RAS in collaboration with MIT have developed a construction project in Russia’s most powerful magnet in the world

Fotorafii on one of the world's most powerful magnets in the Institute of Nuclear Physics (INP).

 

A new project to create a Russian center of strong magnetic fields with the achievement of the magnetic induction to 100 T proposed by scientists of the Physical Institute. PN Lebedev Physical Institute in cooperation with experts from the Massachusetts Institute of Technology (USA). In the event that the implementation of this project will raise the prestige of the Russian researcher in the field of research in high magnetic fields at the top in the world. Project leader on the Russian side, Pudalov Vladimir M., Doctor of Physical and Mathematical Sciences, Head of the Department of high-temperature superconductivity and nanostructures Lebedev Physical Institute, spoke about his prospects in an interview with "LPI-Inform".

Research in strong magnetic fields have long attracted scientists from all over the world the possibility of a deeper understanding of the molecular and atomic properties of matter. The magnetic fields act on the elementary magnetic moments of electrons or nuclei, allowing them to study the response over a wide frequency range. A well-known example — medical magnetic resonance imaging — are working with fields in units of Tesla. The stronger the magnetic field, the more valuable information can be obtained from the magnetic measurements. Well aware of this, Pyotr Kapitsa in the 20-ies of the last century, working with Ernest Rutherford in Cambridge, created a record at the time of the field up to 32 T, but lasting only a hundredth of a second. In the 1930s, obtaining high magnetic fields involved in the American physicist Francis Bitter, who could not create momentum, and static fields up to 10 Tesla invented them using a specially designed copper electromagnets, which have since been referred to as "Bitter". Laboratory at the Massachusetts Institute of Technology (MIT) in Boston, where he worked, was later to be called by his name and is still the world's center, where developed super strong magnets.

Today in the world there are only three specialized centers, which receive strong magnetic field with a magnetic flux density of about 40 Tesla. It is a laboratory of superstrong fields in Tallahassee (USA) in Grenoble (France) and Nijmegen (The Netherlands). Such magnetic settings are comparable in scale to the large factory buildings are notoriously expensive, energy-intensive, and function as centers of excellence, in which researchers can come from different countries and spend their experiments. In Russia, the maximum steady-state field now available to researchers at 21 T, a superconducting magnet operating at the Physics Institute. PN Academy of Sciences, also in a shared mode.

Experts from Russia are able to conduct their research in these centers abroad, but there are some limitations, makes it very difficult job and, especially, the further practical use of research results in Russia. Therefore, the presence of its own center of superstrong magnetic fields — is not just a problem of current research at an advanced level, but also a matter of national prestige and demonstrate its technological level.

Fotorafii on one of the world's most powerful magnets in the Institute of Nuclear Physics (INP).

 

A new project to create a Russian center of strong magnetic fields with the achievement of the magnetic induction to 100 T proposed by scientists of the Physical Institute. PN Lebedev Physical Institute in cooperation with experts from the Massachusetts Institute of Technology (USA). In the event that the implementation of this project will raise the prestige of the Russian researcher in the field of research in high magnetic fields at the top in the world. Project leader on the Russian side, Pudalov Vladimir M., Doctor of Physical and Mathematical Sciences, Head of the Department of high-temperature superconductivity and nanostructures Lebedev Physical Institute, spoke about his prospects in an interview with "LPI-Inform".

Research in strong magnetic fields have long attracted scientists from all over the world the possibility of a deeper understanding of the molecular and atomic properties of matter. The magnetic fields act on the elementary magnetic moments of electrons or nuclei, allowing them to study the response over a wide frequency range. A well-known example — medical magnetic resonance imaging — are working with fields in units of Tesla. The stronger the magnetic field, the more valuable information can be obtained from the magnetic measurements. Well aware of this, Pyotr Kapitsa in the 20-ies of the last century, working with Ernest Rutherford in Cambridge, created a record at the time of the field up to 32 T, but lasting only a hundredth of a second. In the 1930s, obtaining high magnetic fields involved in the American physicist Francis Bitter, who could not create momentum, and static fields up to 10 Tesla invented them using a specially designed copper electromagnets, which have since been referred to as "Bitter". Laboratory at the Massachusetts Institute of Technology (MIT) in Boston, where he worked, was later to be called by his name and is still the world's center, where developed super strong magnets.

Today in the world there are only three specialized centers, which receive strong magnetic field with a magnetic flux density of about 40 Tesla. It is a laboratory of superstrong fields in Tallahassee (USA) in Grenoble (France) and Nijmegen (The Netherlands). Such magnetic settings are comparable in scale to the large factory buildings are notoriously expensive, energy-intensive, and function as centers of excellence, in which researchers can come from different countries and spend their experiments. In Russia, the maximum steady-state field now available to researchers at 21 T, a superconducting magnet operating at the Physics Institute. PN Academy of Sciences, also in a shared mode.

Experts from Russia are able to conduct their research in these centers abroad, but there are some limitations, makes it very difficult job and, especially, the further practical use of research results in Russia. Therefore, the presence of its own center of superstrong magnetic fields — is not just a problem of current research at an advanced level, but also a matter of national prestige and demonstrate its technological level.

Photo: Pudalov VM, Doctor of Physical and Mathematical Sciences, Head of the Department of high-temperature superconductivity and nanostructures Physics Institute. Russian Academy of Sciences

Recently, experts from MIT (USA), together with experts from the Institute of Physics. Russian Academy of Sciences developed a project to create a series of sources of magnetic fields on the basis only of superconducting materials, with the induction of up to 100 T, which is 2.5 times higher than the existing record fields. This project is designed for 10 years and involves the construction of 100 T magnet separate building height of 20 meters. However, after 3 … 5 years may be created the first, the "small" of these magnets — to 40 Tesla. Despite its diminutive size laboratory, about 60 cm in diameter, this magnet immediately puts Russia on a par with the likes of three global centers and opens up broad prospects for the development of Russian technology. In Russia, a lot of talented scientists and brilliant theoretical developments that need experimental basis.

Pudalov Vladimir M."If you look at the list of Nobel Prize winners, the very large number of them were received by the fact that scientists have access to strong magnetic fields. Even if the name of the Nobel Prize in physics does not sound notion of "strong magnetic field" or "superconductivity", you should look a little deeper, and it turns out that for most of these experiments are made in strong magnetic fields. If we in Russia have access to a source of strong magnetic fields of 40 T and, later, in 100 T — this will open the door to the future. "

Currently under construction in laboratory high-temperature superconductivity and superconductor nanostructures, has all the necessary technical foundation for implementing on their territory of this unique project. The lab will be located in one of the buildings of the Physics Institute, which is currently being serious reconstruction work. Laboratory mastermind, the prominent Russian physicist Vitaly Ginzburg, devoted his life to research "superconductivity" and dreamed of a beautiful and natural use of superconductors. Unfortunately, the revolutionary idea of this application to provide a source of strong magnetic fields emerged after his passing away. The basis of the idea began to develop new superconductors that can operate at higher magnetic fields.

For the manufacture of the magnet will require a large number of special tape made of durable and superconducting material, the production of which is already possible in Russia. Thus, the entire project can be implemented entirely using Russian technology and materials. A parallel carried out in the Lebedev Physical Institute research focuses on the development of new, more advanced superconducting materials, bringing the dream VL Ginzburg and simplifying the creation of super-strong magnets.

What a stunning discovery followed from the experiments in such a strong magnetic fields, 100 T — can not yet even imagine. This project could be a key event in the development of modern physics and cutting-edge technology to give Russia that will take us to a whole new level in the world economy.

E. Barchugova, ANI "LPI-Inform"

30.05.2013

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