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-24-0416
Direction
DRF
Thesis topic details
Category
Technological challenges
Thesis topics
Artificial Intelligence for Mass Measurement of Exotic Isotopes
Contract
Thèse
Job description
Artificial intelligence opens new perspectives for basic science. It is no exception for nuclear structure studied at the extreme of the nuclear chart by the Super Separator Spectrometer (S3) under construction at GANIL-SPIRAL2. The Piège à Ions Linéaire du Ganil pour la Résolution des Isotopes en Masse (PILGRIM) is a Multi-Reflection time-of-flight Mass Spectrometer (MR-ToF-MS), with state-of-the-art performances that can only be exploited fully thanks to a joint development with the FASTER (http://faster.in2p3.fr/) data acquisition at LPC Caen. The PhD thesis will consist in carrying out this development with the FASTER developers and the physicist in charge of PILGRIM. Machine learning techniques will have to be employed to recognize patterns in the time-of-flight of ions extracted as bunches from the S3 Low Energy Branch. For each individual ion, the time of flight will have to be determined with sub-nanosecond precision, correcting for effects due to pile-up, gain and baseline fluctuations. This development should lead to the determination of masses of exotic nuclei with exquisite precision, enabling tests of nuclear physics models in previously uncharted territories.
University / doctoral school
Physique, Sciences de l’Ingénieur, Matériaux, Énergie (PSIME)
Caen
Thesis topic location
Site
Saclay
Requester
Position start date
01/10/2024
Person to be contacted by the applicant
DELAHAYE Pierre delahaye@ganil.fr
CNRS
GANIL/Grand Accélérateur National d’Ions Lourds
Bld Henri Becquerel
BP 55027
14076 Caecedex 5
02 31 45 4539
Tutor / Responsible thesis director
DELAHAYE Pierre delahaye@ganil.fr
CNRS
GANIL/Grand Accélérateur National d’Ions Lourds
Bld Henri Becquerel
BP 55027
14076 Caecedex 5
02 31 45 4539
En savoir plus
https://www.ganil-spiral2.eu/wp-content/uploads/2023/10/AIMMEI-thesis2024.pdf