Research Scientist (PhD - all genders) for Nuclear Physics Experiments

GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt operates one of the leading particle accelerators for science. Currently, 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 in this international environment with a team of employees committed to ensuring each day to conduct world-class science.


The Thermalized Exotic Nuclei group focuses on high-precision experiments with thermalized exotic ions. The group runs experiments with the FRS Ion Catcher for relativistic heavy ions and exotic nuclei. The group leads the construction, operation and drives the science program with the Super-FRS Ion Catcher at FAIR. At both instruments, short-lived exotic nuclei are produced, separated and studied with modern detector systems. The group is integral part of large international scientific collaborations and performs experiments at the cutting edge of modern nuclear science.

The Thermalized Exotic Nuclei group offers a tenure track Postdoc position for a


Research Scientist (PhD – all genders) for Nuclear Physics Experiments

Posting-ID: 24.93-1230


Position overview and responsibilities:

The candidate will conduct research with high-intensity primary and secondary beams at the (Super-)FRS and the (Super-)FRS Ion Catcher. The work will be integrated in collaborative activities of the NUSTAR and Super-FRS Experiment Collaboration. The candidate will work together with the experimentalists of the FRS/SFRS group and participate in user experiments and scientific-technical developments of the FRS and FRS Ion Catcher, also using the FRS Ion Catcher as development platform for experiments with the Super-FRS Ion Catcher. The major project will be the construction, commissioning and operation of the cryogenic stopping cell of the Super-FRS Ion Catcher. The task specifically allows to develop an individual scientific-technical profile in the framework of the Super-FRS Experiment Collaboration.


Main activities:


  • Assembly, commissioning and operation of the cryogenic stopping cell (CSC) of the Super-FRS Ion Catcher offline and with the beam
  • Contributions to the scientific-technical developments with the CSCs at the FRS and the Super-FRS
  • Development of an own research profile within the research program of the Super-FRS Experiment Collaboration
  • Scientific-technical support during preparation and execution of experiments, contribution to supervision and support of external user groups.


Education and experience requirements:


  • PhD in the field of experimental nuclear physics
  • Experience with cryogenics, stopping of heavy ions in gas, ion transport in high-density gas with RF structures
  • Experience with simulation codes for mechanical (COMSOL, etc.) and ion-optical (SIMION, etc.) design
  • Ability to design and perform experiments with thermalized beams produced at relativistic energies
  • Self-motivated, able to integrate into an experiment team and to work well within the team
  • Excellent communication, planning, and organizational skills


Desired qualifications:


  • Experience with UHV
  • Experience with CAD software, preferred CATIA
  • Expertise with safety regulations in the laboratories and experiments at GSI/FAIR


We offer an interesting and challenging tenure-track position in an international environment. The position is initially limited to a duration of three years with the possibility of a 2-year extension. After successful evaluation, the position will become permanent.


Salary is equivalent to that for public employees as specified in the collective agreement for public employees (TVöD Bund).

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

Handicapped persons will be preferentially considered when equally qualified.


For further information please contact Dr. Timo Dickel - email: t.dickel(at) .

Information about FAIR and GSI is available at  and


Applications should include:


  • A letter which exhibits the record of accomplishments and expertise, the candidate’s research interest and future goals, especially outlining the planned research activities in the Super-FRS Experiment Collaboration
  • A CV, list of publications, including a commented selection of the five most significant ones
  • Names of three possible references.


If you find this position interesting and challenging and would like to work in an exceptional, international scientifically excellent environment, please send your application documents with information of your earliest possible starting date and the Posting-ID 24.93-1230 above to the following address by August, 7th,2024 at the latest


via the online portal on our job site:




GSI Helmholtzzentrum für Schwerionenforschung GmbH





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