but then recover during the abort gap. [...]
2020 - 22 p.
- Published in : 10.23731/CYRM-2020-0010.65
Fulltext: PDF;
In : High-Luminosity Large Hadron Collider (HL-LHC): Technical design report
|
Úplný záznam - Podobné záznamy
|
2021-01-27 06:31 |
Úplný záznam - Podobné záznamy
|
2021-01-27 06:31 |
Úplný záznam - Podobné záznamy
|
2021-01-27 06:31 |
Úplný záznam - Podobné záznamy
|
2021-01-27 06:31 |
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. The LHC was built with modular power converters to facilitate maintenance and integrate the redundancy principle. [...]
2020 - 14 p.
- Published in : 10.23731/CYRM-2020-0010.139
Fulltext: PDF;
In : High-Luminosity Large Hadron Collider (HL-LHC): Technical design report
|
Úplný záznam - Podobné záznamy
|
|
|