Source and Linac Physicist

European Organization for Nuclear Research

Location:
Geneva, Switzerland
Grade:
6
Category:
Professional Staff
Posted Jun 19, 2026Apply by Jul 16, 2026 (14d left)
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Lead applied physicist role overseeing the Linac3 ion source at CERN, involving multiple physics domains and beam dynamics. Responsible for daily operations, long-term technical development, and ensuring high-performance delivery of heavy ion beams for CERN's accelerator complex.

Responsibilities

  • Coordinate and participate in the Linac3 ion source assembly and maintenance activities during technical stops and shutdowns to ensure preparation for high-availability operation.
  • Commission and operate the source, tuning it precisely to optimize performance and stability for Linac3 and downstream injectors, ensuring compliance with beam quality specifications for CERN ion runs and tests.
  • Design and implement technical solutions to test and validate the production of different ion species requested for future physics programmes.
  • Be part of the machine expert team, contributing to broader beam operations and participating in the on-call service rotation to ensure 24/7 injector reliable operation.
  • Supervise and mentor a multidisciplinary team including physicists, engineers, technicians and students.
  • Conduct advanced beam measurements and data analysis to characterize Linac3 performance and identify areas for optimisation.
  • Contribute to design studies and execution of upgrades for the CERN ion injector complex, focusing on source technology and low energy beam transport (LEBT).
  • Contribute to other BE-ABP-HSL activities through beam dynamics design, simulations and commissioning for present and future hadron linacs and sources under the section’s responsibility.

Requirements

  • Master's degree or PhD or equivalent relevant experience in the field of Applied Physics, Engineering or a related field.
  • Demonstrated experience of work in the design and/or operation of particle sources for accelerators or in a related scientific field.
  • Hands-on experience with particle sources or other similar scientific equipment, including the use of different materials for equipment design and handling for equipment use in vacuum.
  • Hands-on experience with high-voltage equipment or microwave generators.
  • Experience with multi-particle simulation codes for sources and linacs.
  • Experience with one or more of the following codes would be an asset: IBSIM, SIMION, TRAVEL, TRACEWIN, PARMTEQ, RF-TRACK.
  • Experience of experimental techniques and analysis of beam measurements data.

Skills

  • Particle Source Design
  • Particle Source Operation
  • Applied Physics
  • High-Voltage Equipment Handling
  • Microwave Generator Operation
  • Multi-Particle Simulation
  • Beam Dynamics Studies
  • Beam Measurement Analysis
  • Vacuum Equipment Handling
  • IBSIM
  • SIMION
  • TRAVEL
  • TRACEWIN
  • PARMTEQ
  • RF-TRACK
  • Experimental Techniques
  • Accelerator Physics

Languages

English, French