Accelerator Physicist

European Organization for Nuclear Research

Location:
Geneva, Switzerland
Category:
Professional Staff
Posted Aug 19, 2026Apply by Sep 8, 2026 (16d left)
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Contribute to the design, optimisation, and performance evaluation of a potential future collider at CERN, focusing on beam optics development and beam dynamics simulations. Study key effects such as synchrotron radiation, beam-beam interactions, and impedance to support collider design and operational robustness.

Responsibilities

  • Contribute to the conceptual design phase of the study, supporting the development and assessment of the collider design.
  • Propose optimisations of the linear and nonlinear beam optics of the collider, including tune scans and multi-objective optimisation of the dynamic aperture, as well as optimising collider parameters to maximise machine performance and operational robustness.
  • Perform particle tracking studies for the collider across its operating energy range, including the effects of beam-beam interactions, synchrotron radiation, and beam impedance.
  • Investigate key accelerator physics challenges for the collider, drawing on experience from the FCC-ee study.

Requirements

  • You are a national of a CERN Member State or Associate Member State (excluding Pakistani, Lithuanian, Latvian, Cypriot and Croatian nationals due to ceiling limits).
  • By the application deadline, you have a master’s degree with 2 to 6 years of professional experience since graduation or a PhD with a maximum of 3 years of professional experience since graduation.
  • You are not eligible with only a bachelor’s degree.
  • You have never had a CERN fellow or graduate contract before.
  • Knowledge of beam dynamics in synchrotrons and/or storage rings.
  • Experience with some of the key beam dynamics effects relevant to lepton colliders, such as transverse coupling, beam-beam interactions, synchrotron radiation, or beam impedance.
  • Experience in setting up, performing, and interpreting particle tracking simulations for accelerator physics studies.
  • Your studies focused on Physics.
  • Experience with accelerator physics simulation and analysis tools, such as MAD-X, ELEGANT, pyAT, Xsuite, or equivalent software.
  • Experience in running and managing large-scale simulations on high-performance computing (HPC) systems.
  • Strong communication and collaboration skills, with the ability to work effectively in an international, multidisciplinary environment.
  • Ability to present technical and scientific results clearly, both orally and in writing.
  • Spoken and written English, with a commitment to learn French.

Skills

  • Beam Dynamics Studies
  • Synchrotron Radiation
  • Beam-Beam Interactions
  • Transverse Coupling
  • Beam Impedance
  • Particle Tracking Simulations
  • Accelerator Physics
  • MAD-X
  • ELEGANT
  • pyAT
  • Xsuite
  • High Performance Computing
  • Simulation Management
  • Physics
  • Technical Presentations
  • Scientific Writing

Languages

English, French