CERN Accelerating science

Published Articles

Ultimi arrivi:
2015-04-21
06:21
RF Tuning of the LINAC4 RFQ / Piquet, Olivier (IRFU, Saclay) ; Le Noa, Yannick (IRFU, Saclay) ; Novo, Jorge (IRFU, Saclay) ; Desmons, Michel (IRFU, SPhN, Saclay) ; France, Alain (IRFU, SPhN, Saclay) ; Rossi, Carlo (CERN)
The construction of Linac4, the new 160 MeV CERN H^{−} injector, has started with the goal of improving the LHC injection chain with a new higher energy linac. The low energy front end of Linac4 is based on a 352 MHz, 3-m long Radiofrequency Quadrupole (RFQ) which accelerates the 70 mA, 45 keV H^{−} beam from the ion source to the energy of 3 MeV. [...]
2013 - 3 p. - Published in : (2013) , pp. THPWO004 Fulltext: PDF; External link: JACoW server

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2015-04-21
06:21
The PS Upgrade Programme: Recent Advances / Gilardoni, Simone (CERN) ; Bart Pedersen, Stephane (CERN) ; Bertone, Caterina (CERN) ; Biancacci, Nicolo (CERN) ; Blas, Alfred (CERN) ; Bodart, Dominique (CERN) ; Borburgh, Jan (CERN) ; Chiggiato, Paolo (CERN) ; Damerau, Heiko (CERN) ; Damjanovic, Sanja (CERN) et al.
The LHC Injectors Upgrade project (LIU) has been initiated to improve the performances of the existing injector complex at CERN to match the future requirements of the HL-LHC. In this framework, the Proton Synchrotron (PS) will undergo fundamental changes for many of its main systems: the injection energy will be increased to reduce space-charge effects, the transverse damper will be improved to cope with transverse instabilities the RF systems will be upgraded to accelerate higher beam intensity and brightness. [...]
2013 - 3 p. - Published in : (2013) , pp. WEPEA042 Fulltext: PDF; External link: JACoW server

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2015-04-21
06:21
Study of Laser Wakefield Accelerators as Injectors for Synchrotron Light Sources / Hillenbrand, Steffen (Karlsruhe, Inst. Technol.) ; Judin, Vitali ; Müller, Anke-Susanne (Karlsruhe, Inst. Technol.) ; Aßmann, Ralph (CERN) ; Hillenbrand, Steffen (CERN) ; Jansen, Oliver (Heinrich Heine U., Dusseldorf) ; Pukhov, Alexander (Heinrich Heine U., Dusseldorf)
Short bunch lengths, high beam energies, and small facility footprint make Laser Wakefield Accelerators (LWFA) very interesting as injectors for Synchrotron Light Sources. In this paper, we describe exemplary investigations for the ANKA storage ring..
2013 - 3 p. - Published in : (2013) , pp. WEPEA012 Fulltext: PDF; External link: JACoW server

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2015-04-21
06:20
Prototype Adjustable Permanent Magnet Quadrupoles For CLIC / Shepherd, Ben J A (Daresbury) ; Clarke, James (Daresbury) ; Bartalesi, Antonio (CERN) ; Modena, Michele (CERN) ; Struik, Michael (CERN) ; Collomb, Norbert (Daresbury)
The 42km long Drive Beam Decelerator for the Compact Linear Collider (CLIC) requires over 41,000 quadrupole magnets. ASTeC and CERN are investigating the possibility of permanent magnet quadrupoles (PMQs) to reduce running costs and heat load inside the CLIC tunnel. [...]
2013 - 3 p. - Published in : (2013) , pp. THPME043 Fulltext: PDF; External link: JACoW server

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2015-04-21
06:20
Some Ideas Towards Energy Optimization at CERN / Burckhart, Helfried (CERN) ; Burnet, Jean-Paul (CERN) ; Caspers, Fritz (CERN) ; Doré, Vincent (CERN) ; Gatignon, Laurent (CERN) ; Martel, Christophe (CERN) ; Nonis, Mauro (CERN) ; Tommasini, Davide (CERN)
The paper presents the efforts of CERN to optimize its energy usage. Work is proceeding in 3 areas: accelerators, campus and infrastructure, and re-use of thermal “waste” energy. [...]
2013 - 3 p. - Published in : (2013) , pp. THPFI050 Fulltext: PDF; External link: JACoW server

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2015-04-21
06:20
TREC: Traceability of Radioactive Equipment at CERN / Kepinski, Maciej P (CERN) ; Bruno, Luca (CERN) ; Delamare, Christophe (CERN) ; Mallon Amerigo, Sonia (CERN) ; Martel, Pedro (CERN) ; Petit, Stephan (CERN) ; Schmittler, Tim (CERN) ; Tavlet, Marc J S (CERN) ; Widegren, David (CERN)
Activated accelerator components are frequently removed from service due to changes in design, configuration or maintenance work. Safe and effective management of such components is a necessity. [...]
2013 - 3 p. - Published in : (2013) , pp. THPEA042 Fulltext: PDF; External link: JACoW server

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2015-04-21
06:20
Tune Studies with Beam-Beam Effects in LHC / Paret, Stefan (LBNL, Berkeley) ; Qiang, Ji (LBNL, Berkeley) ; Alemany-Fernandez, Reyes (CERN) ; Buffat, Xavier (CERN) ; Calaga, Rama (CERN) ; Cornelis, Karel (CERN) ; Fitterer, Miriam (CERN) ; Giachino, Rossano (CERN) ; Herr, Werner (CERN) ; Macpherson, Alick (CERN) et al.
In high brightness colliders, the tune spread due to the collisions has a significant impact on the quality of the beams. The impact of the working point on emittance growth and beam lifetime has been observed in beam experiments in LHC. [...]
2013 - 3 p. - Published in : (2013) , pp. TUPME060 Fulltext: PDF; External link: JACoW server

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2015-04-21
06:20
Sub-harmonic Buncher Design for the CLIC Drive Beam Injector / Shaker, Seyd Hamed (CERN ; IPM, Tehran) ; Döbert, Steffen (CERN) ; Leuxe, Raphael (CERN) ; Sanaye Hajari, Shahin (CERN ; IPM, Tehran) ; Dassa, Luca (Brescia U.)
The CLIC (Compact LInear Collider) is based on two beam concept where a high current drive beam provides the energy needed for acceleration of the main beam. The CLIC drive beam accelerator starts with a high current injector using a sophisticated sub-harmonic bunching system. [...]
2013 - 3 p. - Published in : (2013) , pp. TUPME052 Fulltext: PDF; External link: JACoW server

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2015-04-21
06:20
Sub-Harmonic Bunching System of CLIC Drive Beam Injector / Sanaye Hajari, Shahin (CERN ; IPM, Tehran) ; Döbert, Steffen (CERN) ; Shaker, Seyd Hamed (CERN) ; Shaker, Seyd Hamed (IPM, Tehran ; 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 with the main linac. The sub-harmonic bunching system of the drive beam injector has been studied in detail and optimized. [...]
2013 - 3 p. - Published in : (2013) , pp. TUPME047 Fulltext: PDF; External link: JACoW server

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2015-04-21
06:20
Preparations for Beam Tests of a CLIC Damping Wiggler Prototype at ANKA / Bernhard, Axel (KIT, Karlsruhe, IPE) ; Huttel, Erhard (KIT, Karlsruhe, IPE) ; Peiffer, Peter (KIT, Karlsruhe, IPE) ; Bragin, Alexey (Novosibirsk, IYF) ; Mezentsev, Nikolai (Novosibirsk, IYF) ; Syrovatin, Vasily (Novosibirsk, IYF) ; Zolotarev, Konstantin (Novosibirsk, IYF) ; Ferracin, Paolo (CERN) ; Schoerling, Daniel (CERN)
The Compact Linear Collider (CLIC) will require ultra-low emittance electron and positron beams. The targeted emittance will be achieved by radiative damping in the CLIC damping rings. [...]
2013 - 3 p. - Published in : (2013) , pp. TUPME005 Fulltext: PDF; External link: JACoW server

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