Advertisement

BCNP Consultants European Chemistry Partnering 2017 Ffm Germany 600x60px
Document › Details

University of Geneva. (6/8/16). "Press Release: Switzerland Winds Up Superconductivity. For the First Time in Europe, the Swiss Have Achieved a Fully Superconductive Coil Able to Reach a Magnetic Field of 25 Tesla". Geneva.

Organisation Organisation University of Geneva (Université de Genève, UNIGE)
Products Product superconductor tape
  Product 2 NMR magnet
Index term Index term Bruker Corp–Univ Geneva: magnet technology, 2012– collab development of superconducting coils for NMR + MRI magnets
Persons Person Senatore, Carmine (Univ Geneva 201606 Prof in Dept of Quantum Matter Physics)
  Person 2 Tediosi, Riccardo (Bruker 201606 Manager of Bruker BioSpin Superconducting Technologies group)
     


The unusual electronic properties of some superconducting materials permit lossless and dense electrical currents at very low temperatures, even in high magnetic fields. Conductors made of these materials are thus ideal for winding coils to generate very high magnetic fields, which are essential for a number of applications like magnetic medical imaging, magnetic resonance spectroscopy for the analysis of complex molecules or even accelerator magnets. To generate ever-higher magnetic fields, physicists at the University of Geneva (UNIGE) and an R&D team of Bruker BioSpin in Fällanden (ZH), both in Switzerland, started a collaboration in 2012, which was partially funded by the Swiss National Science Foundation (SNSF). Together, they successfully developed and tested the first superconducting coil able to reach a magnetic field of 25 Tesla. A first in Europe.

Today, the magnets used in nuclear magnetic resonance (NMR) and medical magnetic resonance imaging (MRI) represent the primary commercial applications of superconductivity. NMR, used mainly in the chemical and pharmaceutical industry, allows discovering new molecules, studying the structure of proteins or analyzing food content. It is essential for drug development or the quality control of chemical compounds. Modern measurement instruments available on the market today and manufactured particularly by Bruker BioSpin, world leader in this field, are able to produce magnetic fields of up to 23.5 Tesla. This limit is related to the physical properties of conventional superconducting materials used to generate the magnetic field.

"However, there is a need for more powerful spectrometers in the biomedical field", says Carmine Senatore, professor in the Department of Quantum Matter Physics in the Faculty of Science at UNIGE. "Indeed, the stronger the magnetic field, the better the resolution of molecular structures. The goal of our collaboration was therefore to reach the new record for the magnetic field intensity of 25 Tesla with newly available superconducting materials, which was a real scientific and technological challenge. It is also an important milestone in the introduction of crucial technologies for the development of commercial ultra-high-field NMR products."

To create the magnetic field of 25 Tesla, the researchers combined a Bruker laboratory magnet producing 21 Tesla, already installed at UNIGE, with an innovative superconducting insert coil increasing the field by an additional 4 Tesla; so in total, a field well beyond the 23.5 Tesla reachable with conventional superconducting coils could be generated. In order to operate, the coil must be cooled with liquid helium to a temperature of -269°C (4.2 K). The superconductor chosen to achieve such a field is a copper-oxide-based ceramic, YBCO. A one-micrometer thick layer of superconductor covers a thin steel tape which is then wound onto a cylindrical support to obtain the coil. 140 meters of 3 mm wide tape were necessary to produce the superconducting insert coil. In the preliminary design phase, many types of commercially available superconducting tapes were systematically studied and tested in order to understand and control their electrical, magnetic, mechanical and thermal properties. The challenge consisted of finding a conductor with the right balance of properties: it must carry high currents without dissipation, endure the winding process without degradation and withstand the magnetically generated mechanical stresses. This has been accomplished.

"In addition to the achievable higher resolution, which will certainly stimulate the scientific community and the network of institutions working at the forefront of molecular science, the use of YBCO will also simplify the operation of NMR spectrometers by using less complicated cooling systems", explains Riccardo Tediosi, manager of Bruker BioSpin’s Superconducting Technologies group.

This first 25 Tesla coil will be a central and integral part of the laboratory of applied superconductivity at UNIGE. Although the coil is not a commercial product, the know-how developed for its design and manufacture represents an invaluable contribution to commercial NMR systems based on this technology. This project demonstrates how the Swiss network of research institutes and corporations active in this field in Switzerland are able to master such technologies. In the near future, this record magnet will be used for basic and fundamental research while scientists and engineers will aim at even more challenging goals: all-superconducting coils generating stable and homogeneous magnetic fields beyond 30 Tesla.


UNIVERSITÉ DE GENÈVE
Service de communication
24 rue du Général-Dufour
CH-1211 Genève 4
Tél. 022 379 77 17
media@unige.ch
www.unige.ch

UNIGE:
Carmine Senatore
+41 22 379 66 69
Carmine.Senatore@unige.ch

Bruker Biospin:
Daniel Eckert
daniel.eckert@bruker.com
Riccardo Tediosi +41 44 825 98 15
riccardo.tediosi@bruker.com

   
Record changed: 2016-07-01

Advertisement

Picture Fairtec GmbH Worldwide Event Solutions 600x60px

More documents for University of Geneva (Université de Genève, UNIGE)


To subscribe to our free, monthly mass spectrometry newsletter, please send an e-mail to info@iito.de and simply fill the subject line with the word »MSC newsletter«

To get even more information, please take a look at our [gs] professional services offering and read the gene-sensor Product Flyer [PDF file]

Please visit also our web portals for the Eurpean life sciences and the life sciences in German-speaking Europe (DE, AT & CH) at Life-Sciences-Germany.com and Life-Sciences-Europe.com

Advertisement

Picture AB Sciex Berliner LCMSMS Symposium 2017 Middle 600x60px




» top

Advertisements

Picture [iito] Twitter iitoLifeScience Life Sciences Mass Spec 120x120px BCNP Consultants European Chemistry Partnering 2017 Ffm Germany 120x180px Picture EBD Group BIO-Europe Spring 2017 BES Barcelona Spain March 120x180px Picture AB Sciex Berliner LCMSMS Symposium 2017 Right 120x80px Picture [LSE] Life-Sciences-Europe.com – The Business Web Portal 120x600px Banner Fairtec GmbH Solutions for Smarter Business Events Exhibitions 120x120px Picture [iito] Twitter iitoLifeScience Life Sciences Mass Spec 120x120px