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  • Engineer in Detectors group | French national synchrotron facility

Engineer in Detectors group | French national synchrotron facility

Jun 25 2021

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 located in the Experiments division, in the Detectors group, composed of 10 people, including 6 permanents staff. The Detectors group missions consist to develop, realize and operate performant experimental devices, necessary to the well-functioning and to maintain the best level of competitiveness of the beam lines.


The candidate will strengthen one of the current detector R&D programs within the framework of a European collaboration, and at longer term, he/she will be responsible for a complete and multi-technical project. He/she will be placed under the responsibility of the head of the Detectors group.

II.Responsabilities and tasks

He/she will participate in activities related to detectors for spectroscopy and X-ray fluorescence (high purity germanium multi-element detectors of the latest generation), in particular within the framework of an European project: LEAPS-INNOV. In interaction with his/her manager, the SOLEIL beamline scientists and the project partners, he/she will be in charge of simulations of the semiconductor detector to define its geometry and performance under various experimental conditions, and will subsequently participate in the experimental tests of the prototype(s) resulting from the collaborative work;

He/she will be responsible for proposing and leading end-to-end detector developments (from simulation to commissioning) to provide the installation with high-performing detectors and to prepare for future needs. This will be done by relying on the links created with partner institutes, as well as with manufacturers if necessary;

As part of his/her projects, he/she will identify and structure the activities necessary to achieve the objectives (ex: simulations, prototyping, measurements, etc.), will organize his/her work and/or teamwork accordingly (resources of the Detectors group and possibly resources outside the group), will supervise non-permanent staff and/or sub-contractor as needed. He/she will also ensure the dissemination of the results on the beamlines;

As part of his/her projects, he/she will perform the necessary simulations to guide the design, specify and perform the appropriate measurements, in the laboratory and/or on the beamline, to characterize the performance of the detectors developed (prototypes and/or final detectors), will analyze the data and assess the results;

He/she will regularly make a review of existing technologies, aligning them with the SOLEIL needs (interactions with beamline scientists);

In addition to carrying out regular technological survey, he/she will provide support actions for beamlines (detector calibrations, various settings, advice to beamline scientists, etc);

He/she will participate in the definition of priorities and technical choices and will advise beamline scientists in this field;

He/she will ensure the links with the European collaborators; missions abroad must be considered;

He/she will present the obtained results in international conference and publish the work done.

III.Qualifications and experience

The candidate should hold a PhD (BAC+8) in particle physics or nuclear physics.

This job opportunity concerns a long term contract (CDI).

Position open to CNRS and CEA staff, or universities, or other officials in the context of detachment.

Source: Synchrotron Soleil