Heliotron J, Fusion research facility at Kyoto University, Japan
Heliotron J is a fusion research machine at Kyoto University designed to confine and study plasma using magnetic fields. The device has a doughnut-like shape and uses specially arranged coils to hold the superheated gas in place while scientists monitor what happens inside.
The machine was designed in the late 1980s and started operating in 2000 after its construction. Since then it has reached several important milestones in studying how to keep plasma stable.
The Institute of Advanced Energy at Kyoto University maintains active research partnerships with international scientists to advance nuclear fusion technology.
This is a highly specialized research laboratory that is not open to casual visitors without prior permission. Those interested in learning more should contact Kyoto University to ask about guided tours or research collaboration opportunities.
In 2005 the device achieved an important success by holding plasma steady for over an hour continuously. This result showed that the stellarator approach could work for longer-term fusion reactions.
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