The new accelerator facility FAIR is under construction at GSI. Learn more.


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Laboratory Physicist (PhD) (d/f/m) SFS

The GSI Helmholtz Centre for Heavy Ion Research (Helmholtzzentrum für Schwerionenforschung), a member of the Helmholtz Association of German Research Centres, is one of the largest investigation centres in Germany. The laboratory consists of a system of heavy-ion accelerators, storage rings, separators, as well as high-energy lasers.


The upcoming Facility for Antiproton and Ion Research (FAIR), one of the world’s largest research projects, will extend the existing accelerator complex and widen enormously the research area of the laboratory. FAIR is being built in the frame of international cooperation.


GSI and FAIR offer the opportunity to work together in an international environment with a team of employees committed to ensuring forefront science.


For the department of System Planning of Super Fragment Separator (SFS) we are looking for a


Laboratory Physicist (PhD) (d/f/m)

in the domain of detector system developments, in particular position and intensity monitors for primary and fragment beams for Super-FRS.

Reference: 6520-20.53



The Super Fragment Separator (Super-FRS) is a forefront machine of FAIR, with unique components having challenging technological functionalities. A multiplicity of primary beam as well as fragment beam detector systems will be employed in order to fulfil the various operation requirements of Super-FRS. This includes in particular position and intensity monitoring of primary and fragment beams for tuning and calibration purposes of the separator. Some of the detector systems will be developed in collaboration with FAIR Member States (in particular institutes from Russia).  


Job tasks

  • Development and construction of various detector systems for Super-FRS
  • Follow-up of procurement processes together with in-kind partners; this includes:
    • follow-up of project milestones
    • quality assurance during production
    • participation during acceptance tests
    • preparation and participation of test beam times to characterize detector systems (at GSI as well as at other laboratories world-wide)
  • Pre-assembly and installation of detector systems at the Super-FRS
  • Commissioning of detector systems 


It is expected that the candidate (d/f/m) supports the WPL in organisational issues as well as with project reporting regarding the concerned detector/procurement work packages.    



Skills and Abilities


The successful candidate (d/f/m) should have:

  • Diploma or Master in physics or comparable fields; PhD in physics or comparable fields is highly desirable  
  • Excellent skills and experiences in the domain of detector technologies; know-how in the field of diamond detector development is highly desirable 
  • Very good knowledge of associated front-end electronics and detector slow-control (EPICS or equivalent software environment)
  • Very good computation skills (e.g. C, C++, or equivalent scientific programming knowledge, and experience to work in Unix and Windows environments)
  • Fluent English; basic knowledge of German would be an advantage
  • Structured working method
  • Good team skills as well as ability of working independently


The candidate (d/f/m) should possibly have experience with:

  • Data Acquisition and Data Analysis (Root knowledge)
  • Operation of accelerator machines (preferable in-flight separators or magnetic spectrometers)
  • MS-Office tools (preferable also Microsoft Project)
  • Follow-up of procurement process and execution of acceptance tests


The position is initially limited to 5 years. Salary and benefits are based on the Collective Agreement for the German Public Service (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.


Further information about FAIR and GSI is available at and


If you regard the described field of activity as a personal challenge and are interested in working in an exceptional international, highly technical environment, please send your complete application documents, including your salary expectations, with details of your earliest possible starting date, quoting the reference number 6520-20.53, by September 23rd, 2020 at the latest to:




GSI Helmholtzzentrum für Schwerionenforschung GmbH

Abteilung Personal

Planckstrasse 1

64291 Darmstadt






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