PhD Thesis Student

Context & Job description

Subject: Development of structured mono-crystalline scintillators for X-ray imaging applications

You will join the Detector Unit, a team composed of about 20 people which provides support in the field of commercial and in-house detectors and develops advanced X-ray detectors.

The overall task of the thesis is the development of new perovskite hafnate thin layer scintillators for high-resolution X-ray imaging. The work is divided into 4 activities: Simulation, Material preparation by Liquid Phase Epitaxy (LPE), Characterization and Imaging performances analysis. Modulation Transfer Function (MTF) simulations will be performed in order to select the best material/structure providing the optimised couple X-ray absorption/contrast. A growth strategy will then be set to optimise the scintillating film properties. A variety of material compositions, based on the K-edges of elements, will be specifically engineered to boost the efficiency of single crystal films at particular X-ray energies. Finally, a micro-structured device will be developed by LPE method. The luminescence and optical properties of the scintillating films, as well as their X-ray imaging performances will be evaluated. Optical spectroscopy under ionizing radiation will be performed at the University Lyon1 and imaging tests will be carried out on ESRF beamlines in real conditions of X-ray imaging for high level research.

Further information may be obtained from T. Martin (tel.: +33 (0)4 76 88 20 52, email: tmartin@esrf.fr).

 

Expected profile

  • Degree allowing enrollment for a PhD (such as MSc, Master 2 de Recherche, Laurea or equivalent) in physics, materials science, chemistry or closely related science
  • A background in experimentation is desirable, and knowledge of scintillation and crystal growth would be an advantage
  • Manual skills and rigorous attention to detail are essential in this work environment
  • You should be an effective team player and very well organized
  • Proficiency in English (working language at the ESRF)

Working conditions

Place of Work:  mainly at the ESRF in Grenoble (France). Academic follow-up and measurements at Université Lyon 1 (France).

Salary: 2378€ gross salary per month

Company description

The European Synchrotron, the ESRF, is an international research centre based in Grenoble, France.

Through its innovative engineering, pioneering scientific vision and a strong commitment from its 700 staff members, the ESRF is recognised as one of the top research facilities worldwide. Its particle accelerator produces intense X-ray beams that are used by thousands of scientists each year for experiments in diverse fields such as biology, medicine, environmental sciences, cultural heritage, materials science, and physics.

Supported by 22 countries, the ESRF is an equal opportunity employer and encourages diversity.

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