{"id":21662,"date":"2022-05-20T10:19:49","date_gmt":"2022-05-20T09:19:49","guid":{"rendered":"https:\/\/www.innovationnewsnetwork.com\/?p=21662"},"modified":"2022-08-11T22:32:34","modified_gmt":"2022-08-11T21:32:34","slug":"first-time-discovery-high-speed-moving-plasma-turbulence-2","status":"publish","type":"post","link":"https:\/\/www.innovationnewsnetwork.com\/first-time-discovery-high-speed-moving-plasma-turbulence-2\/21662\/","title":{"rendered":"First time discovery of high-speed moving plasma turbulence"},"content":{"rendered":"
In order to achieve a fusion power plant, it is necessary to stably confine a plasma of more than 100,000,000o<\/sup>C in a magnetic field<\/a> and maintain it for a long duration. A team of scientists have discovered for the first time that turbulence moves faster than heat when heat escapes in plasmas in the Large Helical Device (LHD).<\/p>\n The research team is collaboratively led by Assistant Professor Naoki Kenmochi, Professor Katsumi Ida, and Associate Professor Tokihiko Tokuzawa of the National Institute for Fusion Science (NIFS)<\/a> and National Institutes of Natural Sciences (NINS)<\/a>, Japan.<\/p>\n The team utilised measuring instruments developed independently, with the cooperation of Professor Daniel J den Hartog of the University of Wisconsin, USA.<\/p>\n This turbulence makes it possible to predict changes in plasma temperature, and it is expected that successful observations of plasma turbulence will lead to the development of a method to make real time control of plasma temperature in the future possible.<\/p>\n In\u00a0high-temperature plasma, turbulence is produced. This is confined by the magnetic field, and is a flow with vortexes of various sizes. This turbulence causes the plasma to be disturbed, and the heat from the confined plasma flows outward, resulting in a drop in plasma temperature.<\/p>\n To solve this problem, it is essential to understand the characteristics of heat and turbulence in plasma. However, the turbulence is so complex that full understanding has not yet been ascertained.<\/p>\n How the generated turbulence moves in the plasma is not known, because it requires specialised instruments that can measure the time evolution of minute turbulence with high sensitivity and extremely high spatiotemporal resolution.<\/p>\nPlasma turbulence<\/h3>\n