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Position: PhD Position - Applied Superconductivity
Institution: Paul Scherrer Institut
Location: Villigen, Aargau, Switzerland
Duties: The project aims at understanding the performance degradation of the brittle Nb3Sn in large cables. A key aspect is the discrimination between reversible and irreversible degradation, by correlating the actual strain state of Nb3Sn with the performance evolution. A large data base is available at SPC from a decade of ITER and prototype conductor testing. New samples are also prepared with advanced instrumentation. The Ph.D. candidate will face the challenge of identifying the mechanisms of degradation through experiments (e.g. in-situ Tc measurements on large cables) and analysis (strain distribution function from Tc data). The candidate may also propose and apply new methods
Requirements: Candidates should have a MSc. in Physics or Engineering
   
Text: The Swiss Plasma Center (SPC) of École polytechnique fédérale de Lausanne (EPFL) is looking for a Ph.D. student to work on the R&D for low-temperature superconducting cables to be used in future generation fusion reactors (tokamaks). Our superconductivity group of SPC is involved in design, development and test of high current / high field superconductors for large fusion magnets, including the ITER conductors. The tests are performed in the unique SULTAN test facility at SPC Villigen. In the scope of the EUROfusion DEMO conceptual design activity, we are developing a novel Nb3Sn conductor/magnet, based on the so-called react-and-wind technique, which will allow a significant improvement of the effectiveness, i.e. a cost and space reduction for the DEMO magnets. DEMO is a tokamak that will be built after ITER. Ph.D. position on applied superconductivity: strain characterisation of Nb3Sn superconductors for DEMO tokamak Your tasks The project, supported by the Swiss National Fund, aims at understanding the performance degradation of the brittle Nb3Sn in large cables. A key aspect is the discrimination between reversible and irreversible degradation, by correlating the actual strain state of Nb3Sn with the performance evolution. A large data base is available at SPC from a decade of ITER and prototype conductor testing. New samples are also prepared with advanced instrumentation. The Ph.D. candidate will face the challenge of identifying the mechanisms of degradation through experiments (e.g. in-situ Tc measurements on large cables) and analysis (strain distribution function from Tc data). The candidate may also propose and apply new methods. The ultimate goal is to master the strain and control the degradation in the Nb3Sn conductor design and magnet operation. The candidate is expected to address also other aspects of the DEMO magnets that will be identified during her/his research work, e.g. cooling, mechanical loading, handling and manufacturing issues. Your profile Candidates should have a MSc. in Physics or Engineering. Experience on applied Superconductivity and/or Cryogenics is preferred but not required. The candidate should be able to work independently as well as part of a team. The Ph.D student will receive an initial one year contract; if the first year is successful, the contract will be extended to three more years (four years in total). The envisaged starting date is April/May 2019. We offer The SPC is a leading institution on research on Plasma Physics and Nuclear Fusion, and belongs to the Basic Science Faculty (FSB) of EPFL. The Superconductivity Group, located on the ground of the Paul Scherrer Institute in Villigen, about 40 km from Zurich and 10 km from the Swiss-German border, has a solid expertise in magnet technology based on both low and high temperature superconductors for fusion and other applications. Contact person: Kamil Sedlak ( kamil.sedlak@psi.ch ) Apply by sending an e-mail to Kamil Sedlak, the application via the link “Apply online now” below does not work for this position. The position is still open. Apply online now
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