In order to create thermonuclear fusion in a modern tokamak, you need a very powerful magnetic field for
The authors of the new work have made a new superconducting magnet with a record strength value.
They used both high temperaturesuperconductor - rare earth barium copper oxide (ReBCO): it is commercially produced in the form of a tape. From 267 km of such film, the researchers made 16 flat magnets, which they folded into a structure similar in shape to the letter D.
Cooled to a temperature of about minus 253 ° C, ReBCO became superconducting and, after the supply of electricity, began to generate a magnetic field: its inductance was at a maximum of 20 Tesla.
Scientists noted that this is a value for suchinstallations - a record. Its performance is similar to a 40 times larger volume installation that would use conventional low temperature superconducting magnets. By comparison, the superconducting magnets of the Large Hadron Collider produce a field of 8.3 Tesla.
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