CERN Accelerating science

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1.
Dual beam delivery system serving two interaction regions for the Compact Linear Collider / Cilento, Vera (CERN) ; Tomás, Rogelio (CERN) ; Cure, Benoit (CERN) ; Faus-Golfe, Angeles (IJCLab, Orsay) ; Dalena, Barbara (IRFU, Saclay, DACM) ; Levinsen, Yngve (ESS, Lund)
The Compact Linear Collider (CLIC) could provide $e^+e^−$ collisions in two detectors simultaneously possibly at a bunch train frequency in the linac twice the baseline design value. In this paper, a novel dual beam delivery system (BDS) design is presented in order to serve two interaction regions (IR1 and IR2) including optics designs and the evaluation of luminosity performance with synchrotron radiation (SR) and solenoid effects for both energy stages of CLIC, 380 GeV and 3 TeV. [...]
2021 - 10 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 071001 Fulltext: PDF;
2.
Optics Design of a novel Beam Delivery System for CLIC: the case of two Interaction Regions. First experiments for the validation of the ultra-low βy∗ nanometer beam size at ATF2 / Cilento, Vera
The Compact Linear Collider (CLIC) could provide e+e− collisions in two detectors simultaneously at a bunch train frequency in the linac twice the baseline design value [...]
CERN-THESIS-2021-349 - 160 p.

3.
A CLIC Dual Beam Delivery System for Two Interaction Regions / Cilento, Vera (CERN ; IJCLab, Orsay) ; Faus-Golfe, Angeles (IJCLab, Orsay) ; Tomás García, Rogelio (CERN)
The Compact Linear Collider (CLIC) could provide e⁺e⁻ collisions in two detectors simultaneously possibly at a repetition frequency twice the design value. In this paper, a novel dual Beam Delivery System (BDS) design is presented including optics designs and the evaluation of luminosity performance with synchrotron radiation (SR) and solenoid effects for both energy stages of CLIC, 380 GeV and 3 TeV. [...]
Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 1364-1367 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1364-1367
4.
Beam Delivery System Optimization for CLIC 380 GeV / Plassard, Fabien (CERN) ; Bambade, Philip (Orsay, LAL) ; Latina, Andrea (CERN) ; Marín, Eduardo (CERN) ; Schulte, Daniel (CERN) ; Tomás, Rogelio (CERN)
In the framework of the CLIC rebaselining, the Beam Delivery System (BDS) have been re-optimized for its initial stage at 380 GeV. Two BDS designs with L*=4.3 meters and L*=6 meters have been investigated. [...]
CERN-ACC-2017-132; CLIC-Note-1117.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-MOPIK100 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPIK100
5.
Resistive wall effects in the CLIC Beam Delivery System / Arominski, Dominik (Warsaw University of Technology (PL) ; CERN) ; Latina, Andrea (CERN) ; Schulte, Daniel (CERN)
Resistive wall wakefields are an important issue to study for future linear colliders. Wakefields in the Beam Delivery System (BDS) might cause severe multi-bunch effects, leading to beam quality and luminosity losses. [...]
CLICdp-Conf-2019-006.- Geneva : JACoW, 2019 - 4. - Published in : 10.18429/JACoW-IPAC2019-MOPGW071 CLICdp Note: PDF; Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPGW071
6.
Intra-beam IP Feedback Studies for the 380 GeV CLIC Beam Delivery System / Bodenstein, Ryan (Oxford U., JAI) ; Burrows, Philip (Oxford U., JAI) ; Plassard, Fabien (CERN) ; Snuverink, Jochem (Royal Holloway, U. of London)
In its currently-envisaged initial stage, the Compact Linear Collider (CLIC) will collide beams with a 380 GeV center of mass energy. To maintain the luminosity within a few percent of the design value, beam stability at the interaction point (IP) must be controlled at the sub-nanometer level. [...]
CERN-ACC-2016-202; CERN-ACC-2016-203; CLIC-Note-1093.- 2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-WEPOR009 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.WEPOR009
7.
CLIC Beam Delivery System Rebaselining and Long L* Lattice Optimization / Plassard, Fabien (CERN) ; Bambade, Philip (Orsay, LAL) ; Schulte, Daniel (CERN) ; Tomás, Rogelio (CERN)
This paper summarizes the re-optimization study made on the CLIC Beam Delivery System (BDS) in the framework of the rebaselining for beam collisions at 380 GeV for the initial energy stage. It describes the optimization process applied for the beam parameters as well as for the Final Focus system (FFS) lattice design with respect to the energy upgrade transition to 3 TeV. [...]
CERN-ACC-2016-172.- 2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-THPMR045 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPMR045
8.
Updated CLIC luminosity staging baseline and Higgs coupling prospects / Roloff, Philipp Gerhard (CERN) ; Robson, Aidan (University of Glasgow (GB))
An updated luminosity staging baseline for CLIC is presented. Assuming accelerator ramp-up and up-time scenarios that are harmonized with those of other potential future colliders, CLIC will deliver 1 ab$^{−1}$ at $\sqrt{s}$=380 GeV, 2.5 ab$^{−1}$ at $\sqrt{s}$=1.5 TeV, and 5 ab$^{−1}$ at $\sqrt{s}$=3 TeV. [...]
arXiv:1812.01644; CLICdp-Note-2018-002.- Geneva : CERN, 2018 - 9 p. Final version: PDF; Fulltext: PDF;
9.
Optics constrains imposed by the injection in IR2 and IR8 / Brüning, Oliver Sim (CERN) ; Jeanneret, J B (CERN)
LHC-Project-Note-141.- Geneva : CERN, 1998 Fulltext: PDF;
10.
Estimates of Annual Proton Doses in the LHC / Lamont, M (CERN)
Given certain operational assumptions, estimates are made for annual total number of protons lost in the cleaning insertions (IR3 and IR7), the arcs, and the high luminosity insertions (IR1 and IR5) during the first full year of physics, nominal and ultimate LHC running conditions. The results are compared with previous estimates..
LHC-Project-Note-375; CERN-LHC-Project-Note-375.- Geneva : CERN, 2005 - 15 p. Access to fulltext document: PDF;

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