1.
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CLIC Tuning Performance Under Realistic Error Conditions
/ Marín, Eduardo (CERN) ; Latina, Andrea (CERN) ; Plassard, Fabien (CERN) ; Schulte, Daniel (CERN) ; Tomás, Rogelio (CERN)
In this paper we present the latest results regarding the tuning study of the baseline design of the CLIC Final Focus System. In previous studies, 90% of the machines reach 90% of the nominal luminosity, when considering beam position monitor errors and transverse misalignments of magnets for a single beam case. [...]
CERN-ACC-2017-162; CLIC-Note-1119.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUPVA130
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPVA130
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2.
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Tuning Simulations for the CLIC Traditional Beam Delivery System
/ Bodenstein, Ryan (JAI, UK) ; Burrows, Philip (JAI, UK) ; Marín, Eduardo (CERN) ; Plassard, Fabien (CERN) ; Tomás, Rogelio (CERN)
As the design of the CLIC Beam Delivery System (BDS) evolves, tuning simulations must be performed on each of the proposed lattice designs to see which system achieves the highest luminosity in the most realistic manner. This work will focus on the tuning simulations performed on the so-called Traditional lattice design for the center-of-mass energy of 3 TeV. [...]
CERN-ACC-2017-131; CLIC-Note-1118.-
2017 - 3 p.
- Published in : 10.18429/JACoW-IPAC2017-MOPIK108
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPIK108
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3.
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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
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4.
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Tuning-Based Design Optimization of CLIC Final Focus System at 3 TeV
/ Plassard, Fabien (CERN) ; Bambade, Philip (Orsay, LAL) ; Latina, Andrea (CERN) ; Marín, Eduardo (CERN) ; Schulte, Daniel (CERN) ; Tomás, Rogelio (CERN)
The tuning aims to mitigate static imperfections of the Final Focus System (FFS) for emittance preservation at the Interaction Point (IP). A simulation campaign on the nominal CLIC FFS at 3 TeV have shown the need of rethink the design in order to ease the tuning of the machine. [...]
CERN-ACC-2017-133; CLIC-Note-1108.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-MOPIK099
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPIK099
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5.
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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
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7.
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High Luminosity LHC optics and layout HLLHCV1.4
/ De Maria, Riccardo (CERN) ; Bruce, Roderik (CERN) ; Gamba, Davide (CERN) ; Giovannozzi, Massimo (CERN) ; Plassard, Fabien (CERN)
The goal of the High Luminosity Project is the upgrade of the LHC to deliver an integrated luminosity of at least 250 fb$^{-1}$ per year in each of the two high-luminosity, general-purpose detectors ATLAS and CMS. This article presents the latest layout design and the corresponding optics features, which comprise optimisation of the orbit corrector and crab cavity systems, and new estimates of the performance reach thanks to the new concept of fully remote alignment. [...]
CERN-ACC-2019-140.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPMP019
Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP019
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8.
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Transverse Tolerances of a Multi-Stage Plasma Wakefield Accelerator
/ Lindstrøm, Carl (Oslo U.) ; Adli, Erik (Oslo U.) ; Marín, Eduardo (CERN) ; Pfingstner, Juergen (Oslo U.) ; Schulte, Daniel (CERN)
Plasma wakefield acceleration (PWFA) provides GeV/m-scale accelerating fields, ideal for applications such as a future linear collider. However, strong focusing fields imply that a transversely offset beam with an energy spread will experience emittance growth from the energy dependent betatron oscillation. [...]
CERN-ACC-2016-212.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-WEPMY009
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.WEPMY009
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9.
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Impact of Dynamical Stray Fields on CLIC
/ Marín, Eduardo (CERN) ; Heilig, B. (Unlisted, HU) ; Pfingstner, Juergen (Oslo U.) ; Schulte, Daniel (CERN)
In this paper we estimate the tolerances of stray-fields variations on the Compact Linear Collider (CLIC), discuss possible sources and propose several solutions. The Beam Delivery System (BDS) is the most sensitive system of CLIC to unwanted magnetic field variations, already variations of 1 nT would reduce the luminosity by 10% at wavelengths comparable to the BDS without considering any correction mechanism. [...]
CERN-ACC-2017-134; CLIC-Note-1116.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-MOPIK077
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPIK077
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10.
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Progress in Ultra-Low β* Study at ATF2
/ Patecki, Marcin (CERN) ; Bett, Douglas (CERN) ; Kubo, Kiyoshi (KEK, Tsukuba ; Sokendai, Tsukuba) ; Kuroda, Shigeru (KEK, Tsukuba ; Sokendai, Tsukuba) ; Naito, Takashi (KEK, Tsukuba ; Sokendai, Tsukuba) ; Okugi, Toshiyuki (KEK, Tsukuba ; Sokendai, Tsukuba) ; Plassard, Fabien (CERN) ; Tauchi, Toshiaki (KEK, Tsukuba ; Sokendai, Tsukuba) ; Terunuma, Nobuhiro (KEK, Tsukuba ; Sokendai, Tsukuba) ; Tomás, Rogelio (CERN)
A nanometer beam size in the interaction point (IP) is required in case of future linear colliders for achieving the desired rate of particle collisions. KEK Accelerator Test Facility (ATF2), a scaled down implementation of the beam delivery system (BDS), serves for investigating the limits of electron beam focusing at the interaction point. [...]
CERN-ACC-2016-186.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-THPMB043
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPMB043
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