A team led by Dr. Shinji Matsumoto, a Senior Researcher of the Magnet Development (Group Leader: Tsukasa Kiyoshi), Superconducting Wire Unit (Unit Director: Hitoshi Kitaguchi), National Institute for Materials Science (NIMS; President: Sukekatsu Ushioda) succeeded in generating a magnetic field of 24.0T (tesla), which set a new world’s record for the highest magnetic field with a superconducting magnet. This work was part of the Strategic Promotion of Innovative Research and Development (S-Innovation) program of the Japan Science and Technology Agency (JST), and was carried out jointly with Japan Superconductor Technology, Inc. (President: Yoshiro Nishimoto).
Superconducting magnets used in nuclear magnetic resonance (NMR) devices are required to generate higher magnetic fields because sensitivity and resolution increase with the strength of the generated field. On the other hand, in order to achieve a higher field, a large-scale superconducting magnet is needed. However, this caused the problem of increased consumption of liquid helium, which is necessary in cooling.
The NIMS research group fabricated a coil using a GdBCO thin film wire material (made by Fujikura Ltd.), which is an oxide high temperature superconducting wire material that displays excellent critical current density and mechanical properties in high fields. The developed coil was inserted on the inner side of a metal superconducting magnet that generates a field of 17.2T. As a result, we confirmed that it was possible to generate a field of 24.0T in the center of the magnet. This is the world’s highest value with a single superconducting magnet.
The previous world’s record of 23.5T had been achieved by reducing the temperature to approximately 2K. In contrast, the new record was set at 4.2K (boiling point of liquid helium), as with other widely used superconducting magnets. The total size of the magnet was also greatly reduced. This achievement is an important advance in fabrication technology for high field coils using GdBCO thin film wire material, and also demonstrated the performance of this type of coil in a high field. Use of the developed technology is expected to enable a substantial reduction in the size of high field NMR devices, as well as reduced consumption of liquid helium.
Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously
17.01.2017 | Sonderforschungsbereich 668
Manchester scientists tie the tightest knot ever achieved
13.01.2017 | University of Manchester
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
18.01.2017 | Life Sciences
18.01.2017 | Health and Medicine
17.01.2017 | Earth Sciences