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1.
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First Experience with the LHC Beam Loss Monitoring System
/ Böhlen, T (CERN) ; Dehning, B (CERN) ; Effinger, E (CERN) ; Emery, J (CERN) ; Follin, F (CERN) ; Holzer, E (CERN) ; Jackson, S (CERN) ; Kramer, Daniel (CERN) ; Kruk, G (CERN) ; Le Roux, P (CERN) et al.
The LHC beam loss monitoring system (BLM) consists of about 4000 monitors observing losses at all quadrupole magnets and many other likely loss locations. At the first LHC operation in August and September 2008 all monitors were active and used to observe the losses during the initial beam steerings, at collimators, at the LHC dump and during aperture scans. [...]
CERN-ATS-2009-025.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TH5RFP034
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2.
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First Results from the LHC Beam Instrumentation Systems
/ Bravin, E (CERN)
During the 2008 LHC injection synchronisation tests and the subsequent days with circulating beam, the majority of the LHC beam instrumentation systems were capable of measuring their first beam parameters. This included the two large distributed systems, beam position and beam loss, as well as the scintillating and OTR screens, the fast and DC beam current transformers, the tune monitors and the wire scanners. [...]
CERN-ATS-2009-027.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE4GRC03
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3.
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Precision Beam Position Monitor for EUROTeV
/ Guillot Vignot, F (CERN) ; Søby, L (CERN) ; Podadera-Aliseda, I (CIEMAT Madrid Spain)
In the framework of EUROTeV, a Precision Beam Position Monitor (PBPM) has been designed, manufactured and tested. The new PBPM, based on the inductive BPM presently used in the CERN CLIC Test Facility (CTF3), aims to achieve a resolution of 100 nm and an accuracy of 10 μm in a 6 mm aperture. [...]
CERN-ATS-2009-028.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TH5RFP039
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5.
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On the Continuous Measurement of the LHC Beta-Function - Prototype Studies at the SPS
/ Boccardi, A (CERN) ; Calvo Giraldo, E (CERN) ; Gasior, M (CERN) ; González, J L (CERN) ; Jones, O R (CERN) ; Steinhagen, R J (CERN)
Until now, the continuous monitoring of the LHC lattice has been considered impractical due to tight constraints on the maximum allowed beam excitations and acquisition time usually required for betatron function measurements. As a further exploitation of the Base-Band-Tune (BBQ) detection principle, already widely used for tune diagnostics, a real-time beta-beat measurement prototype has been successfully tested at the CERN SPS and is based on the continuous measurement of the cell-to-cell betatron phase advance. [...]
CERN-ATS-2009-031.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TH5RFP037
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6.
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Determination of the Chromaticity of the TI 8 Transfer Line Based on Kick Response Measurements
/ Fuchsberger, K (CERN) ; Fartoukh, S (CERN) ; Goddard, B (CERN) ; Jones, R (CERN) ; Kain, V (CERN) ; Meddahi, M (CERN) ; Mertens, V (CERN) ; Wenninger, J (CERN)
The 3 km long TI 8 transfer line is used to transfer 450 GeV proton and ion beams from the SPS to LHC collider. As part of a detailed optics investigation program the chromaticity of the transfer line was measured. [...]
CERN-ATS-2009-058.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TH6PFP038
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7.
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Information Management within the LHC Hardware Commissioning Project
/ Bellesia, B (CERN) ; Fernández-Robles, C (CERN) ; Koratzinos, M (CERN) ; Marqueta Barbero, A (CERN) ; Pojer, M (CERN) ; Saban, R (CERN) ; Schmidt, R (CERN) ; Solfaroli Camilloci, M (CERN) ; Szkutnik, J (CERN) ; Vergara Fernández, A (CERN) et al.
The core task of the commissioning of the LHC technical systems was the individual test of the 1572 superconducting circuits of the collider, the powering tests. The two objectives of these tests were the validation of the different sub-systems making each superconducting circuit as well as the validation of the superconducting elements of the circuits in their final configuration in the tunnel. [...]
CERN-ATS-2009-059.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5REP008
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8.
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The LHC Injection Tests
/ Lamont, M (CERN) ; Alemany-Fernandez, R (CERN) ; Bailey, R (CERN) ; Collier, P (CERN) ; Goddard, B (CERN) ; Kain, V (CERN) ; MacPherson, A (CERN) ; Ponce, L (CERN) ; Redaelli, S (CERN) ; Venturini Delsolaro, W (CERN) et al.
A series of LHC injection tests was performed in August and September 2008. The first saw beam injected into sector 23; the second into sectors 78 and 23; the third into sectors 78-67 and sectors 23-34-45. [...]
CERN-ATS-2009-060.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR1GRC05
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9.
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Hysteresis Effects of MCBX Magnets on the LHC Operation in Collision
/ Sammut, N (CERN) ; Giloux, C (CERN) ; Lamont, M (Malta U.) ; Venturini Delsolaro, W ; White, S (CERN)
The Large Hadron Collider beams are brought into collision by superconducting orbit corrector magnets which generate the parallel separation and crossing angles at the interaction points during the different cycle phases. Unfortunately, the magnetic field errors that result from hysteresis effects in the operation region of these magnets lead to unwanted orbit perturbations. [...]
CERN-ATS-2009-062.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.MO6PFP050
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10.
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Operational Experience with a LHC Collimator Prototype in the CERN SPS
/ Redaelli, S (CERN) ; Aberle, O (CERN) ; Assmann, R (CERN) ; Dehning, B (CERN) ; Bracco, C (CERN) ; Jonker, M (CERN) ; Masi, A (CERN) ; Losito, R (CERN) ; Sapinski, M (CERN) ; Weiler, T (CERN) et al.
A full-scale prototype of the Large Hadron Collider (LHC) collimator was installed in 2004 in the CERN Super Proton Synchrotron (SPS) and has been extensively used for beam tests, for control tests and also LHC simulation benchmarking during four years of operation. This operational experience has been extremely valuable in view of the final LHC implementation as well as for estimating the LHC operational scenarios, most notably to establish procedures for the beam-based alignment of the collimators with respect to the circulating beam. [...]
CERN-ATS-2009-063.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE6RFP023
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11.
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First Beam Based Aperture Measurements in the Arcs of the CERN Large Hadron Collider
/ Redaelli, S (CERN) ; Agapov, I (CERN) ; Calaga, R (CERN) ; Dehning, B (CERN) ; Giovannozzi, M (CERN) ; Roncarolo, F (CERN) ; Tomás, R (CERN)
The LHC injection tests performed in August and early September 2008 in preparation for the circulating beam operation provided the first opportunity to measure with beam the mechanical aperture in two LHC sectors (2-3 and 7- 8). The aperture was probed by exciting free oscillations and local orbit bumps of the injected beam trajectories. [...]
CERN-ATS-2009-064.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE6PFP019
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12.
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Final Implementation and Performance of the LHC Collimator Control System
/ Redaelli, S (CERN) ; Assmann, R (CERN) ; Masi, A (CERN) ; Losito, R (CERN)
The 2008 collimation system of the CERN Large Hadron Collider (LHC) included 80 movable collimators for a total of 316 degrees of freedom. Before beam operation, the final controls implementation was deployed and commissioned. [...]
CERN-ATS-2009-065.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5REP007
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13.
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High Intensity Beams from the CERN PS Booster
/ Mikulec, B (CERN) ; Chanel, M (CERN) ; Findlay, A (CERN) ; Hanke, K (CERN) ; Quatraro, D (CERN) ; Rumolo, G (CERN) ; Tan, J (CERN) ; Tomás, R (CERN)
The CERN Proton Synchrotron Booster (PSB) has been running for more than 30 years. Originally designed to accelerate particles from 50 to 800 MeV, later upgradedto an energy of 1 GeV and finally 1.4 GeV, it is steadily being pushed to its operational limits. [...]
CERN-ATS-2009-069.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TU6PFP087
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14.
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LHC Beams from the CERN PS Booster
/ Mikulec, B (CERN) ; Blas, A (CERN) ; Carli, C (CERN) ; Findlay, A (CERN) ; Hanke, K (CERN) ; Rumolo, G (CERN) ; Tan, J (CERN)
The CERN PS Booster (PSB) produces a variety of beam flavours for the LHC. While the nominal LHC physics beams require 6 Booster bunches with intensities up to 1.6·1012 protons per bunch, during the LHC commissioning single bunch beams with variable intensities as low as 5·109 protons have to be provided reproducibly. [...]
CERN-ATS-2009-070.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TU6PFP086
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15.
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Luminosity Optimization and Calibration in the LHC
/ Lamont, M (CERN) ; Alemany-Fernandez, R (CERN) ; Burkhardt, H (CERN) ; White, S (CERN)
The ability of a particle collider to produce the required number of events, the luminosity, is usually used to size its performances. As demonstrated in many accelerators optimizing and calibrating the luminosity can be done using the Van Der Meer method which consist of shifting one beam with respect to the other while recording the event rate. [...]
CERN-ATS-2009-071.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE6PFP015
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18.
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Linac4 Beam Characterization before Injection into the CERN PS Booster
/ Mikulec, B (CERN) ; Bellodi, G (CERN) ; Eshraqi, M (CERN) ; Hanke, K (CERN) ; Hermanns, T (CERN) ; Lombardi, A M (CERN) ; Raich, U (CERN)
Construction work for the new CERN linear accelerator, Linac4, started in October 2008. Linac4 will replace the existing Linac2 and provide an H− beam at 160 MeV (as opposed to the present 50 MeV proton beam) for injection into the CERN PS Booster (PSB). [...]
sLHC-PROJECT-Report-0023; CERN-sLHC-PROJECT-Report-0023.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5REP055
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19.
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Development of RF System Model for CERN Linac2 Tanks
/ Joshi, G (Bhabha Atomic Res. Ctr.) ; Gerigk, F (CERN) ; Vretenar, M (CERN) ; Kumar, G (Indian Inst. Tech., Mumbai) ; Agarwal, V (Indian Inst. Tech., Mumbai)
An RF system model has been created for the CERN Linac2 Tanks. RF systems in this linac have both single and double feed architectures. [...]
CERN-ATS-2009-110.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE5PFP065
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20.
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Trapped Mode Study in the LHC Rotatable Collimator
/ Xiao, L (SLAC) ; Ng, C K (SLAC) ; Smith, J C (SLAC) ; Caspers, F (CERN)
A rotatable collimator is proposed for the LHC phase II collimation upgrade. When the beam crosses the collimator, trapped modes will be excited that result in beam energy loss and collimator power dissipation. [...]
CERN-ATS-2009-109.-
Geneva : CERN, 2010 - 4 p.
Fulltext: PDF; Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TH5PFP089
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21.
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Feedback Techniques and SPS Ecloud Instabilities - Design Estimates
/ Fox, J D (SLAC) ; Mastorides, T (SLAC) ; Ndabashimiye, G (SLAC) ; Rivetta, C H (SLAC) ; Van Winkle, D (SLAC) ; Xu, J (SLAC) ; Byrd, J M (LBNL) ; Vay, J L (BNL) ; Höfle, Wolfgang (CERN) ; Rumolo, G (CERN) et al.
The SPS at high intensities exhibits transverse single-bunch instabilities with signatures consistent with an Ecloud driven instability. While the SPS has a coupled-bunch transverse feedback system, control of Ecloud-driven motion requires a much wider control bandwidth capable of sensing and controlling motion within each bunched beam. [...]
CERN-ATS-2009-108.-
Geneva : CERN, 2010 - 4 p.
Fulltext: PDF; Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE5PFP098
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22.
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Initial Results of Simulation of a Damping System for Electron Cloud-Driven Instabilities in the CERN SPS
/ Thompson, J R (Cornell U.) ; Byrd, J M (LBL, Berkeley) ; Höfle, Wolfgang (CERN) ; Rumolo, G (CERN)
Single and multi-bunch instabilities on bunch trains driven by electron clouds have been observed in the CERN SPS for some years. In this paper, we present initial results to implement a damping system in a computer simulation of a single bunch vertical instability using the HEADTAIL code. [...]
CERN-ATS-2009-107.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5RFP076
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23.
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Status of Schottky Diagnostics in the ANKA Storage Ring
/ Caspers, Friedhelm (CERN) ; Sonnad, K G (Karlsruhe, Forschungszentrum) ; Birkel, I (Karlsruhe, Forschungszentrum) ; Casalbuoni, S (Karlsruhe, Forschungszentrum) ; Huttel, E (Karlsruhe, Forschungszentrum) ; Smale, N J (Karlsruhe, Forschungszentrum) ; Hiller, N (Karlsruhe U.) ; Müller, A S (Karlsruhe U.) ; Weigel, R (Stuttgart, Max Planck Inst.)
The status of longitudinal and transverse Schottky observation systems for the synchrotron light source ANKA is presented. ANKA regularly operates in a dedicated low alpha mode with short bunches for the generation of coherent THz radiation. [...]
CERN-ATS-2009-106.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TH6PFP076
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26.
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Operational Experience with First Circulating Beam in the LHC
/ Lamont, M (CERN) ; Alemany-Fernandez, R (CERN) ; Bailey, R (CERN) ; Collier, P (CERN) ; Goddard, B (CERN) ; Kain, V (CERN) ; MacPherson, A (CERN) ; Ponce, L (CERN) ; Redaelli, S (CERN) ; Venturini Delsolaro, W (CERN) et al.
Following a series of injection tests, the first attempts to pass beam around both directions of the LHC were successful and led rapidly to circulating beam in the counter clockwise direction (beam 2) and many turns of beam 1. Unfortunately the beam commissioning was curtailed by the incident in sector 34. [...]
CERN-ATS-2009-061.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TU6PFP057
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28.
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Reference Measurements of the Longitudinal Impedance in the CERN SPS
/ Shaposhnikova, E (CERN) ; Bohl, T (CERN) ; Damerau, H (CERN) ; Hanke, K (CERN) ; Linnecar, T (CERN) ; Mikulec, B (CERN) ; Tan, J (CERN) ; Tückmantel, Joachim (CERN)
First reference measurements of the longitudinal impedance were made with beam in the SPS machine in 1999 to quantify the results of the impedance reduction programme, completed in 2001. The 2001 data showed that the low-frequency inductive impedance had been reduced by a factor 2.5 and that bunch lengthening due to the microwave instability was absent up to the ultimate LHC bunch intensity. [...]
CERN-ATS-2009-067.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5RFP056
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30.
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A New CERN PS Transverse Damper
/ Blas, A (CERN) ; Belleman, J M (CERN) ; Benedetto, E (CERN) ; Caspers, Friedhelm (CERN) ; Glenat, D C (CERN) ; Louwerse, R (CERN) ; Martini, M (CERN) ; Métral, E (CERN) ; Rossi, V (CERN) ; Sladen, J (CERN)
Since 1999 the PS has been operated without active transverse damping thanks to an increase of the coupling between the transverse planes and the reduction of injection steering errors. Although the LHC requirements are met by these means, a new transverse feedback system has been commissioned to reinforce the robustness of operation and avoid the blow-up generated by residual injection steering errors. [...]
CERN-ATS-2009-074.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE5PFP075
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31.
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Experimental Studies of Carbon Coatings as Possible Means of Suppressing Beam Induced Electron Multipacting in the CERN SPS
/ Shaposhnikova, E N (CERN) ; Arduini, Gianluigi ; Axensalva, J (CERN) ; Benedetto, E (CERN) ; Calatroni, S (CERN) ; Chiggiato, P (CERN) ; Cornelis, K (CERN) ; Costa-Pinto, P (CERN) ; Henrist, B (CERN) ; Jiménez, J M (CERN) et al.
Electron cloud build-up is a major limitation for the operation of the SPS with LHC beam above nominal intensity. These beams are envisaged in the frame of the LHC luminosity upgrade and will be available from the new injectors LPSPL and PS2. [...]
CERN-ATS-2009-075.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.MO6RFP008
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32.
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Ringing in the Pulse Response of Long and Wideband Coaxial Transmission Lines due to Group Delay Dispersion
/ Kotzian, G (CERN) ; Caspers, Friedhelm (CERN) ; Federmann, S (CERN) ; Höfle, Wolfgang (CERN) ; Kotzian, G (TUG SPSC) ; de Maria, R (BNL)
In particle accelerators coaxial cables are commonly used to transmit wideband beam signals covering many decades of frequencies over long distances. Those transmission lines often have a corrugated outer and/or inner conductor. [...]
CERN-ATS-2009-076.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TH5RFP033
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33.
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Stabilizing Effect of a Double-Harmonic RF System in the CERN PS
/ Bhat, C M (Fermilab) ; Caspers, Friedhelm (CERN) ; Damerau, H (CERN) ; Hancock, S (CERN) ; Mahner, E (CERN) ; Zimmermann, F (CERN)
Motivated by the discussions on scenarios for LHC upgrades, beam studies on the stability of flat bunches in a double-harmonic RF system have been conducted in the CERN Proton Synchrotron (PS). Injecting nearly nominal LHC beam intensity per cycle, 18 bunches are accelerated on harmonic h=21 to 26 GeV with the 10 MHz RF system. [...]
CERN-ATS-2009-077.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5RFP058
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34.
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First Beam Commissioning of the 400 MHz LHC RF System
/ Butterworth, A C (CERN) ; Angoletta, M E (CERN) ; Arnaudon, L (CERN) ; Baudrenghien, P (CERN) ; Bohl, T (CERN) ; Brunner, O (CERN) ; Ciapala, Edmond (CERN) ; Dubouchet, F (CERN) ; Höfle, Wolfgang (CERN) ; Linnecar, T P R (CERN) et al.
Hardware commissioning of the LHC RF system was successfully completed in time for first beams in LHC in September 2008. All cavities ware conditioned to nominal field, power systems tested and all Low level synchronization systems, cavity controllers and beam control electronics were tested and calibrated. [...]
CERN-ATS-2009-078.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE5PFP074
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35.
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Higher Order Modes in the Superconducting Cavities of the SPL
/ Gerigk, F (CERN) ; Schuh, M (CERN) ; Tückmantel, Joachim (CERN) ; Welsch, C P (KIP)
In this paper is analysed the influence of Higher Order Modes (HOM) on the operation of the superconducting linac section of the SPL, the Superconducting Proton Linac being designed at CERN. For this purpose, the characteristics of the HOMs in the 2 different beta families (0.65, 0.92 both at 704 MHz) of the SPL are calculated to estimate their effect on the cryogenic system and on the beam stability. [...]
CERN-ATS-2009-088.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5REP053
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36.
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A Novel Technique for Mitigating Multipactor by Means of Magnetic Surface Roughness
/ Caspers, Friedhelm (CERN) ; Montesinos, E (CERN) ; Boria, V E (DCOM iTEAMUPV) ; Bruns, W (WBFB) ; Galan, L (UAM) ; Gimeno, B (UVEG) ; Montero, I (CSIC) ; Raboso, D (ESA ESTEC) ; Vicente, C (aurorasat)
Multipactor phenomena which are closely linked to the SEY (secondary electron yield)can be mitigated by many different methods including groves in the metal surface as well as using electric or magnetic bias fields. However frequently the application of global magnetic or electric bias field is not practicable considering the weight and power limitations on-board satellites. [...]
CERN-ATS-2009-089.-
Geneva : CERN, 2010 - 5 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TU5PFP011
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38.
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Construction Status of Linac4
/ Gerigk, F (CERN) ; Carli, C (CERN) ; Garoby, R (CERN) ; Hanke, K (CERN) ; Lombardi, A M (CERN) ; MacCaferri, R (CERN) ; Maury, S (CERN) ; Rossi, C (CERN) ; Vretenar, M (CERN)
The civil engineering works of the Linac4 linear accelerator at CERN started in October 2008 and regular machine operation is foreseen for 2013. Linac4 will accelerate H−ions to an energy of 160 MeV for injection into the PS Booster (PSB). [...]
sLHC-PROJECT-Report-0027; CERN-sLHC-PROJECT-Report-0027.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5REP052
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39.
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Linac4 DTL Prototype: Theoretical Model, Simulation and Low Energy Measurements
/ Grespan, F (CERN) ; De Michele, G (CERN) ; Gerigk, F (CERN) ; Ramberger, S (CERN)
A one meter long hot prototype of the LINAC4 DTL, built in a collaboration with INFN Legnaro, was delivered to CERN in 2008. It was then copper plated at CERN is and is presently prepared for high-power testing at the CERN test stand in SM18. [...]
sLHC-PROJECT-Report-0028; CERN-sLHC-PROJECT-Report-0028.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5REP054
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Comparison of Enamel and Stainless Steel Electron Cloud Clearing Electrodes Tested in the CERN Proton Synchrotron
/ Caspers, Friedhelm (CERN) ; Kroyer, K (Fraunhofer Institute for Solar Energy Systems) ; Mahner, C (CERN) ; Wendel, JC (Wendel GmbH)
During the 2007 run with the nominal LHC proton beam, electron cloud has been clearly identified and characterized in the PS using a dedicated setup with shielded button-type pickups. Efficient electron cloud suppression could be achieved with a stainless steel stripline-type electrode biased to negative and positive voltages up to ± 1 kV. [...]
CERN-ATS-2009-129.-
Geneva : CERN, 2010 - 4 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5RFP051
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