CERN Accelerating science

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AB@EPAC2004
55 items
last update: 07 Jun 2014, 11:03
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1.
Beam Loss Monitoring on the CLIC Test Facility 3 / Lefèvre, T (Northwestern U. ; CERN) ; Braun, H (CERN) ; Corsini, R (CERN) ; Gasior, M (CERN) ; Velasco, M (CERN) ; Wood, M (CERN)
With its 4kW average beam power, the CLIC test facility 3 (CTF3) is a machine where the control of beam losses is an important issue. [...]
CERN-AB-2004-092 ; CLIC-Note-611.
- 2004 - 4.
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2.
Beam HALO Monitoring at CTF3 / Lefèvre, T (CERN ; Northwestern U.) ; Braun, H (CERN) ; Bravin, Enrico (CERN) ; Corsini, R (CERN) ; Perrot, Anne Laure ; Schulte, Daniel (CERN)
In high intensity accelerators, the knowledge of the beam halo distribution and its generation mechanisms are important issues. [...]
CERN-AB-2004-091 ; CLIC-Note-610.
- 2004 - 4.
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3.
Limiting High Frequency Longitudinal Impedance of an Inductive Pick-Up by a Thin Metallic Layer / Gasior, M (CERN)
An Inductive Pick-Up (IPU) [1] was developed to measure the position and current of an electron beam of the Third CLIC Test Facility (CTF3) Drive Beam Linac [2]. [...]
CERN-AB-2004-090 ; CLIC-Note-609.
- 2004 - 4.
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4.
New Beam Profile Monitor Based on GEM Detector for the AD Transfer and Experimental Lines / Bosser, Jacques ; Gnanvo, K ; Spanggaard, J ; Tranquille, G
Many multi-wire proportional chambers, (MWPC’s), are installed on the CERN Antiproton Decelerator (AD) transfer and experimental lines. They are used for the steering and profile measurement of the low energy antiproton beam that is extracted at the energy of 5.3 MeV from the AD machine. [...]
CERN-AB-2004-089.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.2472 - Please contact the library if you need to access this document.
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5.
Comparative Transverse Distribution Measurements between the New SPS Rest Gas Ionisation Monitor and the Wire Scanner Monitors / Fischer, C ; Dehning, Bernd (CERN) ; Koopman, J ; Kramer, Daniel ; Roncarolo, F
During the past two years, a new Ionization Profile Monitor was installed and tested in the CERN SPS. In parallel modifications were made on various wire scanner monitors. [...]
CERN-AB-2004-088.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.2478 - Please contact the library if you need to access this document.
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6.
Measurement and Compensation of Second and Third Order Resonances at the CERN PS Booster / Urschütz, Peter
Space charge effects at injection are the most limiting factor for the production of high brightness beams in the CERN PS Booster. [...]
CERN-AB-2004-087.
- 2004. - 4 p.
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7.
Review of the ISOL Method / Lindroos, M
The ISOL technique was invented in Copenhagen over 50 years ago and eventually migrated to CERN where a suitable proton drive beam was available at the Syncho-Cyclotron. [...]
CERN-AB-2004-086.
- 2004. - 6 p.
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8.
Betatron Resonance Studies at the CERN PS Booster by Harmonic Analysis of Turn-by-turn Beam Position Data / Benedikt, Michael ; Carli, Christian ; Chanel, M ; Schmidt, F ; Urschütz, Peter
High brightness and high intensity beams are required from the PS Booster for LHC, CNGS and ISOLDE operation. [...]
CERN-AB-2004-085.
- 2004. - 4 p.
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9.
Base Line Design for a Beta/Beam Neutrino Facility / Benedikt, Michael
The term beta-beam has been coined for the production of pure beams of electron neutrinos or their antiparticles through the decay of radioactive ions circulating in a storage ring. The neutrino source itself consists of a high-energy storage ring (gamma ~150), with long straight sections in line with the experiment(s). [...]
CERN-AB-2004-084.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.542 - Please contact the library if you need to access this document.
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10.
Localizing Impedance Sources from Betatron-phase Beating in the CERN SPS / Arduini, Gianluigi ; Carli, Christian ; Zimmermann, Frank (CERN)
Multi-turn beam-position data recorded after beam excitation can be used to extract the betatron-phase advance between adjacent beam position monitors (BPMs) by a harmonic analysis. Performing this treatment for different beam intensities yields the change in phase advance with current. [...]
CERN-AB-2004-083.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1939 - Please contact the library if you need to access this document.
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11.
Electron-Cloud Build-Up Simulations and Experiments at CERN / Arduini, Gianluigi ; Baglin, V ; Bohl, T (CERN) ; Jenninger, B ; Jiménez, M ; Laurent, Jean Michel ; Schulte, Daniel (CERN) ; Ruggiero, F ; Zimmermann, Frank (CERN)
We benchmark the predictions of electron-cloud buildup simulations against measurements at the CERN SPS. Specifically we compare the electron flux at the wall, electron-energy spectra, heat loads and the spatial distribution of the electrons for two different bunch spacings, with variable magnetic fields, and for several chamber temperatures and associated surface conditions. [...]
CERN-AB-2004-082.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1933 - Please contact the library if you need to access this document.
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12.
Beam Dynamics Challenges for Future Circular Colliders / Zimmermann, Frank (CERN)
The luminosity of hadron colliders rises with the beam intensity, until some limit is encountered, mostly due to head-on and long-range beam-beam interaction, due to electron cloud, or due to conventional impedance sources. Also beam losses caused by various mechanisms may affect the performance. [...]
CERN-AB-2004-081; CARE-Conf-04-033-HHH; CARE-Conf-2004-033-HHH.- Geneva : CERN, 2004 - Streaming video ; 6 transparencies. Talk Information Access to fulltext document: PDF; Fulltext: PDF; External links: Published version from JACoW; Talk 06 Jul 2004
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.83 - Please contact the library if you need to access this document.
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13.
Review and Comparison of Simulation Codes Modeling Electron-Cloud Build Up and Instabilities / Benedetto, Elena ; Ruggiero, F ; Schulte, Daniel (CERN) ; Zimmermann, Frank (CERN) ; Blaskiewicz, M ; Wang, L ; Bellodi, G ; Rumolo, Giovanni ; Ohmi, K ; Win, S S et al.
Several computer codes written at various laboratories are employed for modeling the generation and the consequences of an electron cloud. We review several of these programs, which simulate either the build up of an electron cloud or the instabilities it produces, and we compare simulation results for identical, or similar, input parameters..
CERN-AB-2004-080; CARE-Conf-04-006-HHH; CARE-Conf-2004-006-HHH.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.2502 - Please contact the library if you need to access this document.
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14.
QCD Explorer Based on LHC and CLIC-1 / Schulte, Daniel (CERN) ; Zimmermann, Frank (CERN)
Colliding 7-TeV LHC super-bunches with 75-GeV CLIC bunch trains can provide electron-proton collisions at very high centre-of-mass energies, opening up a new window into QCD. At the same time, this QCD explorer would employ several key components required for both an LHC upgrade and CLIC. [...]
CERN-AB-2004-079; CLIC-Note-608; CERN-LHeC-Note-2005-003 ACC.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.632 - Please contact the library if you need to access this document.
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15.
Adjusting the IP $\beta$ Functions in RHIC / Wittmer, W ; Zimmermann, Frank (CERN) ; Pilat, F ; Ptitsyn, V ; Van Zeijts, J
The beta functions at the IP can be adjusted without perturbation of other optics functions via several approaches. In this paper we describe a scheme based on a vector knob, which assigns fixed values to the different tuning quadrupoles and scales them by a common multiplier. [...]
CERN-AB-2004-078.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1156 - Please contact the library if you need to access this document.
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16.
RF Amplitude Modulation to Suppress Longitudinal Coupled Bunch Instabilities in the SPS / Vogel, E ; Bohl, T (CERN) ; Wehrle, U
Without specific counter measures, the LHC type beam in the SPS suffers from longitudinal coupled bunch instabilities. To get rid of them, the SPS impedance has been decreased in the last years and the operation of a high frequency Landau damping system has been established. [...]
CERN-AB-2004-077.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1924 - Please contact the library if you need to access this document.
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17.
Simulation of Transient Beam-Feedback Interaction and Application to Extraction of CNGS Beam from the SPS / Vogel, E ; Höfle, Wolfgang
For present and future high energy proton accelerators, such as the LHC, transverse feedback systems play an essential role in supplying the physics experiments with high intensity beams at low emittances. We developed a simulation model to study the interaction between beam and transverse feedback system in detail, bunch-by-bunch and turn-by-turn, considering the real technical implementation of the latter. [...]
CERN-AB-2004-076.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.626 - Please contact the library if you need to access this document.
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18.
Proton and Ion Sources for High Intensity Accelerators / Scrivens, R
Future high intensity ion accelerators, including the Spallation Neutron Source (SNS), the European Spallation Source (ESS), the Superconducting Proton Linac (SPL) etc, will require high current and high duty factor sources for protons and negative hydrogen ions. In order to achieve these goals, a comparison of the Electron Cyclotron Resonance, radio-frequency and Penning ion sources, among others, will be made. [...]
CERN-AB-2004-075.- Geneva : CERN, 2004 - Streaming video ; 4 transparencies. Talk Information Access to fulltext document: PDF; External links: Published version from JACoW; Talk 06 Jul 2004
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.103 - Please contact the library if you need to access this document.
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19.
Vibration Measurements at the Swiss Light Source (SLS) / Redaelli, S (CERN) ; Assmann, R W (CERN) ; Böge, M (PSI, SLS) ; Coosemans, Williame (CERN) ; Dehler, M (PSI, SLS) ; Rivkin, L (PSI, SLS)
Vibration measurements have been carried out at the Swiss Light Source (SLS) site as part of a collaboration between the Paul Sherrer Institute (PSI) and the European Organization for Nuclear Research (CERN). [...]
CERN-AB-2004-074 ; CLIC-Note-606.
- 2004 - 4.
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20.
In-situ Vibration Measurements of the CTF2 Quadrupoles / Coosemans, Williame (CERN) ; Redealli, S (CERN)
The Compact LInear Collider (CLIC), presently under study at the European Organization for Nuclear Research (CERN), aims at colliding high energy â€ワnanobeams” at a luminosity of 1035 cm-2s-1. [...]
CERN-AB-2004-073 ; CLIC-Note-607.
- 2004 - 4.
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21.
Studies of Current Dependent Effects at ANKA / Müller, A S ; Birkel, I ; Huttel, E ; Pérez, F ; Pont, M ; Zimmermann, Frank (CERN)
The ANKA electron storage ring is operated at energies between 0.5 and 2.5 GeV. A major requirement for a synchrotron light source, such as ANKA, is to achieve a high beam current. [...]
CERN-AB-2004-072.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.2011 - Please contact the library if you need to access this document.
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22.
Investifation of Scraper Induced Wakefields at ANKA / Müller, A S ; Birkel, I ; Huttel, E ; Pérez, F ; Pont, M ; Zimmermann, Frank (CERN)
The ANKA synchrotron light source operates in the energy range from 0.5 to 2.5 GeV. Typical requirements for light sources include small beam sizes, large lifetimes and high currents to provide the highest possible photon flux. [...]
CERN-AB-2004-071.- 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.2008 - Please contact the library if you need to access this document.
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23.
Intensity Dependent Emittance Transfer Studies at the CERN Proton Synchrotron / Métral, Elias ; Carli, Christian ; Giovannozzi, Massimo ; Martini, M ; Steerenberg, R ; Franchetti, Giuliano (GSI, Darmstadt) ; Hofmann, I ; Qiang, J ; Ryne, Robert D
An intensive study has been undertaken since the year 2002 to understand better the various high-intensity bottlenecks of the CERN Proton Synchrotron machine. One of these limitations comes from the so-called Montague resonance. [...]
CERN-AB-2004-070.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1894 - Please contact the library if you need to access this document.
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24.
High-Intensity and High-Density Charge-Exchange Injection Studies into the CERN PS Booster at Intermediate Energies / Martini, M ; Prior, C R
For the high brilliance LHC ultimate beam and the high intensity CNGS beam, single batch injections into the CERN Proton Synchrotron (PS) will be used to increase the overall machine intensity compared with the present double batch injections. Charge-exchange injection into the PS Booster with a new linac at intermediate energies is thus examined. [...]
CERN-AB-2004-069.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1891 - Please contact the library if you need to access this document.
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25.
Stability Diagrams for Landau Damping with Two-Dimensional Betatron Tune Spread from both Octupoles and Nonlinear Space Charge Applied to the LHC at Injection / Métral, Elias ; Ruggiero, F
The joint effect of space-charge nonlinearities and octupole lenses is discussed for the case of a quasi-parabolic distribution function in the two transverse planes, considering a monochromatic beam and neglecting the longitudinal variation of the transverse space-charge forces. [...]
CERN-AB-2004-067.
- 2004. - 4 p.
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26.
Transverse Resistive Wall Impedance and Wake Function with "Inductive Bypass" / Koschik, A ; Caspers, Friedhelm ; Métral, Elias ; Vos, L ; Zotter, Bruno W
A new physical regime is revealed by the LHC collimators. Small aperture paired with large wall thickness ask for a different physical picture of the resistive wall effect than the classical one. [...]
CERN-AB-2004-065.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1876 - Please contact the library if you need to access this document.
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27.
Simulation of Multi-Bunch Multi-Turn Instabilities in High Energy Proton Rings: Algorithms and Results / Koschik, A
A simulation code to study collective effects in multibunch proton machines has been developed and applied to the CERN SPS and LHC. The 3D simulation program allows the exploration of long-range effects due to resistivewall and HOMs in circular, elliptic and rectangular vacuum chambers also for uneven filling schemes. [...]
CERN-AB-2004-064.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.2490 - Please contact the library if you need to access this document.
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28.
Flexibility, Tolerances, and Beam-Based Tuning of the CLIC Damping Ring / Korostelev, M S (CERN) ; Wenninger, J (CERN) ; Zimmermann, Frank (CERN)
The present design of the CLIC damping ring can easily accommodate anticipated CLIC parameter changes. [...]
CERN-AB-2004-062 ; CLIC-Note-605.
- 2004 - 4.
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29.
New Developments of a Laser Ion Source for Ion Synchrotrons / Kondrashev, S ; Balabaev, A ; Konukov, K ; Sharkov, B Yu ; Shumshurov, A V ; Camut, O ; Chamings, J A ; Kugler, H ; Scrivens, R ; Charushin, A et al.
Laser Ion Sources (LIS) are well suited to filling synchrotron rings with highly charged ions of almost any element in a single turn injection mode. We report the first measurements of the LIS output parameters for Pb27+ ions generated by the new 100 J/1 Hz Master Oscillator - Power Amplifier CO2-laser system. [...]
CERN-AB-2004-061.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1402 - Please contact the library if you need to access this document.
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30.
Electron Model of an FFAG Muon Accelerator / Keil, Eberhard ; Bergy, J S ; Sessler, Andrew M
Parameters are derived for the lattice and RF system of an electron model of a non-scaling FFAG ring for accelerating muons. The model accelerates electrons from about 10 to about 20 MeV, and has about 15 m circumference. [...]
CERN-AB-2004-060.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.587 - Please contact the library if you need to access this document.
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31.
Nonlinear Dynamics Studies at the CERN Proton Synchrotron: Precise Measurements of Islands Parameters for the Novel Multi-Turn Extraction / Giovannozzi, Massimo ; Scaramuzzi, P
Recently, a novel approach to perform multi-turn extraction from a circular accelerator was proposed. It is based on adiabatic capture of particles into islands of transverse phase space generated by nonlinear resonances. [...]
CERN-AB-2004-059.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1861 - Please contact the library if you need to access this document.
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32.
Multiturn Extraction Based on Trapping in Stable Islands at CERN PS: Recent Measurement Advances / Cappi, R ; Gilardoni, S S ; Giovannozzi, Massimo ; Martini, M ; Métral, Elias ; Müller, A S ; Sakumi, A ; 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. During the year 2002, preliminary measurements at the CERN Proton Synchrotron with a low-intensity, singlebunch, proton beam, confirmed the possibility of generating various beamlets starting from a single Gaussian beam. [...]
CERN-AB-2004-058.- Geneva : CERN, 2004 - Streaming video ; 4 transparencies. Talk Information Access to fulltext document: PDF; External links: Published version from JACoW; Talk 07 Jul 2004
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.173 - Please contact the library if you need to access this document.
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33.
First Full Beam Loading Operation with the CTF3 Linac / Corsini, R (CERN) ; Bernard, M (Orsay, LAL) ; Bienvenu, G (Orsay, LAL) ; Braun, H (CERN) ; Carron, G (CERN) ; Ferrari, A (Uppsala U.) ; Forstner, O (CERN) ; Garvey, Terence (Orsay, LAL) ; Geschonke, Günther (CERN) ; Groening, L (Darmstadt, GSI) et al.
The aim of the CLIC (Compact Linear Collider) Study is to investigate the feasibility of a high luminosity, multi-TeV linear e+e- collider. CLIC is based on a two-beam method, in which a high current drive beam is decelerated to produce 30 GHz RF power needed for high-gradient acceleration of the main beam running parallel to it. [...]
CERN-AB-2004-057; SLAC-PUB-10762; CTF-3-NOTE-066; CLIC-Note-604.- Geneva : CERN, 2004 - Streaming video ; 4 transparencies. Talk Information Access to fulltext document: PDF; External links: Published version from JACoW; Talk 05 Jul 2004
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.39 - Please contact the library if you need to access this document.
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34.
Investigation of Space Charge Effects and Intrabeam Scattering for Lead Ions in the SPS / Burkhardt, H ; Manglunki, Django ; Martini, M ; Roncarolo, F ; Rumolo, Giovanni
Space charge effects and intrabeam scattering usually play a minor role in high energy machines like the SPS. They can potentially become a limitation for the heavy ion beams needed for the LHC at the injection plateau in the SPS. [...]
CERN-AB-2004-056.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1846 - Please contact the library if you need to access this document.
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35.
Observation of a Fast Single-Bunch Transverse Instability on Protons in the SPS / Arduini, Gianluigi ; Benedetto, Elena ; Burkhardt, H ; Métral, Elias ; Rumolo, Giovanni
The longitudinal impedance of the SPS has been reduced significantly by hardware modifications over the last years and the threshold for longitudinal instabilities increased accordingly. We now observe a fast transverse instability on high-intensity single bunches of low longitudinal emittance. [...]
CERN-AB-2004-055.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1843 - Please contact the library if you need to access this document.
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36.
Dynamics of the Electron Pinch and Incoherent Tune Shift Induced by Electron Cloud / Benedetto, Elena ; Zimmermann, Frank (CERN)
When a proton bunch passes through an electron cloud, the cloud electrons are attracted by the beam electric field and their density strongly increases near the beam centre. This gives rise to an incoherent proton tune shift, which depends on the longitudinal and radial position within the bunch. [...]
CERN-AB-2004-054.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1834 - Please contact the library if you need to access this document.
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37.
Conceptual Design of a Microwave Confocal Resonator Pick-up / Caspers, Friedhelm ; Ferrari, A ; Lofnes, T ; Syratchev, I V ; Ziemann, Volker
A confocal resonator may be used as a pick-up for frequencies in the multi-GHz region. In this report we present the design, by analytical and numerical methods, of such a device. [...]
CERN-AB-2004-053.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.2750 - Please contact the library if you need to access this document.
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38.
First Results with a Fast Phase and Amplitude Modulator for High Power RF Application / Frischholz, Hans ; Tückmantel, Joachim ; Valuch, D ; Weil, C
In a high energy and high power superconducting proton linac, it is more economical to drive several cavities with a single high power transmitter rather than to use one transmitter per cavity. However, this option has the disadvantage of not permitting individual control for each cavity, which potentially leads to instabilities. [...]
CERN-AB-2004-052.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.959 - Please contact the library if you need to access this document.
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39.
All Digital IQ Servo-System for CERN Linacs / Broere, J ; Kozsar, I ; Garoby, R ; Rohlev, A ; Serrano, J
A VME based control system has been developed and built at CERN for the servo loops regulating the field in linac accelerating structures. It is an all-digital system built on a single VME card, providing digital detection, processing, and modulation. [...]
CERN-AB-2004-051.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.605 - Please contact the library if you need to access this document.
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40.
Energy Loss of a Single Bunch in the CERN SPS / Bohl, T (CERN) ; Hofmann, A ; Linnecar, Trevor Paul R ; Shaposhnikova, Elena ; Tückmantel, Joachim
The dependence of energy loss on bunch length was determined experimentally for a single proton bunch in the SPS at 26 GeV/c. [...]
CERN-AB-2004-050.
- 2004. - 4 p.
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41.
The CERN-SPL Chopper Concept and Final Layout / Caspers, Friedhelm ; Cuvet, Y ; Genest, J ; Haase, M ; Paoluzzi, M ; Teixeira, A
The fast chopper for the CERN SPL (Superconducting Proton Linac) consists of a double meander structure with β = v/c of 8 % printed on an alumina substrate for the deflecting plates. Each chopper unit is 50 cm long and housed in a quadrupole magnet surrounding the vacuum chamber. [...]
CERN-AB-2004-049; CARE-Conf-04-007-HIPPI; CARE-Conf-2004-007-HIPPI.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; Fulltext: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1141 - Please contact the library if you need to access this document.
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42.
A Retrofit Technique for Kicker Beam-Coupling Impedance Reduction / Caspers, Friedhelm ; Gaxiola, E ; Kroyer, T ; Timmins, M ; Uythoven, J ; Kurennoy, S
The reduction of the impedance of operational ferrite kicker structures may be desirable in order to avoid rebuilding such a device. Often resistively coated ceramic plates or tubes are installed for this purpose but at the expense of available aperture. [...]
CERN-AB-2004-048.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1144 - Please contact the library if you need to access this document.
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43.
Beam Quality Preservation in the CERN PS-SPS Complex / Arduini, Gianluigi
The LHC will require beams of unprecedented transverse and longitudinal brightness. Their production imposes tight constraints on the emittance growth in each element of the LHC injector chain, namely the PS-SPS Accelerator Complex. [...]
CERN-AB-2004-047.- Geneva : CERN, 2004 - Streaming video ; 6 transparencies. Talk Information Access to fulltext document: PDF; External links: Published version from JACoW; Talk 06 Jul 2004
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.78 - Please contact the library if you need to access this document.
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44.
Aperture and Stability Studies for the CNGS Proton Beam Line / Herr, Werner ; Meddahi, M
The knowledge of the beam stability at the CNGS target is of great importance, both for the neutrino yield and for target rod resistance against non-symmetric beam impact. Therefore, simulating expected imperfections of the beam line elements and possible injection errors into the CNGS proton beam line, the beam spot stability at the target was investigated. [...]
CERN-AB-2004-045.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1150 - Please contact the library if you need to access this document.
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45.
Trajectory Correction Studies for the CNGS Proton Beam Line ; rev. version / Herr, Werner ; Meddahi, M
The performance of the proposed trajectory correction scheme for the CNGS proton beam line was checked with an advanced simulation program. It was first investigated whether the scheme will be sufficient, and if some correctors or monitors could be suppressed in order to reduce the cost. [...]
CERN-AB-2004-044.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1147 - Please contact the library if you need to access this document.
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46.
Technological Challenges for High-Brightness Photo-Injectors / Suberlucq, Guy (CERN)
Many applications, from linear colliders to free-electron lasers, passing through light sources and many other electron sources, require high brightness electron beams, usually produced by photo-injectors. Because certain parameters of these applications differ by several orders of magnitude, various solutions were implemented for the design and construction of the three main parts of the photo-injectors: lasers, photocathodes and guns. [...]
CERN-AB-2004-043; CLIC-Note-602; CARE-Conf-04-029-PHIN; CARE-Conf-2004-029-PHIN.- Geneva : CERN, 2004 - Streaming video ; 6 transparencies. Talk Information Access to fulltext document: PDF; Fulltext: PDF; External link: Talk 08 Jul 2004
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.64 - Please contact the library if you need to access this document.
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47.
The Design of the Special Magnets for PIMMS/TERA / Borburgh, J ; Crescenti, M ; Fowler, A ; Hourican, M ; Metzmacher, K D ; Sermeus, L
In the framework of a collaboration agreement with the TERA Foundation, CERN provided the design, drawings and engineering specifications for two kickers, one chopper and three bumper magnets as well as three magnetic and two electrostatic septa, power supplies for the electrostatic septa, kickers and bumpers including control electronics for the PIMMS/TERA proton and carbon ion medical synchrotron. The first application will be in the Italian National Centre for Hadrontherapy, to be constructed in Pavia. [...]
CERN-AB-2004-039.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.1639 - Please contact the library if you need to access this document.
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48.
Beam Induced Heating of the SPS Fast Pulsed Magnets / Arduini, Gianluigi ; Bohl, T (CERN) ; Caspers, Friedhelm ; Gaxiola, E H ; Kroyer, T ; Timmins, M ; Vos, L ; Uythoven, J
Fast pulsed magnets with ferrite yokes are used in CERN's SPS accelerator for beam injection, extraction and excitation for tune measurements. The impedance of the ferrite structures can provoke significant beam induced heating, especially for beams with high peak currents as for LHC operation, even beyond the Curie temperature. [...]
CERN-AB-2004-038.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.623 - Please contact the library if you need to access this document.
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49.
Upgrade and Tests of the SPS Fast Extraction Kicker System for LHC and CNGS / Gaxiola, E ; Antoine, A ; Burkel, P ; Carlier, E ; Castronuovo, F ; Ducimetière, L ; Sillanoli, Y ; Timmins, M ; Uythoven, J
A fast extraction kicker system has been installed in the SPS and successfully used in extraction tests in 2003. [...]
CERN-AB-2004-037.
- 2004. - 4 p.
Access to fulltext document - CERN library copies
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50.
Beam Commissioning of the SPS LSS 4 Extraction and the TT40 Transfer Line / Goddard, B ; Collier, Paul ; Lamont, M ; Mertens, V ; Sigerud, K ; Uythoven, J ; Wenninger, J
The new fast extraction system in LSS4 of the SPS and the transfer line TT40 were commissioned with beam in late 2003. The layout and functionality of the main elements are briefly explained, including the various hardware subsystems and the control system. [...]
CERN-AB-2004-036.- Geneva : CERN, 2004 - 4 p. Access to fulltext document: PDF; External link: Published version from JACoW
In : 9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.569 - Please contact the library if you need to access this document.
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51.
Postmortem of the Electronic Publication of the EPAC 2004 Proceedings / Poole, J
The proceedings EPAC'04 were the fifth in the series to be published electronically. [...]
AB-Note-2005-016 ; CERN-AB-Note-2005-016.
- 2005.
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52.

Access to fulltext: PDF;
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53.
LCG persistency framework (CORAL, COOL, POOL): Status and outlook in 2012 / Trentadue, R (CERN) ; Clemencic, M (CERN) ; Dykstra, D (Fermilab) ; Frank, M (CERN) ; Front, D (Weizmann Inst.) ; Kalkhof, A (CERN) ; Loth, A (CERN) ; Nowak, M (Brookhaven) ; Salnikov, A (SLAC) ; Valassi, A (CERN) et al.
The LCG Persistency Framework consists of three software packages (CORAL, COOL and POOL) that address the data access requirements of the LHC experiments in several different areas. The project is the result of the collaboration between the CERN IT Department and the three experiments (ATLAS, CMS and LHCb) that are using some or all of the Persistency Framework components to access their data. [...]
2012
In : Computing in High Energy and Nuclear Physics 2012
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54.
9th European Particle Accelerator Conference - EPAC 2004   5 - 9 Jul 2004  - Lucerne, Switzerland  / Petit-Jean-Genaz, Christine (ed.) (CERN)
Geneva : JACoW, 2004
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55.
Numerical simulation of crystalline ion beams in storage ring / Meshkov, I N ; Möhl, D (CERN) ; Katayama, T ; Sidorin, A ; Smirnov, A Yu ; Syresin, E M ; Trubnikov, G ; Tsutsui, H
The use of crystalline ion beams can increase luminosity in the collider and in experiments with targets for investigation of rare radioactive isotopes. The ordered state of circulating ion beams was observed at several storage rings: NAP-M (Proceedings of the Fourth All Union Conference on Charged Particle Accelerators, Vol. [...]
2004 - Published in : Nucl. Instrum. Methods Phys. Res., A 532 (2004) 376-381
In : International Workshop on Beam Cooling and Related Topics, Yamanashi, Japan, 19 - 23 May 2003, pp.376-381
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