“Scientist” (all genders) at the PHELIX facility

GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt operates one of the leading particle accelerators for science. In the next few years, the new FAIR (Facility for Antiproton and Ion Research) one of the world's largest research projects, will be built in international cooperation. GSI and FAIR offer the opportunity to work together in this international environment with a team of employees committed to ensure each day to conduct world-class science.


Since 2008, the GSI is operating PHELIX, the largest laser facility in Germany, for the international scientific community. The facility is a dual front-end nanosecond and sub-picosecond laser that benefits from the worldwide unique combination of expertise in laser and heavy-ion physics located around Darmstadt.


To maintain PHELIX’s attractiveness and prepare the next generation of high-energy lasers, GSI and FAIR have started an EU funded project named THRILL (Technology for High-Repetition-rate Intense Laser Laboratories) with eight other partners in Europe. The THRILL project deals with providing new schemes and devices for pushing forward the limits of research infrastructures (RI) of European relevance and ESFRI landmarks. The project partners have identified several technical bottlenecks in high-energy high-repetition-rate laser technology that prevent it from reaching the technical readiness level required to technically specify and build the needed devices.


Therefore, we are offering 3 post-doctoral positions as


 “Scientist” (all genders) at the PHELIX facility


Posting ID: 23.03-1700



to perform research within the THRILL project in a small research group.


Your tasks:

  • Control and improvement of the laser beam quality
  • Development of simulation tools for the prediction of the performance of high-energy lasers
  • Improvement of the average power of high-energy lasers.



Since the project is shared among European partners, frequent short-term visits and staff exchanges are foreseen. In addition, the candidates will be integrated in the PHELIX operation team and will be trained as shot director/operator for the normal operation of PHELIX.



Your profile:

  • A recently-completed PhD degree in experimental short-pulse laser or laser-plasma physics
  • A track record of own research (publication list, recommendation references)
  • Experience on short-pulse, high-energy laser development and/or high-energy laserexperiments
  • A good knowledge in high-energy high-intensity laser physics in necessary in theory and practice
  • A strong interest to work in an international environment and excellent team-working capability. 



New development ideas based on the candidate´s experience are also welcome if they meet the institute´s mid-to long-term development goals.


We offer an employment contract with a duration until Dec. 31st 2026, starting ASAP. The salary is based on the collective agreement for public employees (Tarifvertrag für den öffentlichen Dienst - TVöD (Bund)).


GSI supports the vocational development of women. Therefore, women are especially encouraged to apply for the position.


Severely handicapped persons will be preferentially considered, when equally qualified.


Questions regarding this offer should be sent to Prof. Dr. V.Bagnoud: v.bagnoud(at)gsi.de.


Further information about FAIR and GSI is available at www.gsi.de/en and www.fair-center.eu.


Interested candidates can send their application with a description of the research interest and underline how this fits with the goals of the THRILL project and the near term goals of the laser and plasma physics program of GSI with the Posting–ID 23.03-1700, by 05/02/2023 at the latest.


Preferred via the online portal on our job site,


or via email to bewerbung(at)gsi.de



GSI Helmholtzzentrum für Schwerionenforschung GmbH











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