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-24-0263
Direction
DRF
Thesis topic details
Category
Corpuscular physics and outer space
Thesis topics
Optimization of gamma radiation detectors for medical imaging. Time-of-flight positron emission tomography
Contract
Thèse
Job description
Positron emission tomography (PET) is a nuclear medical imaging technique widely used in oncology and neurobiology. The decay of the radioactive tracer emits positrons, which annihilate into two photons of 511 keV. These photons are detected in coincidence and used to reconstruct the distribution of tracer activity in the patient's body.
We are offering you the opportunity to contribute to the development of an ambitious, patented technology: ClearMind.
You will work in an advanced instrumentation laboratory in a particle physics environment.
Your first task will be to optimize the 'components' of ClearMind detectors, in order to achieve nominal performance.
We'll be working on scintillating crystals, optical interfaces, photo-electric layers and associated fast photo-detectors, readout electronics.
We will then characterize the performance of the prototype detectors on our measurement benches, which are under continuous development. The data acquired will be interpreted using in-house analysis software written in C++ and/or Python.
Finally, the physics of our detectors will be modeled using Monté-Carlo simulation (Geant4/Gate software), and we will compare our simulations with our results on measurement benches. A special effort will be devoted to the development of ultra-fast scintillating crystals in the context of a European collaboration.
University / doctoral school
Physique et Ingénierie: électrons, photons et sciences du vivant (EOBE)
Paris-Saclay
Thesis topic location
Site
Saclay
Requester
Position start date
01/09/2024
Person to be contacted by the applicant
YVON Dominique dominique.yvon@cea.fr
CEA
DRF/IRFU
CEA Saclay
IRFU/DPhP, Bat 141, PC21
Bat 141, p52
91191 Gif sur Yvette Cedex
&
BioMaps, SHFJ, 4 place du général Leclerc, 91401 Orsay France
01 6908 3625
Tutor / Responsible thesis director
SHARYY Viatcheslav Viatcheslav.Sharyy@cea.fr
CEA
DRF/IRFU
CEA Saclay
DSM, IRFU, DPhP
Bat. 141
91191 Gif-sur-Yvette
0169086129
En savoir plus
https://irfu.cea.fr/Pisp/dominique.yvon/
https://irfu.cea.fr/Phocea/Vie_des_labos/Ast/ast_technique.php?id_ast=3730