ASNR - Autorité de sûreté nucléaire et de radioprotection

About the Company

Depuis le 1er janvier 2025, l'IRSN et l’ASN se sont réunis pour devenir l’Autorité de sûreté nucléaire et de radioprotection (ASNR), créée par la loi du 21 mai 2024 relative à l'organisation de la gouvernance de la sûreté nucléaire et de la radioprotection. Autorité administrative indépendante, l’ASNR assure, au nom de l’État, le contrôle des activités nucléaires civiles et de radioprotection en France. Elle exerce également les missions de recherche, d'expertise, de formation et d’information des publics dans les domaines de la sûreté nucléaire et de la radioprotection.

Listed Jobs

Company Name

ASNR - Autorité de sûreté nucléaire et de radioprotection

Job Title

Stage Ingénieur/Master 2 Physique Nucléaire

Job Description

Job title: Nuclear Physics Engineer Intern – Master 2 Role Summary: Assist in finalizing the SPAC spectrometer for laser‑driven neutron field characterization and develop data deconvolution tools to extract neutron energy spectra. Expectations: Deliver high‑quality simulations, model development, and experimental validation within a six‑month internship, contributing to the LIOR project’s laser‑neutron source research. Key Responsibilities: - Perform realistic Monte‑Carlo simulations (Geant4/MCNP) of laser‑generated neutron emissions and assess environmental effects for facilities such as Apollon, ELI‑NP, ALLS, and LMJ. - Derive one or more parametric models describing obtained neutron spectra for Bayesian deconvolution. - Adapt the existing Nubay parametric model to new definitions. - Conduct deconvolution tests using experimental data from Apollon, ELI‑NP, and AMANDE. - Prepare technical reports and contribute to project documentation. Required Skills: - Proficiency in Python or ROOT programming. - Experience with Monte‑Carlo codes Geant4 or MCNP. - Strong analytical and problem‑solving abilities. - Effective written and verbal communication. Required Education & Certifications: - Current Master 2 student or final‑year engineering school student in Nuclear Physics, Radiation Interaction, or Radiation Measurement. - No specific certifications required, but familiarity with radiation safety principles is advantageous.

Saint-paul-lez-durance, France

On site

03-11-2025

Company Name

ASNR - Autorité de sûreté nucléaire et de radioprotection

Job Title

Analyse intégrative pour étudier les effets cardiovasculaires des faibles doses de radiations H/F

Job Description

**Job Title** Integrative Analysis of Cardiovascular Effects of Low‑Dose Radiation **Role Summary** Conduct an integrative multi‑omics analysis to assess the impact of low‑dose ionizing radiation on cardiovascular health. The role involves cleaning and preprocessing RNA‑seq, proteomics, RT‑qPCR, and imaging data, selecting appropriate dimensionality‑reduction and machine‑learning techniques, and performing biological enrichment to identify mechanistic pathways. **Expectations** - Completion of a comprehensive data‑analysis pipeline within the internship period. - Generation of reproducible scripts and documentation adhering to FAIR principles. - Presentation of findings in written reports and oral updates to the research team. **Key Responsibilities** - Import raw sequencing, proteomics, qPCR, and imaging data and perform quality control checks. - Execute data cleaning, normalization, and batch‑effect correction. - Apply dimensionality‑reduction methods (e.g., PCA, t‑SNE, UMAP) and supervised/unsupervised machine‑learning algorithms to detect patterns related to radiation dose. - Conduct Gene Ontology, pathway, and network enrichment analyses to interpret results biologically. - Collaborate with statisticians and domain experts to validate analytical choices and interpret outcomes. - Maintain version‑controlled code repositories (Git) and generate reproducible analysis scripts (e.g., R, Python). - Draft clear documentation and visual summaries of methods and results for submission to internal reports and potential publications. **Required Skills** - Proficient in R and/or Python for statistical analysis and bioinformatics. - Experience with RNA‑seq preprocessing, differential expression, and proteomic data handling. - Familiarity with machine‑learning libraries (scikit‑learn, caret, mlr, etc.). - Knowledge of biological enrichment tools (GSEA, DAVID, Enrichr, clusterProfiler). - Ability to troubleshoot and optimize pipelines for large‑dimensional datasets. - Strong written and verbal communication in French; English proficiency preferred. **Required Education & Certifications** - Current enrolment in a Master’s (M2) program in Bioinformatics, Applied Mathematics, or Statistics with a data‑science focus. - Coursework or project experience in high‑throughput omics data analysis and statistical modeling. - No mandatory certifications required; demonstration of relevant coursework and project work suffices.

Hauts-de-seine, France

On site

04-11-2025

Company Name

ASNR - Autorité de sûreté nucléaire et de radioprotection

Job Title

Stage - analyse de données météorologiques et validation de modèle H/F

Job Description

**Job Title** Internship – Meteorological Data Analysis and Model Validation **Role Summary** A research internship focused on evaluating vertical wind profile formulations for atmospheric dispersion modeling. The candidate will compare various Monin‑Obukhov similarity theory formulations against field measurements, enhance the meteorological pre‑processor (PreMet), and conduct statistical analysis to improve model accuracy for emergency response scenarios. **Expectations** - Demonstrate a strong foundation in fluid dynamics or atmospheric sciences - Apply Python programming to data processing, classification, and statistical evaluation - Present findings to a multidisciplinary research team and contribute to pre‑processor development **Key Responsibilities** - Collect and preprocess wind and temperature observations from ASNR’s Cherbourg dataset - Reconstruct vertical wind profiles using multiple theoretical formulations - Compare reconstructed profiles with measured data to assess validity across different atmospheric conditions - Implement improvements to the PreMet meteorological pre‑processor based on analysis results - Generate graphical and statistical post‑processing outputs to support model validation - Prepare progress reports and present results to research staff; participate in regular team meetings - Coordinate occasional on‑site visits to the Cherbourg measurement facility (travel as required) **Required Skills** - Knowledge of fluid mechanics and/or atmospheric science principles - Proficiency in Python (data manipulation, numerical libraries such as NumPy/Pandas, plotting with Matplotlib/Seaborn) - Experience in data classification, statistical analysis, and visualization - Understanding of Monin‑Obukhov similarity theory and boundary‑layer meteorology (preferred) - Strong analytical problem‑solving and communication skills **Required Education & Certifications** - Current enrollment in a Master’s (MSc) program (equivalent to Master 2), preferably in atmospheric science, fluid dynamics, or related engineering field - No specific certifications required ---

Hauts-de-seine, France

On site

10-11-2025

Company Name

ASNR - Autorité de sûreté nucléaire et de radioprotection

Job Title

Stage M2 / Biologie / CERWO H/F

Job Description

**Job Title** M2 Internship – Biology (Neurotoxicology & Radiotoxicology) **Role Summary** Assist in a research project investigating the combined effects of chemical (tungsten aerosol) and low‑dose ionizing radiation exposure on the rat brain. Conduct in vivo experiments, sample processing, and multiple molecular and histological analyses to evaluate neurovascular alterations and neuronal survival. **Expectations** Produce accurate, reproducible data on biological markers; contribute to drafting experimental reports; adhere to safety and ethical standards for animal work and radioactive materials. **Key Responsibilities** - Design and execute controlled in vivo exposure protocols (tungsten aerosol inhalation and gamma irradiation). - Prepare and section rat brain tissues for histology. - Perform immunohistochemistry to assess vascular and neuronal markers. - Conduct RT‑qPCR for targeted gene expression panels. - Execute Western blotting for protein quantification. - Optionally carry out iDisco tissue clearing and imaging studies. - Quantify results, analyze data statistically, and maintain detailed records. - Draft experiment summaries, figures, and manuscripts or contribution sections. **Required Skills** - Laboratory techniques: tissue fixation, sectioning, IHC, RT‑qPCR, Western blot, optional tissue clearing. - Proficiency with microscope imaging and data analysis software (e.g., ImageJ, Prism). - Knowledge of toxicology, radiobiology, neurobiology, and molecular biology. - Strong attention to detail, documentation, and adherence to SOPs. - Ability to work independently and collaboratively within a multidisciplinary team. **Required Education & Certifications** - Master’s degree (M2) or equivalent in Human & Environmental Toxicology, Neurophysiology, Pathophysiology, Integrative Biology, Neurotoxicology, or Radiotoxicology. - Basic competency in laboratory safety and animal handling regulations.

Fontenay-aux-roses, France

Remote

21-11-2025