Job Description
Your responsibilities
As a Radiation Protection Physicist, you will be part of the Occupational Health & Safety and Environmental Protection ( HSE ) Unit, specifically the Accelerators & Sites (AS) section of the HSE Radiation Protection (RP) Group. You will join a dynamic team working on radiation protection aspects of the operation and upgrades of the four Large Experiments at the Large Hadron Collider (LHC): ATLAS, CMS, LHCb, and ALICE.
Specifically, you will:
Perform radiation protection studies using the FLUKA Monte Carlo particle transport code, coupled with SESAME and DORIAN codes, for the LHC Experiments. Focus on Monte Carlo simulations for residual radiation levels during interventions, activation zoning, and radiological classification of detector components.
Document your findings in presentations, technical reports, and journal papers, and present your work at international conferences and workshops.
Be integrated into the operational radiation protection team, participating in operational tasks during Run 3 and Long Shut-down 3 (LS3), gaining experience in particle collider operations.
Benchmark Monte Carlo simulation results with experimental radiation measurements.
Contribute to the development of the FLUKA code by joining the "FLUKA Code Development Support" work package led by the RP group, including contributions to SESAME and DORIAN code development.
Your profile
Skills:
Knowledge of radiation/particle physics.
Knowledge of radiation protection is advantageous.
Experience with Monte Carlo radiation transport codes (e.g., FLUKA, MCNP, PHITS, Geant4).
Programming skills in Python, C++, Fortran.
Ability to work effectively in multidisciplinary and multicultural teams.
Strong interpersonal and communication skills.
Proficiency in spoken and written English, with a willingness to learn French.
Eligibility criteria:
Be a national of a CERN Member or Associate Member State .
Hold a degree in Physics, Nuclear Engineering, or a related field, with either: a Master's degree with 2 to 6 years of post-graduation professional experience;
or a PhD with no more than 3 years of post-graduation professional experience.
Have never previously held a CERN fellow or graduate contract.
Additional Information
Job closing date: 14.07.2025 at 23:59 CEST .
Contract duration: 24 months, with possible extension up to 36 months.
Working hours: 40 hours per week.
Target start date: 01-September-2025.
Position involves:
Work in Radiation Areas.
Interventions in underground installations.
Job reference: HSE-RP-AS-2025-85-GRAP
Field of work: Experimental Physics.
What we offer
A monthly stipend between 6287 and 6911 Swiss Francs (net of tax).
Coverage by CERN's health scheme and membership of the CERN Pension Fund.
Additional allowances and travel expenses depending on circumstances.
30 days of paid leave per year .
On-the-job and formal training, including language courses.
About us
At CERN, physicists and engineers probe the universe's fundamental structure using the world's largest scientific instruments. Learn more at http://home.cern .
Join us in our quest for discovery. Bring your expertise, develop your skills, and work on unique projects with world-class experts.
Begin your CERN Quest. Take Part!
Diversity has been a core value since CERN's founding, central to our success.
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