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13 research outcomes, page 1 of 2
  • publication . Other literature type . Article . 2015
    Open Access
    Authors:
    M. Hansson; B. Aurand; X. Davoine; H. Ekerfelt; K. Svensson; A. Persson; C.-G. Wahlström; O. Lundh;
    Publisher: American Physical Society (APS)
    Project: EC | EUCARD-2 (312453)

    We report on a study on controlled injection of electrons into the accelerating phase of a plasma wakefield accelerator by tailoring the target density distribution using two independent sources of gas. The tailored density distribution is achieved experimentally by ins...

  • publication . Article . Other literature type . 2015
    Open Access English
    Authors:
    Marija Cauchi; R. W. Assmann; A. Bertarelli; F. Carra; F. Cerutti; L. Lari; S. Redaelli; P. Mollicone; N. Sammut;
    Publisher: Soc.
    Project: EC | HILUMI LHC (284404), EC | EUCARD-2 (312453), EC | EUCARD (227579)

    The CERN Large Hadron Collider (LHC) is designed to accelerate and bring into collision high-energy protons as well as heavy ions. Accidents involving direct beam impacts on collimators can happen in both cases. The LHC collimation system is designed to handle the deman...

  • publication . Article . Other literature type . 2013
    Open Access English
    Authors:
    Jacek Sekutowicz; Thorsten Kamps; Robert Nietubyć;
    Publisher: Phys. Rev. ST Accel. Beams
    Project: EC | EUCARD-2 (312453)

    Photocathodes are a limiting factor for the next generation of ultrahigh brightness photoinjectors. We studied the behavior of a superconducting Pb cathode in the cryogenic environment of a superconducting rf gun cavity to measure the quantum efficiency, its spatial dis...

  • publication . Other literature type . Article . 2015
    Open Access
    Authors:
    Michael Benedikt; Daniel Schulte; Frank Zimmermann;
    Project: EC | EUCARD-2 (312453)

    The integrated luminosity, a key figure of merit for any particle-physics collider, is closely linked to the peak luminosity and to the beam lifetime. The instantaneous peak luminosity of a collider is constrained by a number of boundary conditions, such as the availabl...

  • publication . Article . 2015
    Open Access
    Authors:
    Fabio Villa; Enrica Chiadroni; Andrea Mostacci; Riccardo Pompili; Luca Innocenti; Giampiero Di Pirro;
    Publisher: American Physical Society (APS)
    Project: EC | EUCARD-2 (312453)

    Trains of ultrashort electron pulses with THz repetition rate, so-called comblike beams, are assuming an ever growing interest in plasma-based acceleration. In particle-driven plasma wakefield acceleration (PWFA), a train of driver bunches with separation of the order o...

  • publication . Article . Other literature type . 2015
    Open Access
    Authors:
    Kazuhito Ohmi; Frank Zimmermann;
    Publisher: American Physical Society (APS)
    Project: EC | EUCARD-2 (312453), EC | EUCARD (227579)

    The beam-beam limit at hadron colliders manifests itself in the form of degraded luminosity lifetime and/or reduced beam lifetime. In particular, for increasing beam intensity, the nonlinear beam-beam force causes incoherent emittance growth, while the (linear) coupling...

  • publication . Article . 2015
    Open Access English
    Authors:
    J. Bengtsson; I. P. S. Martin; J. H. Rowland; R. Bartolini;
    Publisher: Physical Review Special Topics - Accelerators and Beams
    Project: EC | EUCARD-2 (312453)

    We propose a simple approach to the on-line control of the nonlinear dynamics in storage rings, based on compensation of the nonlinear resonance driving terms using beam losses as the main indicator of the strength of a resonance. The correction scheme is built on the a...

  • publication . Article . 2014
    Open Access English
    Authors:
    Hansson, M.; Senje, L.; Persson, A.; Lundh, O.; Wahlstrom, C. -G.; Desforges, F. G.; Ju, J.; Audet, T. L.; Cros, B.; Dufrenoy, S. Dobosz; ...
    Publisher: HAL CCSD
    Project: EC | EUCARD-2 (312453)

    International audience; The stability of beams of laser wakefield accelerated electrons in dielectric capillary tubes is experimentally investigated. These beams are found to be more stable in charge and pointing than the corresponding beams of electrons accelerated in ...

  • publication . Article . Preprint . 2015
    Open Access
    Authors:
    Kesting, Frederik; Franchetti, Giuliano;
    Publisher: American Physical Society (APS)
    Project: EC | EUCARD-2 (312453)

    Particle-in-cell (PIC) is the most used algorithm to perform self-consistent tracking of intense charged particle beams. It is based on depositing macro-particles on a grid, and subsequently solving on it the Poisson equation. It is well known that PIC algorithms occupy...

  • publication . Article . 2015
    Open Access English
    Authors:
    Kasim, Muhammad Firmansyah; Ratan, Naren; Ceurvorst, Luke; Sadler, James; Burrows, Philip N.; Trines, Raoul; Holloway, James; Wing, Matthew; Bingham, Robert; Norreys, Peter;
    Publisher: Phys. Rev. ST Accel. Beams
    Project: EC | EUCARD-2 (312453)

    One obstacle in plasma accelerator development is the limitation of techniques to diagnose and measure plasma wakefield parameters. In this paper, we present a novel concept for the density measurement of a plasma wakefield using photon acceleration, supported by extens...

13 research outcomes, page 1 of 2
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