Christian Carli

European Organization for Nuclear Research

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G. Tranquille

European Organization for Nuclear Research

M. Chanel

European Organization for Nuclear Research

S. Maury

European Organization for Nuclear Research

S. Hancock

European Organization for Nuclear Research

Wolfgang Bartmann

European Organization for Nuclear Research

Heiko Damerau

European Organization for Nuclear Research

E. Métral

European Organization for Nuclear Research

Sergio Pasinelli

European Organization for Nuclear Research

S. Gilardoni

European Organization for Nuclear Research

M. Vretenar

European Organization for Nuclear Research

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European Organization for Nuclear Research

448

A. Alikhanyan National Laboratory

Istituto Nazionale di Fisica Nucleare

Fermi National Accelerator Laboratory

Institute of High Energy Physics

Istituto Nazionale di Fisica Nucleare, Sezione di Roma I

University of Antwerp

Brookhaven National Laboratory

Sapienza University of Rome

Centre National de la Recherche Scientifique

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Preliminary results of linear optics from orbit response in the CERN PSB

Meghan McAteer M. Aiba Christian Carli Rogelio Tomás B. Mikulec

Orbit (dynamics)

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The production of dense lead-ion beams for the CERN LHC

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (2000)

J. Bosser Christian Carli M. Chanel R. Maccaferri G. Molinari

Lead (geology)

10.1016/s0168-9002(99)01120-1

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Ions for LHC: Status of the injector chain

Prepared for (2007)

D. Manglunki J. Borburgh Sergio Pasinelli E. Mahner T. Fowler

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 of CERN’s ion injector complex (Linac3-LEIR-PS-SPS) to allow collision of ions in LHC in 2008 is well under way. The status of these modifications and the latest results of commissioning will be presented. The remaining challenges are reviewed.

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Measurement of the lifetime of Pb52+, Pb53+ and Pb54+ beams at 4.2 MeV per nucleon subject to electron cooling

Physics Letters B (1995)

S. Baird J. Bosser Christian Carli M. Chanel P Lefèvre

Electron cooling

Radiative Cooling

10.1016/0370-2693(95)01164-l

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Citations (39)

ELENA: Bright Perspectives for Low Energy Antiproton Physics

Nuclear Physics News (2022)

Christian Carli Davide Gamba C. Malbrunot L. Ponce S. Ulmer

Antiproton

Low energy

10.1080/10619127.2022.2100646

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LEIR: TOWARDS THE NOMINAL LEAD ION BEAM

M. Chanel V. Baggiolini P. Belochitskii A. Blas J. Borburgh

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 successfully attained its goal of providing the so-called “early ion beam” (one bunch of 2.25 10 8 Lead ions) needed for the first LHC ion runs with reduced luminosity. Studies in view of generating the beam needed for nominal ion operation (2 bunches of 4.5 10 8 ions in LEIR) were carried out in parallel with the setting-up of the early beam in the accelerators further downstream in the LHC injector chain. The main characteristics of the machine using a new state of the art electron cooler are discussed together with the latest results.

Bunches

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Simulation of Multiturn Injection into LEAR in View of Ion Accumulation

Christian Carli

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Fifty years of the CERN Proton Synchrotron : Volume 1

R. Steerenberg Kurt Hübner M. Martini Thomas Zickler M. Giovannozzi

This report sums up in two volumes the first 50 years of operation of the CERN Proton Synchrotron. After an introduction on the genesis of the machine, and a description of its magnet and powering systems, the first volume focuses on some of the many innovations in accelerator physics and instrumentation that it has pioneered, such as transition crossing, RF gymnastics, extractions, phase space tomography, or transverse emittance measurement by wire scanners. The second volume describes the other machines in the PS complex: the proton linear accelerators, the PS Booster, the LEP pre-injector, the heavy-ion linac and accumulator, and the antiproton rings.

Proton Synchrotron

Booster (rocketry)

Super Proton Synchrotron

Antiproton

10.5170/cern-2011-004

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Geometric phase effect study in electric dipole moment rings

Physical Review Accelerators and Beams (2022)

Christian Carli Malek Haj Tahar

Several proposals to measure a possible small electric dipole moment (EDM) of charged particles aligned with the spin and the well-known magnetic dipole moment (MDM) are based on the concept to circulate bunches with an initial polarization in the horizontal plane and to observe the buildup of a vertical spin component caused by the EDM. Most proposals aim at operating the ring with ``frozen spin,'' such that, with an MDM only, the spin remains aligned with the trajectory. The signature of a finite EDM is the buildup of a vertical spin component. Machine imperfections may lead as well to a vertical spin buildup, which can be misinterpreted as an EDM and thus limit the sensitivity of the experiment. For that reason, a good understanding of spin dynamics is mandatory to estimate and limit such systematic errors in the measurement. In this paper, a coordinate system attached to the trajectory is introduced to expand the spin. This is of particular interest for fully electric EDM rings operated at the ``magic energy'' to satisfy the frozen spin condition. The procedure is used for a straightforward analysis of geometric phase and other second order effects, which limit the possible sensitivity, i.e., the smallest EDM which can be detected in presence of systematic effects.

10.1103/physrevaccelbeams.25.064001

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Optical design of a beam delivery system using a rotator

Michael Benedikt Christian Carli

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Citations (12)