Scientist on SIRIUS Beamline (m/f)

Website SOLEIL Synchrotron

SOLEIL is the French national synchrotron facility, located on the Saclay Plateau near Paris. It is a multi-disciplinary instrument and research laboratory whose mission is to conduct research using synchrotron radiation, to develop cutting edge instrumentation on the beamlines, and to make these developments available to the scientific community. SOLEIL synchrotron, a unique tool for both academic research and industrial applications across a wide range of disciplines including physics, biology, chemistry etc., opened in 2008. It is used annually by thousands researchers from France and abroad. SOLEIL is based on a synchrotron source that is state-of-the-art both in terms of brilliance and stability. This large scale facility, a partner of the Université Paris Saclay, is a “publically owned” private company, founded by the CNRS and the CEA.

This position is in the SIRIUS Beamline, of the Experimental division.

The SIRIUS beamline ( exploits synchrotron radiation at energies of between 1.4 and 13 keV, and provides beam and sample environments for structural studies to two broad scientific communities: one studying soft interfaces (liquid-air, solid-air, organic/ inorganic hybrids, self-assembly, Langmuir films, biomimetic systems, liquid crystals), and the other studying semiconductor and magnetic nanostructures. In the field of soft condensed matter, the beamline is designed to perform x-ray diffraction, scattering, and fluorescence measurement in the grazing incidence geometry (GIXS, GISAXS, TXRF, SWF …) on liquid, solid or soft interfaces at fixed x-ray energy, but also in anomalous or resonant conditions at absorption edges of relevant chemical elements  (Ca, Cl, Cd, S, P, K). The undulator light source selected allows selection of the polarisation state of the beam (linear, vertical, circular). The use of the spatial coherence of the beam in the tender x-ray range (2-4keV) opens also numerous perspectives.

I. Mission

The scientist (m/f) will work on the SIRIUS beamline under the responsibility of the beamline manager. He/She will be involved in the soft matter field contributing to user support activities, but also developing his/her own scientific research in a subject relevant to the beamline.

He/She will participate actively in the user support program, and in the technical and methodological aspects of the beamline. In particular, he/she will participate in the development of the tender x-ray use and/or in the implementation of sample environment where soft interfaces are confined. This work will be performed in close collaboration with the beamline team and in the perspective of a potential future upgrade to the SOLEIL source.

He/She will be encouraged to develop a research program using the instruments and methods implemented on the beamline, and in the domain of soft interfaces studied at the beamline  (for example  biomimetic systems, ionic liquids). This aspect of his (her) activities will be in the framework of in-house research and could imply external collaborations.

II. Qualifications and experience

The candidate should hold a PhD in the domains concerned by soft matter, soft interfaces and associated disciplines. Complementary post-doctoral experience in one or more domains of interest to the beamline would be highly desirable.

The following skills will be appreciated:

  • Ability and taste for experimental and methods development, and a willingness to learn new techniques
  • Ability to work closely with the existing beamline team and establish and maintain collaborations with different groups on different subjects
  • Knowledge and expertise in x-ray scattering and spectroscopy
  • Knowledge in physical-chemistry and associated techniques

This position requires multidisciplinary skills, a sense of responsibility and autonomy together with the ability to work within a beamline team.

The candidate must be fluent in English (written and spoken). Knowledge of French would be an advantage.

To apply for this job please visit the following URL: →