University of California - San Diego Postdoctoral research position at the DIII-D tokamak focused on disruptions and runaway electrons. Our team does mostly experimental work, but experts in simulations will be consi... dered also. Please email Eric Hollmann at ehollmann@gmail.com if interested.
Link:https://cer.ucsd.eduSee More >>
PhD on Wall conditioning of a long pulse, tungsten tokamak: from WEST to ITER
CEA Research on controlled thermonuclear fusion as a new source of energy is carried out in devices called tokamaks, where matter is brought to high temperature (plasma state) and con... fined by magnetic fields. Interactions between the plasma and the walls of the vacuum chamber of tokamaks releases impurities, which can affect plasma performance. Different conditioning methods are used to control the surface state of the vacuum chamber, and thus impurity fluxes. These mainly use low-temperature plasmas (glow or radio-frequency discharges) in hydrogen or helium, but also deposition of thin layers of boron, because of its ability to trap by chemical affinity impurities like oxygen. With the advent of metallic plasma facing components and the extension of plasma duration in superconducting tokamaks, like ITER and WEST, operated in the Institute of Research on Magnetic Fusion (CEA Cadarache, France), innovative wall conditioning techniques to maintain optimal surface state and performances are under development. The aim of this thesis is to characterize and evaluate in WEST the relevance for ITER of different methods of boron injection, both a priori and in real time. The work will consist on the one hand to participate in experiments on WEST and to analyze experimental data (location and lifetime of boron deposits, effect on plasma performance). In order to understand the transport of boron, the candidate will work with plasma boundary numerical models (SOLEDGE, EIRENE, DIS). This work, combining experiments and simulations, will consolidate the understanding of the physics of wall conditioning in a metallic environment and predicting consequences for ITER and future fusion devices.
Link:https://www.cea.fr/See More >>
Magnetohydrodynamic and kinetic studies in HED magnetized plasmas
CELIA UMR 5107, Univ. Bordeaux - CNRS - CEA, France We welcome applications for a PostDoc contract of 24 months (extensible to 36 months). Applications with experimentalist and/or theoretician profiles are both welcome: On t... he experimental side, we expect the successful applicant to be involved in the planning, execution and analysis of experiments at large and medium-scale high-power laser facilities and XFEL sources, studying laser interaction with matter under variable magnetization conditions, specifically on the transport of energy and of magnetic flux. On the theory/computational side, we expect the successful applicant to perform large-scale computing modelling of high energy-density plasmas using extended-MHD and Vlasov-Fokker-Planck codes and to compare predictions against experimental data, and as well to contribute to the development of a new 3D AMR-ALE hydrodynamic code. Applicants should hold a PhD, or be close to obtaining such a degree, in physics and/or mathematical physics. Preferably, they should possess a strong background in plasma physics.
See More >>
PhD / postdoc opportunities at Wendelstein 7-X
Max Planck Institute for Plasma Physics Several experimental/computational open positions: impurities, transport, radiation, turbulence, divertor... + more
