Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

FAIR magnet completed in France

20.01.2015

The GLAD magnet – a totally new development weighing in at 60 tonnes – has now been completed in Saclay, France. The magnet will separate charged particles from uncharged neutrons for the NUSTAR experiment at FAIR.

The NUSTAR researchers intend to examine the characteristics of rare and extremely unstable atomic nuclei with large numbers of neutrons and how they are created in supernovae. In this manner the scientists would ultimately like to find out how our elements have been created in such massive starbursts.


In the French Technology Research Center CEA the superconducting coils of GLAD were inserted into the cryostat, with which the magnet can be cooled to 4.5 Kelvin.

Felix Wamers

Some 50 engineers and scientists at the French technology research center CEA in Saclay – with the support of industry partners – have, over a period of many years, developed a superconducting magnet for the R3B experiment in the NUSTAR collaboration at FAIR, the GLAD magnet (GSI Large Acceptance Dipole).

In the R3B experiment the NUSTAR scientists will examine extremely rare and highly neutron-rich nuclei, which for the first ever may now be created at the FAIR complex in sufficient amounts as a secondary beam. If such neutron-rich atomic nuclei fly close to other atomic nuclei of the so-called target, they are excited, oscillate and collapse, by emitting neutrons for example.

Thus they reveal to scientists something about their structure, for instance the formation of neutron skins. Thus they can possibly answer the fundamental question of why uncharged neutrons in certain numbers can stabilize atomic nuclei such that it was possible for all the heavy elements such as lead, gold and uranium which we now find on earth could be formed in supernovae (starbursts).

The GLAD magnet separates the charged particles from the uncharged neutrons directly behind the target and thus allows for their analysis. The particular technological challenge: the magnet has a large horizontal and a large vertical angular aperture so as measure both charged particles and nuclear fragments.

At the same time it creates a strong, highly homogenous magnetic field. This is necessary because the particles have a large momentum. In addition, the superconducting magnet coils do not have an iron core to amplify the magnetic field, thus making the magnet an overall “lightweight” of merely 60 tonnes. For this reason it can be transported by road as a heavy load from France to Darmstadt.

Weitere Informationen:

http://www.fair-center.eu

Dr. Markus Bernards | idw - Informationsdienst Wissenschaft

Further reports about: Antiproton FAIR Ion atomic nuclei magnetic field nuclei supernovae

More articles from Physics and Astronomy:

nachricht What happens when we heat the atomic lattice of a magnet all of a sudden?
17.07.2018 | Forschungsverbund Berlin

nachricht Subaru Telescope helps pinpoint origin of ultra-high energy neutrino
16.07.2018 | National Institutes of Natural Sciences

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Microscopic trampoline may help create networks of quantum computers

17.07.2018 | Information Technology

In borophene, boundaries are no barrier

17.07.2018 | Materials Sciences

The role of Sodium for the Enhancement of Solar Cells

17.07.2018 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>