PhD Student in Plasma Physics | PhD student (all genders) 65%

GSI Helmholtzzentrum für Schwerionenforschung GmbH

Darmstadt, Hessen, Deutschland
Published Feb 16, 2026
Part-time
Fixed-term

Job Summary

This role is part of a DFG-funded project at the GSI Helmholtz Centre for Heavy Ion Research, focusing on Direct Laser Acceleration (DLA) of electrons using the PHELIX high-power laser facility. As a PhD student, you will be responsible for developing and implementing diagnostics to measure electron energy and angular distribution, specifically designing scintillator-based spectrometers for high-repetition operations. Your day-to-day work involves planning and conducting experiments with low-density foam targets, investigating secondary photon and neutron sources, and performing Monte Carlo simulations to analyze gamma spectra. You will also operate high-purity germanium detectors and conduct nuclear activation measurements. This position offers a unique opportunity to work within the international FAIR project infrastructure, providing access to world-class laser and accelerator technology. It is an ideal role for a physicist looking to combine experimental work with advanced numerical analysis in a highly collaborative, interdisciplinary scientific environment.

Required Skills

Education

Master's degree in Physics

Experience

  • Professional experience in experimental physics within an international team environment
  • Experience in programming and numerical analysis for scientific applications
  • Experience with 2D-PIC simulations and Monte-Carlo codes (GEANT4 or FLUKA) is preferred
  • Knowledge of scintillator-based diagnostics and high-speed camera systems (sCMOS, ICCD) is advantageous
  • Experience in timing/synchronization and automated data analysis is a plus

Languages

English (Fluent)

Additional

  • Fixed-term contract for 3 years; 65% part-time position; Earliest start date April 1, 2026; Located in Darmstadt, Germany.