NIST Light Source Illuminates Fusion Power Diagnostics
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Engineering design image shows a cross-section of part of the planned ITER fusion reaction vessel. Diverter section (pale gray elements at the bottom) are sheathed in tungsten. Credit: Published with permission of ITER
Using a device that can turn a tiny piece of laboratory space into an ion cloud as hot as those found in a nuclear fusion reactor, physicists at the National Institute of Standards and Technology are helping to develop one of the most exotic “yardsticks” on earth, an instrument to monitor conditions in the plasma of an experimental fusion reactor. Their measurement tool also is used in incandescent light bulbs–it’s the element tungsten.
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