Applied Physicist in Gas Detectors and Systems (EP-DT-GD-2026-114-GRAP)

Particle detectors operating at CERN's Large Hadron Collider experiments require highly specific, precise, and stable gas mixtures, provided by dedicated and complex gas systems often operating in gas recirculation. Correct and stable mixture composition is a fundamental requirement for the long-term, continuous operation of all detectors.

You will join the Gas Systems team in the EP-DT-GD, responsible for the maintenance, operation and development of the gas systems for particle detectors. The team is responsible for approximately 40 gas systems delivering the required mixtures to the particle detectors across all CERN experiments.

Under certain conditions, particle detectors in the LHC experiments use greenhouse gases (GHGs). CERN is strongly committed to reducing GHG emissions from the operation of particle detectors. The Gas Systems team has identified four strategies to optimise GHG usage: gas recirculation, gas recuperation, new environme...