Study of impurity transport in negative and positive triangularity plasmas H/F
il y a 1 jour
Nuclear fusion in a tokamak is a promising source of energy. However, a question arises: which plasma configuration is most likely to produce net energy? To contribute to answering this question, during this internship (and possible subsequent PhD), we will study the impact of magnetic geometry, comparison between positive and negative triangularity, on the collisional and turbulent transport of tungsten (W). The performance of a tokamak strongly depends on the energy confinement it can achieve. The latter degrades significantly due to turbulent transport and radiation, primarily from W. On ITER, the tolerated amount of W in the core of the plasma is just 0.3 micrograms in 800 cubic meters of plasma volume. Experiments have shown that the negative triangularity (NT) plasma geometry is beneficial for confinement as it significantly reduces turbulent transport. With this geometry, it is possible to reach confinement levels similar to those of the ITER high confinement configuration (H-mode in positive triangularity), without the need for a minimum power threshold and without the associated plasma edge relaxations. However, questions remain: what level of W transport is found in NT compared to a positive geometry? What level of radiation can be predicted in future NT reactors? To address these questions, the objective of this internship is to develop an algorithm that determines the impurity transport coefficients from experimental measurements and by solving the impurity transport equation.
The internship duration is 6 months.
Moyens / Méthodes / Logiciels
Algorithm development based on open-source impurity transport and radiation code AURORA.
*Profil du candidat*
Physics or engineering backgroud
*Localisation du poste
Site*
Cadarache
*Localisation du poste*
France, Provence-Côte d'Azur, Bouches du Rhône (13)
Ville
Saint paul lez Durance
*Critères candidat
Langues*
Anglais (Courant)
Possibilité de poursuite en thèse
Oui
*Demandeur
Disponibilité du poste*
16/03/2026
-
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France CEA Temps pleinInformations générales Entité de rattachement Le CEA est un acteur majeur de la recherche, au service des citoyens, de l'économie et de l'Etat.Il apporte des solutions concrètes à leurs besoins dans quatre domaines principaux : transition énergétique, transition numérique, technologies pour la médecine du futur, défense et sécurité sur un...
-
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France CEA Temps pleinPosition descriptionCategoryElectromagnetism, electrical engineeringContractInternshipJob titleInteraction between energetic particle driven instabilities and microturbulence in tokamak plasmas H/FSubjectTokamak plasmas are nonlinear systems hosting instabilities across widely separated spatial and temporal scales. Energetic ions produced by fusion reactions...
-
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France CEA Temps pleinGeneral 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...
-
Deputy Program Manager
il y a 2 semaines
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France ITER Temps pleinFusion, the nuclear reaction that powers the sun and the stars, is a promising long-term option for a sustainable, non-carbon emitting global energy supply.The ITER Organization (IO), based in the southern France, welcomes best talents who can together prepare the way to this new energy in a truly multi-cultural work environment.We offer challenging...
-
Postdoctoral Fellowships 2026
il y a 1 semaine
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France ITER Temps pleinFusion, the nuclear reaction that powers the sun and the stars, is a promising long-term option for a sustainable, non-carbon emitting global energy supply.The ITER Organization (IO), based in the southern France, welcomes best talents who can together prepare the way to this new energy in a truly multi-cultural work environment.We offer challenging...
-
Post-doc H/F
il y a 2 semaines
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France CEA Temps pleinGeneral 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...
-
Mechanical Engineer, Divertor IO1153
il y a 1 jour
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France ITER Organization Temps pleinApply today at: Grade: P1/P2(NET Salary begins at €55,438 plus eligible allowances)(SALARY SIMULATOR)Application Deadline: 04/01/2026RELOCATION PACKAGES / COMPETITIVE SALARY / EXCELLENT BENEFITS / MEDICAL INSURANCE / 21% PENSIONAs aMechanical Engineer, Divertor,your goals will include performing the entire engineering life cycle (specification, design,...
-
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France CEA Temps pleinInformations générales Entité de rattachement Le CEA est un acteur majeur de la recherche, au service des citoyens, de l'économie et de l'Etat.Il apporte des solutions concrètes à leurs besoins dans quatre domaines principaux : transition énergétique, transition numérique, technologies pour la médecine du futur, défense et sécurité sur un...
-
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France Choisir le Service Public Temps pleinInformations générales Organisme de rattachement CNRS Référence UMR7648-LAUVER-001 Date de début de diffusion /01/2026 Date de parution /01/2026 Date de fin de diffusion /02/2026 VersantFonction Publique de l'Etat CatégorieCatégorie A (cadre) Nature de l'emploiEmploi ouvert uniquement aux contractuels Domaine / MétierRecherche -...
-
Deputy Program Manager
il y a 2 semaines
Saint-Paul-lès-Durance, Provence-Alpes-Côte d'Azur, France ITER Organization Temps pleinDirect applicants here:Grade: P5/P6(NET Salary begins at €120,615, plus eligible allowances)(SALARY SIMULATOR)Application Deadline: 28/01/2026RELOCATION PACKAGES / COMPETITIVE SALARY / EXCELLENT BENEFITS / MEDICAL INSURANCE / 21% PENSIONAsa Deputy Program Manager,your goals will include providing strategic leadership for the overall management for ITER's...
