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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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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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4.
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Oide Limit Mitigation Studies
/ Blanco-García, Oscar (Orsay, LAL) ; Bambade, Philip (Orsay, LAL) ; Tomás, Rogelio (CERN)
Particle radiation when traversing a focusing quadrupole limits the minimum achievable beam size, known as the Oide limit. This effect may be compensated by a pair of multipoles which reduce the impact of the energy loss in the vertical beam size. [...]
CERN-ACC-2015-375.-
2015 - 3 p.
- Published in : (2015) , pp. MOPHA004
Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.MOPHA004
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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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Simulation of the FCC-hh collimation system
/ Molson, James (Orsay, LAL) ; Bambade, Philip (Orsay, LAL) ; Chancé, Sophie (Orsay, LAL) ; Faus-Golfe, Angeles (Orsay, LAL ; Valencia U., IFIC)
The proposed CERN FCC-hh proton-proton collider will operate at unprecedented per-particle (50 TeV) and total stored beam energies (8.4 GJ). These high energies create the requirement for an efficient collimation system in order to protect the accelerator components and experiments. [...]
2016 - 3 p.
- Published in : 10.18429/JACoW-IPAC2016-TUPMR054
Fulltext: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.TUPMR054
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Early Commissioning of the Luminosity Dither System for SuperKEKB
/ Funakoshi, Yoshihiro (KEK, Tsukuba) ; Bambade, Philip (Orsay, LAL) ; Brown, David (SLAC) ; Di Carlo, Salvatore (Orsay, LAL) ; El Khechen, Dima (CERN) ; Fisher, Alan (SLAC) ; Jehanno, Didier (Orsay, LAL) ; Kawamoto, Takashi (KEK, Tsukuba) ; Masuzawa, Mika (KEK, Tsukuba) ; Nakamura, Shu (KEK, Tsukuba) et al.
SuperKEKB is an electron-positron double ring collider at KEK which aims at a peak luminosity of 8 x 10³⁵ cm⁻²s⁻¹ by using what is known as the ’nano-beam’ scheme. A luminosity dither system is employed for collision orbit feedback in the horizontal plane. [...]
JACOW, 2019 - 5 p.
- Published in : 10.18429/JACoW-eeFACT2018-WEXBA04
Published fulltext: PDF;
In : 62nd ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e− Colliders, Hong Kong, China, 24 - 27 Sep 2018, pp.WEXBA04
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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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Development of a a YAG/OTR Monitor
/ Yang, Renjun (Orsay, LAL) ; Aryshev, Alexander (KEK, Tsukuba) ; Bambade, Philip (Orsay, LAL) ; Bergamaschi, Michele (CERN) ; Naito, Takashi (KEK, Tsukuba) ; Terunuma, Nobuhiro (KEK, Tsukuba) ; Wallon, Sandry (Orsay, LAL)
To investigate the mechanisms of beam halo formation and its dynamics, a YAG/OTR monitor has been developed and tested at the KEK-ATF. The monitor has four ceramic Ce:YAG screens for the visualization of the beam core and beam halo and an OTR target to provide complementary beam core measurements. [...]
JACoW, 2019 - 5 p.
- Published in : 10.18429/JACoW-IBIC2018-WEPB02
Published fulltext: PDF;
In : 7th International Beam Instrumentation Conference, Shanghai, China, 9 - 13 Sep, 2018, pp.WEPB02
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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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