Implementation of a real-time plasma density profile reconstruction code for the tokamak WEST H/F
Stage Saint-Paul-lès-Durance (Bouches-du-Rhône) IT development
Job description
Vacancy 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
2024-34755Description de l'unité
"Le CEA est un acteur majeur de la recherche, du développement et de l'innovation, au cœur des enjeux sociétaux et en particulier de la transition énergétique. Dans ce domaine, des recherches de pointe sont menées au sein de l'Institut de Recherche sur la Fusion par confinement Magnétique (IRFM) à Cadarache (13), dont l'objectif est le développement d'une source d'énergie durable et respectueuse de l'environnement basée sur l'utilisation de l'énergie de fusion à l'œuvre dans les étoiles.
La production de cette énergie sur terre demande de porter à plusieurs centaines de millions de degrés un milieu appelé plasma au sein d'installation de hautes technologies, comme les tokamaks. Ce défi, aux riches perspectives industrielles et économiques, exige d'importantes avancées scientifiques et technologiques qui mobilisent la communauté scientifique. L'IRFM exploite le tokamak WEST dans le cadre du programme fusion européen pour préparer les futures expérimentations sur le tokamak international ITER, en construction sur le site de Cadarache. Les chercheurs de l'IRFM, avec leurs partenaires académiques, développent également les outils de théorie et modélisation nécessaires à la compréhension des phénomènes au cœur des plasmas de fusion tandis qu‘ingénieurs et techniciens travaillent sur des technologiques innovantes dans des domaines tels que le cryomagnétisme, les chauffages par ondes Hautes Fréquences ou de nouveaux matériaux permettant l'extraction de flux de chaleur intense."
Position description
Category
Physics of the nucleus, atom, molecule
Contract
Internship
Job title
Implementation of a real-time plasma density profile reconstruction code for the tokamak WEST H/F
Subject
Implementation, deployment and evaluation of a real-time plasma density profile reconstruction code for the tokamak WEST
Contract duration (months)
4 à 6
Job description
"Fusion energy is one of the promising solutions to create a carbon neutral civilization. To achieve this goal before the end of this century, the ITER project (www.iter.org), started at Cadarache in 2005, should demonstrate in the next decades the technical feasibility of controlled fusion reactions into a facility called a tokamak. To prepare ITER startup and operation, the WEST (Tungsten (W) Environment in Steady-state Tokamak) project (built from the former Tore Supra tokamak) aims at testing plasma facing components and long-duration pulse operation in a fully metallic environment.
To control the plasma of WEST, several feedback controls are required. One of them is the density control: a real-time measurement of the integrated plasma density along a line-of-sight is used to inject more or less gas into the vacuum vessel in order to match the desired density. Recently, in collaboration with the Dutch Institute for Fundamental Energy Research, the real-time plasma density reconstruction code RAPDENS has been adapted to the WEST Plasma Control System (PCS). It will provide a full profile of the density from the plasma center to the edge in real time. With these new values for the PCS, new density controllers based on plasma central density, for example, could be developed and tested, improving the operation domain of WEST.
"
The student will finalize the real-time implementation of the considered reconstruction code into the WEST PCS. Then, he/she will assess the results and adjust the different parameters of the code. This work will bring the student to develop post-analysis scripts to analyze the generated data. Then he/she could improve the code in order to increase its flexibility and its robustness. Finally, a user guide should be written in order to keep the knowledge available for the WEST team.
Methods / Means
Base de données expérimentales, simulations simples
Applicant Profile
Master 2 in plasma physics / Master 2 in fusion science or technology / Engineering school
Position location
Site
Cadarache
Job location
France, Provence-Côte d'Azur, Bouches du Rhône (13)
Location
Candidate criteria
Languages
- English (Fluent)
- French (Fluent)
Prepared diploma
Bac+5 - Master 2
Recommended training
Physique des plasmas, école d'ingénieurs
PhD opportunity
Oui
Requester
Position start date
03/02/2025
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