Design of the Pi-Mode Structure (PIMS) for Linac4 (2009)
The PIMS will accelerate an H| − | beam from 100 MeV to 160 MeV, the output energy of Linac4. The cell length is constant within each of the 12 seven-cell cavities, but increases from cavity to...
Construction Status of Linac4 (2009)
Gerigk, F, Carli, C, Garoby, R, Hanke, K, Lombardi, A M, MacCaferri, R, ...
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...
Linac4 DTL Prototype: Theoretical Model, Simulation and Low Energy Measurements (2009)
Grespan, F, De Michele, G, Gerigk, F, Ramberger, S
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...
Development of RF System Model for CERN Linac2 Tanks (2009)
Joshi, G, Gerigk, F, Vretenar, M, Kumar, G, Agarwal, V
An RF system model has been created for the CERN Linac2 Tanks. RF systems in this linac have both single and double feed architectures. The main elements of these systems are: RF power amplifier,...
Higher Order Modes in the Superconducting Cavities of the SPL (2009)
Gerigk, F, Schuh, M, Tückmantel, Joachim, Welsch, C P
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...
Assessment of the basic Parameters of the CERN SPL (2008)
Brunner, O, Calatroni, S, Ciapala, Edmond, Eshraqi, M, Garoby, R, Gerigk, F, ...
The construction of a 4GeV Superconducting Proton Linac (the SPL) is now part of the Long Term Plan of CERN, and the construction of Linac4, its low-energy front end, has begun. For mid-2011 the...
Plans for a Superconducting H$^{-}$ LINAC (SPL) at CERN (2008)
Brunner, O, Calatroni, S, Ciapala, Edmond, Garoby, R, Gerigk, F, Lombardi, A M, ...
As part of the upgrade of the LHC injector complex at CERN, the construction of a 4 GeV Superconducting Proton Linac (the SPL, in fact an H- accelerator) is planned to begin in 2012. Depending upon...
Choice of Frequency, Gradient and Temperature for a Superconducting Proton Linac (2008)
Gerigk, F, Brunner, O, Calatroni, S, Ciapala, Edmond, Eshraqi, M, Garoby, R, ...
The construction of a Superconducting Proton Linac is planned at CERN during the next decade. It is foreseen to be constructed in two stages: a low duty cycle, low-power linac (LPSPL) as an injector...
Site Layout of the proposed new Hadrons' Injector Chain at CERN (2008)
Baldy, J L, Benedikt, M, Evans, L, Garoby, R, Gerigk, F, Lindroos, M, ...
The replacement of almost all the LHC injector complex on the Meyrin-site of CERN (Linac2, PSB and PS) is planned within the next 10 years. The layout foreseen for the new accelerators is described...
EU contract number RII3-CT-2003-506395 CARE Conf-04-021-HIPPI (2008)
Benchmarking Linac Codes, A. Franchi, R. Duperrier, G. Franchetti, F. Gerigk, L. Groening, ...
Abstract. In the framework of the HIPPI project a 3D linac code comparison and benchmarking program have been initiated. Particular attention is devoted to the validation of the space charge solvers,...
EU contract number RII3-CT-2003-506395 CARE Conf-04-014-HIPPI (2008)
Beam Dynamics For, F. Gerigk, E. Benedico Mora, A. M. Lombardi, E. Sargsyan, M. Vretenar, ...
This paper discusses the overall beam dynamics concept, presents the optics for the different sections of the machine and compares end-to-end simulations realised with two tracking codes (PATH and...
RF Structures for Linac4 (2007)
Gerigk, F, Alharbi, N, Pasini, M, Ramberger, S, Vretenar, M, Wegner, R
Linac4 is proposed to replace the existing proton linac at CERN (Linac2). Using an increased injection energy of 160 MeV instead of 50 MeV, Linac4 is expected to double the beam intensity in the PS...
160 MeV H- Injection from LINAC4 (2007)
Aiba, M, Carli, C, Cousineau, S, Gerigk, F, Martini, M
The ultimate luminosity (2.3 x 1034 cm-2 s-1) in the LHC can only be reached or even exceeded if a major upgrade of the CERN proton injector complex takes place. The first identified bottleneck...
160 MeV $H^-$ Injection into the CERN PSB (2007)
Weterings, W, Bellodi, G, Borburgh, J, Fowler, T, Gerigk, F, Goddard, B, ...
The H- beam from the proposed LINAC4 will be injected into the four existing rings of the PS Booster at 160 MeV. A substantial upgrade of the injection region is required, including the modification...
Status of the SPL at CERN (2007)
The construction of the Large Hadron Collider at CERN is in its final phase, and commissioning with beam is scheduled to begin before the end of 2007. It is now time to prepare for increasing as much...
Comparison of Options for the Injector of PS2 (2007)
Garoby, R, Benedikt, M, Fabich, A, Gerigk, F
In its report, the SPC Review Panel has highlighted that the construction of a 4 MW SPL has to be motivated by the needs of a well-defined and approved physics programme, and that it should be...
Beam Halo in High-Intensity Hadron Linacs (2007)
Gerigk, F, Henke, H, Hofmann, I
This document aims to cover the most relevant mechanisms for the development of beam halo in high-intensity hadron linacs. The introduction will outline the various applications of high-intensity...
Accelerator design concept for future neutrino facilities (2007)
Neutrino Factory, Neutrino Factory Collaboration, Apollonio, M, Berg, JS, Blondel, A, Bogacz, A, ...
This document summarizes the work of the Accelerator Working Group (AWG) of the International Scoping Study (ISS) of a Future Neutrino Factory and Superbeam Facility. The main goal of the activity...
Linac4 Technical Design Report (2006)
Arnaudon, L, Baudrenghien, P, Baylac, M, Bellodi, G, Body, Y, Borburgh, J, ...
Linac4 is an H- linear accelerator, intended to replace Linac2 as injector to the PS Booster (PSB). By delivering to the PSB a beam at 160 MeV energy, Linac4 will provide the conditions to double the...
The SPL (II) at CERN, a Superconducting 3.5 GeV H- Linac (2006)
Gerigk, F, Baylac, M, Bellodi, G, Benedico-Mora, E, Body, Y, Caspers, F, ...
A revision of the physics needs and recent progress in the technology of superconducting (SC) RF cavities have triggered major changes in the design of a SC H-linac at CERN. With up to 5MW beam...
Design and Development of RF Structures for Linac4 (2006)
Vretenar, M, Alharbi, N, Gerigk, F, Pasini, M, Wegner, R
Linac4 is a new 160 MeV Hâ linac proposed at CERN to replace the 50 MeV Linac2 as injector to the PS Booster, with the goal of doubling its brightness and intensity. The present design foresees...
High gradient tests of an 88 MHz RF cavity for muon cooling (2006)
Rossi, C, Garoby, R, Gerigk, F, Marques-Balula, J, Vretenar, M
The scheme for a Muon Cooling channel developed at CERN in the frame of Neutrino Factory studies foresees the use of 44 and 88 MHz cavities operating at a real-estate gradient as high as 4 MV/m. To...
Linac4, a New Injector for the CERN PS Booster (2006)
Garoby, R, Bellodi, G, Gerigk, F, Hanke, K, Lombardi, A, Pasini, M, ...
The first bottle-neck towards higher beam brightness in the LHC injector chain is due to space charge induced tune spread at injection into the CERN PS Booster (PSB). A new injector called Linac4 is...
Operational Flexibility of the SPL as Proton Driver for Neutrino and Other Applications (2006)
The pulse structure of proton linacs is determined by the linac energy, the RF system, and the maximum duty cycle of the source. Short bursts of protons in the microsecond range can be achieved by...
Progress at the RAL Front End Test Stand (2006)
Back, JJ, Bellodi, G, Clarke-Gayther, MA, Faircloth, DC, Gerigk, F, Jolly, S, ...
The progress in the design of a proton driver front end test stand at the Rutherford Appleton Laboratory (RAL) in the UK is presented. The aim of the test stand is to demonstrate the availability of...
Progress in the Design of LINAC4, the SPL Normal-Conducting Front-End ( (2005)
Gerigk, F, Garoby, R, Hanke, K, Lombardi, A M, Pasini, M, Rossi, C, ...
The SPL is a high-power superconducting H- linac designed to cover the needs of future experimental programs at CERN. Its normal-conducting front-end comprises an RFQ, followed by a low-energy beam...
Beam Halo Formation in Linacs, Theory and Experiment (2005)
A large number of high-intensity linac studies within the last 20 years gave rise to a substantial effort to understand the formation of beam halo in hadron linacs. Even though most experts agree on...
Superconducting proton linac development at CERN (2005)
Hanke, K, Garoby, R, Gerigk, F, Lombardi, A M, Rossi, C, Vretenar, M, ...
A superconducting proton linac (SPL) is considered since a few years as a very interesting accelerator for the future of CERN. This device is planned to serve at the same time as a proton driver for...
LINAC4, A New $H^{-}$ Linear Injector at CERN (2005)
Garoby, R, Gerigk, F, Hanke, K, Lombardi, A M, Rossi, C, Vretenar, M
Linac2, the present injector of the CERN PS Booster, limits the performance of the proton accelerator complex because of its low output energy (50 MeV). To remove this bottleneck, a higher energy...
Beam Dynamics for a New 160 MeV $H^{-}$ Linac at CERN (LINAC4) (2004)
Gerigk, F, Benedico-Mora, A, Lombardi, A M, Sargsyan, E, Vretenar, M
Linac4 is a normal conducting H- linac proposed at CERN to provide a higher proton flux to the CERN accelerator chain. It should replace the existing Linac2 as injector for the PS booster (PSB). The...
Development of a 352 MHz Cell-Coupled Drift Tube Linac Prototype (2004)
Cuvet, Y, Genest, J, Völlinger, C, Vretenar, M, Gerigk, F
At linac energies above 40 MeV, alternative structures to the conventional Drift Tube Linac can be used to increase efficiency and to simplify construction and alignment. In the frame of the R&D...
Design of LINAC4, A New Injector for the CERN Booster (2004)
Garoby, R, Hanke, K, Lombardi, A M, Rossi, C, Vretenar, M, Gerigk, F
A new H- linac (Linac4) is presently under study at CERN. This accelerator, based on normal conducting structures at 352 and 704 MHz, will provide a 30 mA 160 MeV H- beam to the CERN PS Booster...
Verification of a Multipacting Computer Code and Analysis of an RF Test Cavity (2004)
A design study has been carried out at CERN to define layout and parameters of a future neutrino factory. The reference scheme of this neutrino factory incorporates a muon cooling channel, which...
The Study of a European Neutrino Factory Complex (2003)
Gruber, P, Aleksa, Martin, Amand, J F, Autin, Bruno, Baldy, J L, Benedikt, Michael, ...
The Neutrino Factory is a new concept for an accelerator that produces a high-intensity, high-energy beam of electron and muon neutrinos - the ultimate tool for neutrino oscillation studies and the...
Design of a 120 MeV $H^{-}$ Linac for CERN High-Intensity Applications (2002)
The SPL (Superconducting Proton Linac) study at CERN foresees the construction of a 2.2 GeV linac as a high beam-power driver for applications such as a second-generation radioactive ion beam...
Progress in the Design of the SPL, an $H ^{-}$ High-Intensity Linac at CERN (2002)
Bongardt, K, Caspers, Friedhelm, Frischholz, Hans, Gerigk, F, Lombardi, A M, Losito, R, ...
The SPL (Superconducting Proton Linac) is a 4 MW 2.2 GeV H- linac, intended to re-use most of the 352 MHz RF equipment from the decommissioned LEP machine. Injecting into the CERN PS, this linac...
Beam Dynamics Study of a Muon Ionization Cooling Experiment (2002)
Aleksa, Martin, Amand, J F, Garoby, R, Gerigk, F, Hanke, K, Holzer, E B, ...
We present a summary of simulation results on a muon cooling experiment based on 88MHz cavities. The systems studied are subsections of the cooling channel in the CERN reference scheme for a neutrino...
The study of a European Neutrino Factory complex (2002)
Gruber, P, Aleksa, M, Amand, JF, Autin, B, Baldy, JL, Benedikt, M, ...
Cavity design for the CERN muon cooling channel (2001)
The cooling channel of the CERN reference scenario [1] for a possible neutrino factory [2] requires an approximately 200 m long lattice, which provides solenoidal magnetic fields plus longitudinal...
Beam Dynamics of Non-Equipartitioned Beams in the Case of the SPL Project at CERN (2001)
The SPL [1] working group at CERN is studying a 2.2 GeV H- linac, which recuperates a large amount of RF hardware from the now decommissioned LEP at CERN. During the ongoing design effort for an...
Design of the Superconducting Section of the SPL LINAC at CERN (2001)
Gerigk, F, Vretenar, R D, Ryne, M
In order to set up a powerful proton source for a future Neutrino Factory, increasing at the same time the flux of protons available for new and existing facilities, CERN is studying a 2.2 GeV...
The Effect of Phase Slippage in Multicell Cavities on Longitudinal Beam Dynamics (2001)
In modern linear accelerators it is often convenient to use multicell cavities which are designed for a constant particle velocity.These cavities are then employed over a certain velocity range until...
Design of the superconducting section of the SPL Linac at CERN (2001)
Gerigk, F., Vretenar, M., Ryne, Robert D.
In order to set up a powerful proton source for a future Neutrino Factory, increasing at the same time the flux of protons available for new and existing facilities, CERN is studying a 2.2 GeV...
Revised beam dynamics and layout for the superconducting section of the SPL (2001)
Since the publication of the SPL conceptual design report [1] the beam dynamics and the layout of the linac were subject to several hanges. As the studies of the room temperature part of the lina [2]...
Beam Dynamics in the Superconducting Section of the SPL (120 MeV - 2.2 GeV) (2000)
After the decomissioning of LEP-2 a considerable amount of RF hardware becomes available and can be used for the construction of a high current superconducting proton linac [1]. The present design of...
The Higher-Order Mode Dampers of the 400 MHz Superconducting LHC Cavities (1998)
Häbel, E, Rödel, V, Gerigk, F, Zhao, Z T
The accelerating system of the LHC consists of two structures per beam, each composed of four superconducting single-cell cavities. Their higher-order modes have to be damped sufficiently in order to...