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Physics & control of dissipative divertor regime in WEST tokamak experiments


Thesis topic details

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-25-0535  

Direction

DRF

Thesis topic details

Category

Corpuscular physics and outer space

Thesis topics

Physics & control of dissipative divertor regime in WEST tokamak experiments

Contract

Thèse

Job description

The success of the magnetic confinement fusion program relies on the control of the interaction between the hot confined plasma, where the fusion reactions take place, and the wall of the vacuum vessel in which this plasma is maintained. Currently, this interaction is managed by a hardware and magnetic configuration called the divertor, which aims to concentrate the lost plasma fluxes through a dedicated volume (the divertor volume) towards high flux components (surface components of the divertor). The control of dissipative phenomena in this divertor volume is a critical objective that shall allow maintaining high confinement performances in the core (hot plasma) while maintaining fluxes to the components below technological limits. The WEST tokamak, currently operated at CEA Cadarache, has as its main objective the control of this interaction, in close support with the ITER project. The thesis project aims to improve the physical understanding of the control experiments started on WEST, through advanced experimental analysis, to the optimization of a robust and generic control model that can be deployed on WEST to conduct scenarios representative of ITER conditions. The project will also be part of a very active international context on the subject, both in Europe (EUROfusion Activities), in Asia and in the United States, offering a wide spectrum of visibility and possibilities for collaborations and developments. The results will be published in peer-reviewed journals with possibly high impact factors, and may be presented at international conferences.

University / doctoral school

Physique et Sciences de la Matière (ED352)
Aix-Marseille Université

Thesis topic location

Site

Cadarache

Requester

Position start date

01/10/2025

Person to be contacted by the applicant

Fedorczak Nicolas nicolas.fedorczak@cea.fr
CEA
DRF/IRFM/SPPF/GECF
Commissariat à l’énergie atomique et aux énergies alternatives
Centre de Cadarache, 13108 St Paul Lez Durance Cedex

04 42 25 37 12

Tutor / Responsible thesis director

CIRAOLO Guido guido.ciraolo@cea.fr
CEA
DRF/IRFM
CEA, IRFM, 13108 St Paul Lez Durance
0442254950

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