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...
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...
Ions for LHC: Towards Completion of the Injector Chain (2008)
Manglunki, Django, Albert, M, Angoletta, M E, Arduini, Gianluigi, Baudrenghien, P, Bellodi, G, ...
The commissioning of CERN's ion injector complex [1] to allow 1.1 PeV collisions of ions in LHC is well under way. After the Low Energy Ion Ring (LEIR) in 2005 [2] and the Proton Synchrotron (PS) in...
IONS FOR LHC: STATUS OF THE INJECTOR CHAIN (2008)
D. Manglunki, A. Beuret, J. Borburgh, Ch. Carli, M. Chanel, L. Dumas, ...
The LHC will, in addition to proton runs, be operated with Pb ions and provide collisions at energies of 5.5 TeV per nucleon pair, i.e. more than 1.1 PeV per event, to experiments. The transformation...
LEIR: TOWARDS THE NOMINAL LEAD ION BEAM (2008)
M. Chanel, M. E Angoletta, V. Baggiolini, P. Belochitskii, A. Beuret, A. Blas, ...
The Low Energy Ion Ring (LEIR) is a central piece for LHC ion operation at CERN, transforming long Linac3 pulses into high density bunches needed for LHC. The first phase of LEIR commissioning...
THE LHC LEAD INJECTOR CHAIN (2008)
A. Beuret, J. Borburgh, A. Blas, H. Burkhardt, C. Carli, M. Chanel, ...
A sizeable part of the LHC physics programme foresees lead-lead collisions with a design luminosity of 10 27 cm-2 s-1. This will be achieved after an upgrade of the ion injector chain comprising...
August 2008IONS FOR LHC: TOWARDS COMPLETION OF THE INJECTOR CHAIN (2008)
J. M. Jowett, V. Kain, D. Küchler, M. Martini, S. Maury, E. Métral, ...
The commissioning of CERN’s ion injector complex [1] to allow 1.1 PeV collisions of ions in LHC is well under way. After the Low Energy Ion Ring (LEIR) in 2005 [2] and the Proton Synchrotron (PS)...
ELENA, a preliminary cost and feasibility study (2007)
Angoletta, M-E, Barnes, M, Beuret, A, Belochitskii, P, Borburgh, J, Bourquin, P, ...
To produce dense pbar beams at very low energies (100-200 keV), a small decelerator ring could be built and installed between the existing AD ring and the experimental area. Phase-space blowup during...
Neutralisation Of The Lear Electron-Cooling Beam: Experimental Results (2007)
Bosser Caspers Chanel, J. Bosser, F. Caspers, M. Chanel, R. Ley, R. Maccaferri, ...
This paper reports on the technological aspects, the measurement techniques and the results. I. INTRODUCTION
L. Durieu, M. Martini, S. Maury, D. Möhl
This paper presents an insertion to reduce the emittance blow-up due to the final stripping (Pb 54+ → Pb 82+) by a factor of four, to ∆ε ∗ ≈ 0.2 µm instead of ≈ 0.8 µm measured at the...
IONS FOR LHC: STATUS OF THE INJECTOR CHAIN (2007)
Manglunki, Django, Beuret, A, Borburgh, J, Carli, C, Chanel, M, Dumas, L, ...
The LHC will, in addition to proton runs, be operated with Pb ions and provide collisions at energies of 5.5 TeV per nucleon pair, i.e. more than 1.1 PeV per event, to experiments. The transformation...
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 LHC Lead Injector Chain (2004)
Beuret, A, Borburgh, J, Blas, A, Burkhardt, H, Carli, Christian, Chanel, M, ...
A sizeable part of the LHC physics programme foresees lead-lead collisions with a design luminosity of 1027 cm-2 s-1. This will be achieved after an upgrade of the ion injector chain comprising...
Optimum Lattice Functions for Electron Cooling (2003)
Carli, Christian, Bosser, Jacques, Chanel, M, Maury, S, Möhl, D, Tranquille, G
Cooling down time measurements carried out at LEAR with 4.2 MeV/nucleon Pb54+ ions and various combinations of lattice functions led to unexpected results. Notably, a finite dispersion was found to...
Belochitskii, P, Bosser, Jacques, Caspers, Friedhelm, Chanel, M, Eriksson, T, Holzer, E B, ...
To provide efficient deceleration and to produce antiproton beam with the required characteristics two different cooler systems (stochastic and electron) are used in operation on the AD (Antiproton...
Two years of AD operation: Experience and progress (2002)
Belochitskii, P, Eriksson, T, Findlay, A, Holzer, E B, MacCaferri, R, Maury, S, ...
The antiproton decelerator (AD) has been running successfully for physics for the past two years. After the end of the commissioning period [1] that finished in 2000, the machine has gradually been...
Bosser, Jacques, Bourquin, P, Brouet, M, Couturier, B, Gelato, G, Giovannozzi, Massimo, ...
This feasibility study reports on a decelerating Radio-Frequency Quadrupole (RFQ) system for post-deceleration of the 100 MeV/c antiproton beam of the AD machine. The corresponding kinetic energy of...
Commissioning and First Operation of the Antiproton Decelerator (AD) (2001)
Belochitskii, P, Bosser, Jacques, Buttkus, J, Carli, Christian, Caspers, Friedhelm, Chohan, V, ...
The Antiproton Decelerator (AD) is a simplified source of antiprotons which provides low energy antiprotons for experiments, replacing four machines: AC (Antiproton Collector), AA (Antiproton...
Optics for the Antiproton Decelerator at CERN (2001)
Beloshitsky, P F, Carli, Christian, Maury, S, Möhl, D
The former Antiproton Collector (AC) at CERN has been transformed into an Antiproton Decelerator (AD) to supply high quality antiproton beams with a momentum of 100 MeV/c (kinetic energy of 5.3 MeV)...
Durieu, L, Martini, M, Maury, S, Möhl, D, Müller, A S
This paper presents an insertion to reduce the emittance blow-up due to the final stripping (Pb54+ ® Pb82+) by a factor of four, to De*»0.2 mm instead of »0.8 mm measured at the present set up....
Status Report on the Antiproton Decelerator (AD) (2000)
CERN's new Antiproton Decelerator (AD) has been delivering a 100 MeV/c antiproton beam to three experiments (ASACUSA, AHENA and ATRAP) since July 10th, 2000. In this status report, we summarise the...
The Antiproton Decelerator (AD) (1999)
To continue an important part of the LEAR physics programme, a simplified scheme for the provision of antiprotons at 100 MeV/c is being implemented. It uses the present target area and the Antiproton...
Stability of cooled beams (1999)
Bosser, Jacques, Carli, Christian, Chanel, M, Madsen, N, Maury, S, Möhl, D, ...
Because of their high density together with extremely small spreads in betatron frequency and momentum, cooled beams are very vulnerable to incoherent and coherent space-charge effects and...
The production of dense lead-ion beams for the CERN LHC (1999)
Bosser, Jacques, Carli, Christian, Chanel, M, MacCaferri, R, Molinari, G, Maury, S, ...
To reach the design luminosity for lead-ions in the LHC, the present Low Energy Antiproton Ring (LEAR) has to be converted into a Low Energy Ion Ring (LEIR). Since the present ECR lead-ion source...
Bosser, Jacques, Carli, Christian, Chanel, M, Hill, C, Lombardi, A M, MacCaferri, R, ...
This report gives the results of a programme of experimental investigations, which were carried out to test stacking of lead ions in a storage ring (the former Low Energy Antiproton Ring, LEAR) at...
The antiproton decelerator: overview (1998)
The Antiproton Decelerator (AD) is a simplified scheme for the provision of antiprotons at 100 MeV/c based on fast extraction. It uses the existing antiproton production target area and the modified...
Electron cooling of PB$^{54+}$ ions in the low energy ion ring (LEIR) (1998)
Bosser, Jacques, Carli, Christian, Chanel, M, MacCaferri, R, Maury, S, Möhl, D, ...
For the preparation of dense bunches of lead ions for the LHC, electron cooling will be essential for accumula tion in a storage ring at 4.2 MeV/u. Tests have been carried out on the LEAR ring...
Results on lead ion accumulation in LEAR for the LHC (1998)
Bosser, Jacques, Broere, J, Carli, Christian, Chanel, M, Hill, C, MacCaferri, R, ...
In order to prepare dense bunches of lead ions for the LHC, it is foreseen to accumulate the 4.2 MeV/u linac beam in a storage ring using electron cooling. A series of experiments has been...
Recent Lead Ion Storage Tests on LEAR (1997)
Bosser, Jacques, Broere, J, Carli, Christian, Chanel, M, Hill, C, Ley, R, ...
The LEAR machine is foreseen to be used as a lead ion accumulator in the injector chain for the LHC. Therefore, to test the principle of Pb54+ ion accumulation in LEAR, at 4.2 MeV/u, a number of...
Beam optics issues for the antiproton decelerator (1997)
Belochitskii, P, Carli, Christian, Eriksson, T, Giannini, R, Maury, S, Möhl, D, ...
The deceleration of the beam down to 0.1 GeV/c in the ring previously used as Antiproton Collector (AC) at 3.5 GeV/c, requires a number of modifications to the lattice. The insertion of the electron...
The antiproton decelerator: AD (1997)
Baird, S A, Berlin, D, Boillot, J, Bosser, Jacques, Brouet, M, Buttkus, J, ...
A simplified scheme for the provision of antiprotons at 100 MeV/c based on fast extraction is described. The scheme uses the existing production target area and the modified Antiproton Collector Ring...
Baird, S A, Boillot, J, Caspers, Friedhelm, Chanel, M, Chohan, V, Eriksson, T, ...
This paper reviews the recent performance of the AAC and LEAR. Activities on the AAC include the successful exploitation of a magnetic horn as an antiproton collector lens and an energy-saving mode...
Combined longitudinal and transverse multiturn injection in a heavy ion accumulator (1997)
Carli, Christian, Maury, S, Möhl, D
After the completion of the antiproton programme, the Low-Energy Antiproton Ring (LEAR) will be able to serve as an accumulator ring for heavy ions in the injector chain of the Large Hadron Collider...
Recent Results on Lead-Ion Accumulation in LEAR for the LHC (1997)
Baird, S A, Bosser, Jacques, Broere, J, Carli, Christian, Chanel, M, Hill, C, ...
To prepare dense bunches of lead ions for the LHC it has been proposed to accumulate the 4.2 MeV/u linac beam in a storage ring with electron cooling. A series of experiments is being performed in...
Design study of the antiproton decelerator: AD (1997)
Baird, S A, Berlin, D, Boillot, J, Bosser, Jacques, Brouet, M, Buttkus, J, ...
Status of the antiproton decelerator: AD (1997)
Baird, S A, Berlin, D, Boillot, J, Bosser, Jacques, Brouet, M, Buttkus, J, ...
An Antiproton Decelerator in the CERN PS Complex (1996)
Riunaud, J P, Autin, Bruno, Baird, S A, Boillot, J, Bosser, Jacques, Brouet, M, ...
The present CERN PS low-energy antiproton complex involves 4 machines to collect, cool, decelerate and supply experiments with up to 1010 antiprotons per pulse and per hour of momenta ranging from...
The antiproton decelerator (AD), a simplified antiproton source (feasibility study) (1995)
Autin, Bruno, Baird, S A, Berlin, D, Boillot, J, Bosser, Jacques, Brouet, M, ...
In view of a possible future physics programme concerning antihydrogen a simplified scheme for the provision of antiprotons of a few MeV has been studied. It uses the present target area and the...
Baird, S A, Bosser, Jacques, Carli, Christian, Chanel, M, Lefèvre, P, Ley, R, ...
By measuring the lifetime of stored beams, the recombination of the ions with cooling electrons was investigated. Rates found are larger than expected for radiative electron capture and significantly...
Neutralisation of the LEAR electron-cooling beam: experimental results (1995)
Bosser, Jacques, Caspers, Friedhelm, Chanel, M, Ley, R, MacCaferri, R, Maury, S, ...
Stability conditions for a neutralised electron cooling beam (1995)
Bosser, Jacques, Maury, S, Meshkov, I N, Möhl, D, Mustafin, E R, Syresin, E M, ...
Critical issues in muon colliders: a summary (1994)
Chattopadhyay, S, Barletta, W A, Maury, S, Neuffer, David V, Ruggiero, A, Sessler, Andrew M
Consolidation of the 400 kA magnetic horn for AAC antiproton production (1994)
Boimond, D, Frauchiger, M, Kurtyka, T, MacCaferri, R, Maury, S, ...
Production of MeV antiprotons (1994)
Baird, S A, Bosser, Jacques, Chanel, M, Lefèvre, P, Ley, R, Manglunki, Django, ...
Neutralisation and servo-system on the LEAR electron cooler (1994)
Bosser, Jacques, Caspers, Friedhelm, Chanel, M, Ley, R, Maury, S, MacCaferri, R, ...
Optimizing the CERN plasma lens for antiproton collection (1992)
Kowalewicz, R, Maury, S, Milner, S, Riege, H, Christiansen, J, ...
The CERN antiproton accumulator complex (AAC): current status and operation for the nineties (1992)
Carron, G, Caspers, Friedhelm, Chohan, V, Maury, S, Metzger, C, Pedersen, F, ...
High intensity options for the CERN heavy ion programme (1990)
Brandt, D, Brouzet, E, Cappi, R, Gareyte, Jacques, Garoby, R, Haseroth, H, ...
Antiproton accumulator complex (AAC) performance (1990)
Autin, Bruno, Carron, G, Caspers, Friedhelm, Chohan, V, Johnson, C D, Jones, E, ...
Beam tests of a 36 mm lithium lens (1990)
Bellone, R, Johnson, C D, Le Dallic, G, Maury, S, Metzger, C, ...
Beam tests of a 2-cm diameter lithium lens (1990)
Fiander, David C, Johnson, C D, Maury, S, Sherwood, T R, Dugan, G F, Hojvat, C, ...
Conducting targets for $\overline{p}$ production of ACOL: past experience and prospects (1990)
Eaton, T W, Hancock, S, Johnson, C D, Jones, E, Maury, S, Milner, S, ...
Recent machine studies and improvements of the CERN antiproton accumulator (1990)
Carron, G, Chohan, V, Eaton, T W, Johnson, C D, Jones, E, Koziol, Heribert, ...
Performance of the CERN antiproton accumulator complex (1990)
Autin, Bruno, Carron, G, Caspers, Friedhelm, Chohan, V, Johnson, C D, Jones, E, ...
The CERN antiproton collector ring (1990)
Autin, Bruno, Battiaz, M, Bell, M, Billinge, Roy, Boucheron, J, Carron, G, ...
Measurements of pi$^{-}$p forward elastic scattering at high energies (1990)
Burq, J P, Chemarin, M, Chevallier, M, Denisov, A S, Ekelöf, T J C, Fay, J, ...
Soft pi-p and pp elastic scattering in the energy range 30 to 345 GeV (1990)
Burq, J P, Chemarin, M, Chevallier, M, Denisov, A S, Doré, C, Ekelöf, T J C, ...
Stability Conditions For A Neutralised Electron Cooling Beam
Bosser Maury Mhl, J. Bosser, S. Maury, D. Möhl, F. Varenne
INTRODUCTION It is known that the maximum current in a neutralised electron cooling system is constrained by transverse instabilities [1,2]. In previous papers Nezlin's theory for completely...