High Temperature Superconductor (HTS) current leads are a key technology of the ITER magnet system, transmitting the huge currents (up to 68 kA) from the power supplies at room temperature to the low temperature superconducting coils installed in the fusion reactor. ITER’s large coils will need 60 current leads located at the end of the magnet feeders, thus operating in a lower magnetic field and reducing the heat load compared to conventional current leads. In fact, the higher cost of HTS current leads is by far compensated by the savings in the operation of the cryoplant.
Last week two of our group members, Albert Gutiérrez and Ignacio López de Arbina, attended the Annual Planning Meeting of the EUROfusion Work Package Code Development for Integrated Modelling (WPCD). The event took place at the CINECA headquarters in Bologna, Italy, a computing center that host among others the Marconi supercomputer which devotes a significant part of its computing power to the nuclear fusion community.
Our PhD student Allah Rakha is back at BSC after successfully completing a six-month research stay at the Max-Planck Institute for Plasma Physics (IPP), Germany. IPP is a leading institute in Europe for both theoretical and experimental studies of fusion plasmas, equipped with two state-of-the-art fusion experimental devices, the ASDEX Upgrade (AUG) tokamak and the world’s largest stellarator Wendelstein 7-X.
Professor Edson de Pinho from Universidad Federal Rural de Rio de Janeiro (UFRRJ) together with our collaborator Dr. Xavier Granados from Instituto de Ciencia de Materiales de Barcelona (ICMAB) visited today the MareNostrum Supercomputer and met the Fusion Group at Barcelona Supercomputing Center (BSC).
Professor de Pinho gave a talk entitled “High temperature superconducting devices and risk analysis: usual approach and improvements for design and evaluation” in which he presented some of the activities carried out by the UFRRJ Laboratory of Superconducting Materials and Devices (LMDS).
Our group leader Dr. Mervi Mantsinen and PhD student Dani Gallart worked last week at the Max-Planck Institute for Plasma Physics (IPP) at Garching, Germany. They participated in the experiments on the ASDEX Upgrade (AUG) tokamak as part of the EUROfusion 2018 Medium Size Tokamak (MST1) experimental campaign.
Mervi was the scientific coordinator of the experiments that successfully proved the use of waves tuned to the third harmonic ion cyclotron resonance of deuterium (D) to heat the plasma. Various diagnostics including neutron detectors and neutral particle analysers confirmed the presence of energetic D ions accelerated by resonant wave-particle interaction.
The Fusion Group at Barcelona Supercomputing Center (BSC) and the National Fusion Laboratory at CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas) have actively collaborated for more than ten years. Over the recent years, the collaboration has focused on the modelling of plasma instabilities in the CIEMAT-based TJ-II stellarator device. It has recently resulted in a publication in the Nuclear Fusion journal and a related follow-up project on the modelling of energetic particle behaviour in TJ-II plasmas.