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CNRS
Just Landed
2 days ago
Chercheur postdoctoral en physique nucléaire expérimentale : mise en service du détecteur SIRIUS CNRS in France
Degree Level
Postdoc
Field of study
Experimental Physics
Funding
Available
Deadline
Nov 25, 2026
Country
France
University
CNRS
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About this position
The postdoctoral project is based at the IJCLab in Orsay within the nuclear physics team “Spectroscopie, désintégration et fission”, under CNRS supervision and in collaboration with teams from IPHC, GANIL, and CEA-Saclay. The researcher will contribute to the development and commissioning of the new SHEXI detector system for SIRIUS, a multidector setup designed to improve the detection efficiency of L-type X rays and help identify the atomic numbers of recently discovered superheavy elements.
The position combines detector development, instrumentation, and experimental nuclear physics. A major part of the work involves testing and validating the silicon SHEXI detector, characterizing ASIC preamplifiers from XGLab, checking digitizers, and supporting the installation and performance verification of SIRIUS at the focal plane of the RITU separator in Finland. The researcher will also help verify and update the online analysis software, take part in beam commissioning, and carry out follow-up experiments once the system is operational.
Beyond the commissioning phase, the postdoctoral researcher will analyze data and help develop new experimental programs using SIRIUS@RITU. The advert also highlights an available data set on 217Pa, already collected with RITU, for studies of individual particle energies, residual interactions, and E3 correlations beyond 208Pb, addressing the question of the absence of a shell closure at Z=92.
The role is embedded in a collaborative research environment linking IJCLab with major French and Finnish nuclear physics facilities. It offers a strong experimental focus across detector systems, beam-line commissioning, and the interpretation of rare-nucleus data.
Funding details
Available
What's required
A postdoctoral researcher is sought for experimental nuclear physics work. The advert does not specify degree grade, language test, or GPA requirements, but the role clearly requires strong experience or aptitude in detector development, silicon detector testing, ASIC preamplifier and digitizer characterization, beam commissioning, online analysis software, experimental data analysis, and scientific dissemination through conference presentations and journal publications. Willingness to work on site in Orsay and spend an extended period in Finland for installation, tests, and commissioning at JYFL/RITU is implied by the project.
How to apply
Apply through the job posting on the public service portal using the application link provided. Submit the required application materials via the designated online process before the deadline. Follow any instructions on the advert page if additional documents are requested.
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