Accelerator Physicist

Are you an Applied physicist with experience in accelerator and beam dynamics, combining academic excellence and technical coordination skills? Join a dynamic team, studying incoherent beam effects and impact the performance of operating and future synchrotrons. Take Part!

Job Reference: BE-ABP-HSI-2017-36-LD
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Accelerator Physicist in the Beams Department (BE), Accelerator and Beam Physics Group (ABP), Hadron Synchrotron Incoherent effects (HSI) Section.


You will join:


  • The Beams (BE) Department is at the heart of the CERN accelerator complex and hosts the groups responsible for the beam generation, acceleration, diagnostics, controls and performance optimization.
  • The Accelerators and Beam Physics (ABP) group is responsible for beam performance from the source to the Large Hadron Collider (LHC) and carries out Research & Development (R&D) activities on the upgrade of the LHC, its injectors, and future colliders (CLIC and FCC).
  • The Hadron Synchrotron's Incoherent effects (HSI) Section is responsible for theoretical, numerical and experimental studies of incoherent linear and non-linear multi-particle effects, affecting the performance of present and future hadron synchrotrons and of their mitigation.



As an Accelerator Physicist in the Hadron Synchrotron's Incoherent effects Section, you will:


  • Study beam intensity and brightness limitations in the LHC injectors and in particular the Proton Synchrotron Booster (PSB), with an emphasis to space-charge effects for high-intensity and high-brightness beams, both in its current status and for the on-going upgrade studies.
  • Study linear and non-linear beam dynamics (theory, simulations and experiments) including space-charge for improving the intensity, brightness preservation and transmission of the present operational PSB beams and of those foreseen for the LHC injector upgrade (LIU) project.
  • Contribute to the improvement of PSB performance for the fixed target and LHC beams, including taking the role of PSB supervisor.
  • Contribution to the definition of the beam commissioning steps and to the commissioning efforts after the implementation of the changes related to LIU.


Qualification required

PhD/Doctorate in the field of physics or engineering, or equivalent.


Experience and competencies

The experience required for this post is:


  • Demonstrated experience of work in a scientific environment preferably in the design and/or operation of particle accelerators.
  • Experience in accelerator physics with demonstrated ability to compute beam optics (e.g. MADX-PTC).
  • Experience with multi-particle simulation codes.
  • Experience in the application of experimental techniques and analysis of data from beam measurements.


The technical competencies required for this post are:


  • Knowledge of accelerator physics theory.
  • Beam dynamics simulation.
  • Accelerator performance analysis & optimization.
  • Knowledge of transverse beam dynamics.
  • Knowledge of space-charge effects.


The behavioural competencies required for this post are:


  • Communicating effectively: demonstrating a pro-active approach to resolving differences; addressing issues of conflict constructively; expressing opinions, ideas and suggestions with conviction and in a logical/structured manner; keeping to the point.
  • Working in teams: building and maintaining constructive and effective work relationships; working well in groups and readily fitting into a team; participating fully and taking an active role in team activities.
  • Achieving results: having a structured and organised approach towards work; being able to set priorities and plan tasks with results in mind; following through on new ideas and innovations; planning and implementing application.
  • Managing self: taking initiative beyond regular tasks and making things happen; working well autonomously; taking on activities and tasks without prompting.


The language competencies required are:


  • Spoken and written English or French: ability to understand and speak the other language in professional contexts. Ability to draw-up technical specifications and scientific reports and to make oral presentations in at least one of the two languages.


Eligibility conditions

Employing a diverse and international workforce is a CERN core value and central to our success. We welcome applications from all Member States irrespective of gender, age, disability, sexual orientation, race, religion or personal situation.


This vacancy will be filled as soon as possible, and applications should normally reach us no later than 17.04.2017.


By applying here, you allow CERN to consider your application for any position it considers relevant with respect to your profile. Please ensure you update your profile regularly with any relevant information and that you inform the recruitment service if you wish your file to be removed from the database.


Note on Employment Conditions

We offer a limited-duration contract for a period of 5 years. Limited-duration contracts shall terminate by default on their date of expiry. Subject to certain conditions, holders of limited-duration contracts may apply for an indefinite position.


These functions require:


  • Work in radiation areas.
  • Interventions in underground installations.
  • A valid driving licence.
  • Stand-by duty, when required by the needs of the Organization.
  • Work during nights, Sundays and official holidays, when required by the needs of the Organization.


Read more about employment conditions


Benchmark Job Title:
Applied Physicist
Professional Category:
Job Category:
Career Level
Grade 6 or 7
Number of Posts
Duration: 5 year(s)

Application is closed for this job.