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 (19d left)

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