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2.
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Experience with Kicker Beam Coupling Reduction Techniques
/ Gaxiola, Enrique ; Bertin, Joel ; Caspers, Friedhelm ; Ducimetière, Laurent ; Kroyer, Tom
SPS beam impedance is still one of the worries for operation with nominal LHC beam over longer periods, once the final configuration will be installed in 2006. Several CERN SPS kickers suffer from significant beam induced ferrite heating. [...]
CERN-AB-2005-024.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1742
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3.
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Performance of the CERN SPS Fast Extraction for the CNGS Facility
/ Gaxiola, Enrique ; Arduini, Gianluigi ; Höfle, Wolfgang ; Roncarolo, Federico ; Vogel, Elmar ; Vossenberg, Eugène B
The SPS LSS4 fast extraction system will serve both the anti-clockwise ring of the LHC and the long baseline neutrino (CNGS) facility. For the latter two extractions spaced by 50 ms, each affecting half of the SPS, are foreseen. [...]
CERN-AB-2005-025.-
Geneva : CERN, 2005 - 4 p.
Fulltext: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1757
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4.
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Beam transfer functions and beam stabilisation in a double RF system
/ Shaposhnikova, Elena ; Bohl, T ; Linnecar, Trevor Paul R
The high intensity proton beam for LHC accelerated in the CERN SPS is stabilised against coupled-bunch instabilities by a 4th harmonic RF system in bunch-shortening mode. Bunch-lengthening mode, which could also be useful to reduce peak line density and alleviate problems from e-cloud and kicker heating, does not give desirable results for beam stability. [...]
CERN-AB-2005-026.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2300
- Please contact the library if you need to access this document.
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6.
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The CARE accelerator R&D programme in Europe
/ Napoly, Olivier ; Aleksan, Roy ; den Ouden, Andres ; Devred, Arnaud ; Garoby, Roland ; Garvey, Terence ; Ghigo, Andrea ; Gschwendtner, Edda ; Losito, Roberto ; Mais, Helmut et al.
CARE, an ambitious and coordinated programme of accelerator research and developments oriented towards high energy physics projects, has been launched in January 2004 by the main European laboratories and the European Commission. This project aims at improving existing infrastructures dedicated to future projects such as linear colliders, upgrades of hadron colliders and high intensity proton drivers. [...]
CERN-AB-2005-028; CARE-CONF-05-003; CARE-CONF-2005-003.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; Fulltext: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.749
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7.
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Recent intensity increase in the CERN accelerator chain
/ Shaposhnikova, Elena ; Arduini, Gianluigi ; Bohl, T ; Chanel, Michel ; Garoby, Roland ; Hancock, Steven ; Hanke, Klaus ; Linnecar, Trevor Paul R ; Steerenberg, R ; Vandorpe, Bernard
Future requests for protons from the physics community at CERN, especially after the start-up of the CNGS experiments in 2006, can only be satisfied by a substantial increase in the SPS beam intensity per pulse. In September 2004 a three-week beam run was dedicated to high intensity; all accelerators in the chain were pushed to their limits to study intensity restrictions and find possible solutions. [...]
CERN-AB-2005-029.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.413
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8.
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30 GHz Power Production in CTF3
/ Wuensch, Walter (CERN) ; Achard, Claude (CERN) ; Braun, Hans Heinrich (CERN) ; Carron, Georges (CERN) ; Corsini, Roberto (CERN) ; Grudiev, Alexei (CERN) ; Heikkinen, Samuli Tapio (CERN) ; Schulte, Daniel (CERN) ; Sladen, Jonathan P H (CERN) ; Syratchev, Igor V (CERN) et al.
One of the major objectives of CTF3 (CLIC Test Facility) is the production of 30 GHz power for the high-gradient testing of CLIC accelerating structures. To this end a dedicated beam line, power generating structure and power transfer line have been designed, installed and commissioned. [...]
CERN-AB-2005-030; CLIC-Note-635.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF;
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1695
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9.
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Dispersion Matching of a Space Charge dominated Beam at Injection into the CERN PS Booster
/ Hanke, Klaus ; Sanchez-Conejo, Jorge ; Scrivens, Richard
In order to match the dispersion at injection into the CERN PS Booster, the optics of the injection line was simulated using two different codes (MAD and TRACE). The simulations were benchmarked versus experimental results. [...]
CERN-AB-2005-032.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3283
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10.
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A New Version of Sixtrack with Collimation and Aperture Interface
/ Robert-Demolaize, Guillaume ; Assmann, R W ; Redaelli, Stefano ; Schmidt, Frank
Simulations of collimation and beam cleaning were so far often performed with simplified computer models. However, the increase in available CPU power has opened the possibility for far more realistic simulations. [...]
CERN-AB-2005-033.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.4084
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11.
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Energy Calibration of the SPS with Proton and Lead Ion Beams
/ Wenninger, Jörg ; Arduini, Gianluigi ; Arimatea, Claudio ; Bohl, T ; Collier, Paul ; Cornelis, Karel
The momentum of the 450 GeV/c proton beam of the CERN Super Proton Synchrotron was determined by a high precision measurement of the revolution frequencies of proton and lead ion beams. To minimize systematic errors the magnetic cycle of the SPS had to be rigorously identical for both beams, and corrections due to Earth tides had to be taken into account. [...]
CERN-AB-2005-034.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1470
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12.
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MAD-X PTC Integration
/ Schmidt, Frank ; Chao Yu Chiu ; Goddard, B ; Jacquet, D ; Kain, V ; Lamont, M ; Mertens, V ; Uythoven, J ; Wenninger, J
MAD-X is CERN's successor for MAD8, a program for accelerator design with a long history. MAD-X is a modular, better maintainable re-write of MAD8 with data structures written in `C'. [...]
CERN-AB-2005-036; PAC-2005-MPPE012.-
Geneva : CERN, 2005 - 4 p.
- Published in : , pp. 1272
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1272
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13.
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2003-2004 Nonlinear Optics Measurements and Modeling for the CERN SPS
/ Faus-Golfe, Angeles ; Arduini, Gianluigi ; Tomas, Rogelio ; Zimmermann, Frank
In 2003 and 2004 nonlinear chromaticity, amplitude detuning, chromatic phase advance, resonance driving terms and off-energy orbits were measured in the CERN SPS at 14 GeV/c and 26 GeV/c, respectively. From the nonlinear chromaticity, the SPS optics model has been updated, by adjusting the strength of nonlinear field errors in dipoles and quadrupoles. [...]
CERN-AB-2005-037.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF;
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1171
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14.
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Final Results from the Novel Multi-turn Extraction Studies at CERN Proton Synchrotron
/ Cappi, R ; Gilardoni, S S ; Giovannozzi, Massimo ; Martini, M ; Métral, E ; Müller, A S ; Steerenberg, R
Recently a novel approach to perform multi-turn extraction was proposed based on beam splitting in the transverse phase space by means of trapping inside stable islands. An experimental campaign was launched since the year 2002 to assess the feasibility of such an extraction scheme at the CERN Proton Synchrotron. [...]
CERN-AB-2005-038.-
Geneva : CERN, 2005 - 6 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.117
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16.
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Operation with a Low Emittance Optics at Anka
/ Huttel, Erhard ; Birkel, Ingrid ; Giovannozzi, Massimo ; Kalefa, Asem B ; Pont, Montserrat ; Wesolowski, Pawel
The electron storage ring at ANKA is designed as a variation of an eightfold DBA structure. Since its commissioning the facility has been operated with zero dispersion in the long straight sections resulting in an emittance of about 100 nmrad. [...]
CERN-AB-2005-040.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2467
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23.
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Automatic Steering for the CTF3 Linear Accelerator
/ Lifshitz, Ronen D (CERN ; Technion, Haifa) ; Schulte, Daniel (CERN)
A system for automatic beam steering has been developed and installed in the CLIC Test Facility - CTF3 linear accelerator at CERN. Using a simple beam position-reading minimisation for trajectory correction, this system has been tested in the 2004 summer run of CTF3. [...]
CERN-AB-2005-048; CARE-CONF-05-036-ELAN; CARE-CONF-2005-036-ELAN; CLIC-Note-631; CARE-ELAN-Document-2005-017.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; Fulltext: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.814
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24.
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Collective Effects in the CLIC Damping Rings
/ Zimmermann, Frank (CERN) ; Agoh, Tomonori (CERN ; KEK, Tsukuba) ; Korostelev, Maxim S (CERN) ; Schulte, Daniel (CERN) ; Yokoya, Kaoru (CERN ; KEK, Tsukuba)
The small emittance, short bunch length, and high current in the CLIC damping ring could give rise to collective effects which degrade the quality of the extracted beam. In this paper, we survey a number of possible instabilities and estimate their impact on the ring performance. [...]
CERN-AB-2005-049; CLIC-Note-632.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1312
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26.
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CERN-PS Main Power Converter Renovation : How to Provide and Control the Large Flow of Energy for a Rapid Cyclic Machine?
/ Bordry, Frederick ; Burnet, Jean Paul ; Völker, F V
The PS accelerator (Proton-Synchrotron) at CERN, which is part of the LHC injector chain, is composed of one hundred magnets connected in series. During a typical acceleration cycle (taking 2.4 seconds), the active power at the magnet terminals varies from plus to minus 40 MW. [...]
CERN-AB-2005-051.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3612
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27.
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LHC Orbit Stabilization Tests at the SPS
/ Andersson, J ; Jensen, L K ; Jones, R ; Steinhagen, Ralph J ; Wenninger, J
The LHC, presently being built at CERN, is the first proton collider that requires a continuous orbit control for safe and reliable machine operation. A realistic test of the orbit feedback system was performed in 2004 using already-present LHC instrumentation and infrastructure on a 270GeV coasting beam in the Super-Proton-Synchrotron. [...]
CERN-AB-2005-052.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.886
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