General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DRF-25-0414
Direction
DRF
Thesis topic details
Category
Condensed Matter Physics, chemistry, nanosciences
Thesis topics
Spectrometry and Artificial Intelligence: development of explainable, sober and reliable AI models for materials analysis
Contract
Thèse
Job description
The discovery of new materials is crucial to meeting many current societal challenges. One of the pillars of this discovery capacity is to have means of characterizing these materials which are rapid, reliable and whose measurement uncertainties are qualified, even quantified.
This PhD project is part of this approach and aims to significantly improve the different ion beam induced spectrometry (IBA) techniques using advanced artificial intelligence (AI) methods. This project aims to develop explainable, sober and reliable AI models for materials analysis.
The PhD project proposed here has three main objectives:
- Develop an uncertainty model using probabilistic machine learning techniques in order to quantify the uncertainties associated with a prediction.
- Due to the very large number of possible combinatory-generated configurations, it is important to understand the intrinsic dimensionality of the problem. We wish to implement means of massive dimensionality reduction, in particular non-linear methods such as autoencoders, as well as PIML (Physics Informed Machine Learning) concepts.
- Evaluate the possibility of generalization of this methodology to other spectroscopic techniques.
University / doctoral school
Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB)
Paris-Saclay
Thesis topic location
Site
Saclay
Requester
Position start date
01/10/2025
Person to be contacted by the applicant
KHODJA Hicham
hicham.khodja@cea.fr
CEA
DRF/IRAMIS/NIMBE/LEEL
Hicham Khodja
Laboratoire d’Études des Éléments Légers
DRF/IRAMIS/NIMBE/LEEL & UMR 3685 CEA-CNRS
Point courrier 127
CEA-Saclay
91191 Gif sur Yvette
France
0169086923 (fax)
01 69 08 28 95
Tutor / Responsible thesis director
KHODJA Hicham
hicham.khodja@cea.fr
CEA
DRF/IRAMIS/NIMBE/LEEL
Hicham Khodja
Laboratoire d’Études des Éléments Légers
DRF/IRAMIS/NIMBE/LEEL & UMR 3685 CEA-CNRS
Point courrier 127
CEA-Saclay
91191 Gif sur Yvette
France
0169086923 (fax)
01 69 08 28 95
En savoir plus
https://iramis.cea.fr/nimbe/leel/pisp/hicham-khodja/
https://iramis.cea.fr/en/nimbe/leel/