CERN Accelerating science

ATS Reports

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Design of High-Precision lifting system for the HL-LHC Heavy Components in the interaction region / Micolon, Frederic ; Sosin, Mateusz (CERN)
Given the high radiation level and the tight alignment tolerances, the HL-LHC interaction region components are designed to be realigned remotely using motorized supporting jacks, as human interventions in these zones must be limited to the strict minimum. A position adjustment system will allow a vertical and horizontal displacement of each jack support by at least +/- 2.5 mm with a resolution of less than 10 μm [...]
CERN-ACC-2021-0006.- Geneva : CERN, 2021 - 4 p.
In : 11th International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation, Online, Us, Online, 26 - 29 Jul 2021, pp.MEDSI20

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Mechanical Behavior of the Shielded HL-LHC Beam Screen during a Magnet Quench / Morrone, Marco (CERN) ; Garion, Cedric (CERN) ; Chiggiato, Paolo (CERN) ; Sacristan De Frutos, Oscar ; Guinchard, Michael (CERN) ; Fiscarelli, Lucio (CERN)
In the framework of the High-Luminosity Large Hadron Collider (HL-LHC) project, larger and shielded beam screens will be installed in the beam pipe of the superconducting magnets of the insertion next to the ATLAS and CMS detectors. The beam screen is a complex assembly that guarantees the vacuum requirements while shielding the magnet cold mass from the induced heat loads. [...]
CERN-ACC-2021-0005.- Geneva : CERN, 2021 - 24 p. - Published in : IEEE Trans. Appl. Supercond. 31 (2021) 9000616 Fulltext: PDF;

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Novel open cavity design for rotating mode SLED-type rf pulse compressors / Wu, Xiaowei (CERN) ; Grudiev, Alexej (CERN)
A new X-band high-power rotating mode SLAC Energy Doubler (SLED)-type rf pulse compressor is proposed. [...]
CERN-ACC-2021-0004 ; CLIC-Note-1172.
- 2021. - 9 p.
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New optimized fully loaded CLIC drive beam accelerating structure design / DORDA MARTIN, Ana (CERN) ; Doebert, Steffen (CERN)
The CLIC drive beam accelerator (DBA) provides a very high current beam to supply the RF power to the main accelerator; therefore, its efficiency is the most important figure of merit. [...]
CERN-ACC-2021-0003 ; CLIC-Note-1171.
- 2021. - 19 p.
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Thermal and Modal Simulations for the CLIC Module / Petry, Alice (Helsinki Institute of Physics (FI))
The accelerating technologies used in CLIC currently have an RF efficiency of about 40 % The RF losses are dissipated as heat into the cavity disks of the super-accelerating structures, which leads to unwanted thermal deformation. [...]
CERN-ACC-2021-0002 ; CLIC-Note-1170.
- 2021. - 18 p.
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The CLIC Wake Field Monitor Study / Lillestol, Reidar Lunde
In a particle collider like CLIC, it is vital to achieve high luminosities in order to be able to study rare physics processes. [...]
CERN-ACC-2021-0001 ; CLIC-Note-1169.
- 2017. - 19 p.
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BE Department Annual Report 2019 / Collier, Paul (CERN) ; Arduini, Gianluigi (CERN) ; Billen, Ronny (CERN) ; Hatziangeli, Eugenia (CERN) ; Jensen, Erk (CERN) ; Jones, Rhodri (CERN) ; Laderi, Efthymia (CERN) ; Lamont, Mike (CERN) ; Mackney, Anna (CERN) ; Sollander, Peter (CERN) et al.
The Beams Department hosts the Groups responsible for the beam generation, acceleration, diagnostics, controls and performance optimization for the whole CERN accelerator complex. [...]
- 2020. - 96 p.
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The Compact Linear Collider (CLIC) Snowmass 2021 LoI / Robson, Aidan (University of Glasgow (GB)) ; Burrows, Philip Nicholas (University of Oxford (GB)) ; Schulte, Daniel (CERN) ; Stapnes, Steinar (CERN)
The Compact Linear Collider (CLIC) is a multi-TeV high-luminosity linear e+e− collider under development by the CLIC accelerator collaboration. [...]
CERN-ACC-2020-0033 ; CLIC-Note-1168.
- 2020. - 4 p.
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Beam Dynamics Challenges for High-Energy Linear Colliders / Adli, Erik (University of Oslo (NO)) ; Burrows, Philip Nicholas (University of Oxford (GB)) ; Schulte, Daniel (CERN) ; Stapnes, Steinar (CERN)
CLIC can in principle be extended to higher energies than the currently foreseen 3 TeV final stage. [...]
CERN-ACC-2020-0032 ; CLIC-Note-1167.
- 2020. - 4 p.
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The design update of the X-band RF pulse compressor with Correction Cavities for the CLIC 380 GeV klystron based accelerator / Cai, Jinchi (Lancaster University (GB)) ; Syratchev, Igor (CERN)
The X-band RF Pulse Compressor (PC) with Correction Cavities was selected as a base line option for the CLIC 380 GeV klystron based accelerator. [...]
CERN-ACC-2020-0031 ; CLIC-Note-1166.
- 2020. - 6 p.
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