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.
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Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
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Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
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An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
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Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
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An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
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