CERN Accelerating science

ATS Reports

Последно добавени:
2016-01-26
17:09
Nine years of carbon coating development for the SPS upgrade: achievements and heritage. / Taborelli, Mauro (CERN) ; Chiggiato, Paolo (CERN) ; Costa Pinto, Pedro (CERN) ; Cruikshank, Paul (CERN)
CERN has succeeded in producing carbon coatings that eradicate electron cloud in accelerators without any beam conditioning or in situ heating [...]
CERN-ACC-2016-0010.
- 2015. - 20 p.
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2016-01-19
15:36
Standardization of automated industrial test equipment for mass production of control systems / Voto, Adriana (CERN) ; Dai, Iosifina Panagiota (CERN) ; Oleniuk, Patryk Wojciech (CERN) ; Todd, Benjamin (CERN)
Power converters and their controls electronics are key elements for the operation of the CERN accelerator complex, having a direct impact on its availability. [...]
CERN-ACC-2016-0009.
- 2016. - 11 p.
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2016-01-07
16:55
CTF3 Drive Beam Injector Optimisation / Sanaye Hajari, Shahin (IPM, Tehran ; CERN) ; Shaker, H (IPM, Tehran ; CERN) ; Doebert, S (CERN)
In the Compact Linear Collider (CLIC) the RF power for the acceleration of the Main Beam is extracted from a high-current Drive Beam that runs parallel to the main linac. [...]
CERN-ACC-2016-0002 ; CLIC-Note-1060.
- 2015. - 9 p.
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2016-01-05
10:06
Capacitive Gap Distance Control in Pin-Plane electrode DC Spark Systems at CERN / Korsback, Anders Jaakko (Helsinki U.)
Capacitive inter-electrode gap distance measurement and control has been implemented into DC Spark System II, used by the DC Spark Study to conduct vacuum electrical breakdown experiments as a complement to breakdown experiments in RF accelerating structures. [...]
CERN-ACC-2016-0001 ; CLIC-Note-1053.
- 2015. - 16 p.
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2015-12-17
16:13
BE Department Annual Report 2014 / Collier, Paul (CERN) ; Arduini, Gianluigi (CERN) ; Billen, Ronny (CERN) ; Bruning, Oliver (CERN) ; Garoby, Roland ; Hatziangeli, Eugenia (CERN) ; Jensen, Erk (CERN) ; Jones, Rhodri (CERN) ; Lamont, Mike (CERN) ; Mackney, Anna (CERN)
The Beams Department hosts the Groups responsible for the beam generation, acceleration, diagnostics, controls and performance optimization for the whole CERN accelerator complex. [...]
CERN-ACC-2015-0200.
- 2015. - 71 p.
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2015-12-14
16:06
Energy Deposition and DPA in the Superconducting Links for the HILUMI LHC Project at the LHC Interaction Points / Bignami, Andrea (LASA, Segrate ; Milan Polytechnic) ; Broggi, Francesco (LASA, Segrate ; Milan Polytechnic) ; Santini, C (LASA, Segrate ; Milan Polytechnic) ; Ballarino, Amalia (CERN) ; Cerutti, Francesco (CERN) ; Esposito, Luigi Salvatore (CERN)
In the framework of the upgrade of the LHC machine, the powering of the LHC magnets foresees the removal of the power converters and distribution feedboxes from the tunnel and its location at the surface[1]. The Magnesium Diboride (MgB2) connecting lines in the tunnel will be exposed to the debris from 7+7 TeV p-p interaction. [...]
CERN-ACC-2015-0198.- Geneva : CERN, 2015 - 4 p. Fulltext: PDF;
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.2865-2868

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2015-12-14
15:54
Beam Induced Background Simulation Studies at IR1 with New High Luminosity LHC Layout / Kwee-Hinzmann, Regina (Royal Holloway, U. of London) ; Gibson, Stephen (Royal Holloway, U. of London) ; Bruce, Roderik (CERN) ; Cerutti, Francesco (CERN) ; Esposito, Luigi Salvatore (CERN) ; Lechner, Anton (CERN)
In the High Luminosity LHC (HL-LHC), the collimation system will be upgraded in the high-luminosity experimental regions. Additional protection is planned for the Q4 and Q5 magnets that are located further upstream of the tertiary collimators that protect the inner triplet magnets [...]
CERN-ACC-2015-0197.- Geneva : CERN, 2015 - 4 p. Fulltext: PDF;
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.2184-2187

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2015-12-14
15:45
Simulation of Hollow Electron Lenses as LHC Beam Halo Reducers using Merlin / Rafique, Haroon (Huddersfield U.) ; Barlow, Roger (Huddersfield U.) ; Appleby, Robert Barrie (Manchester U.) ; Tygier, S (Manchester U.) ; Bruce, Roderik (CERN) ; Redaelli, Stefano (CERN)
The Large Hadron Collider (LHC) and its High Luminosity (HL) upgrade foresee unprecedented stored beam energies of up to 700 MJ. The collimation system is responsible for cleaning the beam halo and is vital for successful machine operation. [...]
CERN-ACC-2015-0196.- Geneva : CERN, 2015 - 4 p. Fulltext: PDF;
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.2188-2191

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2015-12-14
15:27
Collimation Cleaning at the LHC with Advanced Secondary Collimator Materials / Quaranta, Elena (CERN) ; Bruce, Roderik (CERN) ; Mereghetti, Alessio (CERN) ; Redaelli, Stefano (CERN) ; Rossi, A (CERN)
The LHC collimation system must ensure efficient beam halo cleaning in all machine conditions. The first run in 2010-2013 showed that the LHC performance may be limited by collimator material-related concerns, such as the contribution from the present carbon-based secondary collimators to the machine impedance and, consequently, to the beam instability. [...]
CERN-ACC-2015-0195.- Geneva : CERN, 2015 - 4 p. Fulltext: PDF;
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.2068-2071

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2015-12-14
15:17
Updated Simulation Studies of Damage Limit of LHC Tertiary Collimators / Quaranta, Elena (CERN) ; Bertarelli, Alessandro (CERN) ; Bruce, Roderik (CERN) ; Carra, Federico (CERN) ; Cerutti, Francesco (CERN) ; Gradassi, Paolo (CERN) ; Lechner, Anton (CERN) ; Redaelli, Stefano (CERN) ; Skordis, Eleftherios (CERN)
The tertiary collimators (TCTs) in the LHC, installed in front of the experiments, in standard operation intercept fractions of 10−3 halo particles. However, they risk to be hit by high-intensity primary beams in case of asynchronous beam dump. [...]
CERN-ACC-2015-0194.- Geneva : CERN, 2015 - 4 p. Fulltext: PDF;
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.2053-2056

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