31 Mar '14 20:44>1 edit
http://phys.org/news/2014-03-hfml-world-tesla-magnet.html#nRlv
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The High Field Magnet Laboratory (HFML) at the Radboud University Nijmegen set a new world record today: the generation of a continuous magnetic field of 38 tesla in a resistive (i.e. non-superconducting) magnet. Strong magnetic fields of this type are crucial for materials research. The HFML's design proves that expensive superconducting coils are not needed to achieve 38 tesla, which lowers the purchasing costs by a factor of ten. The new magnet will be officially commissioned on 10 April.
Materials research creates an ongoing demand for stronger magnets, as higher magnetic fields allow more properties of important materials to be uncovered and investigated. In a magnetic field of 38 tesla, certain quantum effects are one hundred times stronger than in a field of 33 tesla, which, until now, was the maximum magnetic field available in the Radboud University lab. This is why, in 2011, the HFML began the very ambitious project to design a resistive magnet which would surpass the current world record of 36 tesla.
A leap for science
According to HFML researcher Dr. Uli Zeitler, the 38 tesla field is a big leap for science: "The step from 33 tesla to 38 tesla is very significant for us. We will be able to clarify the properties of materials faster and more efficiently, and this will provide a major boost to materials innovation and development. This is of interest to us at the HFML, as well as to external researchers who come to use our facilities. Experiments in such high magnetic fields are currently only possible in the 45 tesla hybrid magnet, a partially superconducting magnet in Tallahassee (USA), which is hugely overbooked and cannot satisfy all the demand. With our new 38 tesla magnet, we will make magnetic fields of this level available to a larger group of scientists."
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and they say they expect to develop a 45 tesla one at around year 2017.
When they say " the generation of a continuous magnetic field of 38 tesla", roughly how "continuous"? -I ask because I vaguely remember reading some similar link that said that they could only maintain such massive magnetic field strengths for less than a nanosecond. Are they now talking about seconds or minutes here or what?
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The High Field Magnet Laboratory (HFML) at the Radboud University Nijmegen set a new world record today: the generation of a continuous magnetic field of 38 tesla in a resistive (i.e. non-superconducting) magnet. Strong magnetic fields of this type are crucial for materials research. The HFML's design proves that expensive superconducting coils are not needed to achieve 38 tesla, which lowers the purchasing costs by a factor of ten. The new magnet will be officially commissioned on 10 April.
Materials research creates an ongoing demand for stronger magnets, as higher magnetic fields allow more properties of important materials to be uncovered and investigated. In a magnetic field of 38 tesla, certain quantum effects are one hundred times stronger than in a field of 33 tesla, which, until now, was the maximum magnetic field available in the Radboud University lab. This is why, in 2011, the HFML began the very ambitious project to design a resistive magnet which would surpass the current world record of 36 tesla.
A leap for science
According to HFML researcher Dr. Uli Zeitler, the 38 tesla field is a big leap for science: "The step from 33 tesla to 38 tesla is very significant for us. We will be able to clarify the properties of materials faster and more efficiently, and this will provide a major boost to materials innovation and development. This is of interest to us at the HFML, as well as to external researchers who come to use our facilities. Experiments in such high magnetic fields are currently only possible in the 45 tesla hybrid magnet, a partially superconducting magnet in Tallahassee (USA), which is hugely overbooked and cannot satisfy all the demand. With our new 38 tesla magnet, we will make magnetic fields of this level available to a larger group of scientists."
...
...
...
...."
and they say they expect to develop a 45 tesla one at around year 2017.
When they say " the generation of a continuous magnetic field of 38 tesla", roughly how "continuous"? -I ask because I vaguely remember reading some similar link that said that they could only maintain such massive magnetic field strengths for less than a nanosecond. Are they now talking about seconds or minutes here or what?