A research group led by Professor Sanae Ito of Kyushu University and Associate Professor Takeshi Ido of the National Institute for Fusion Science has elucidated the mechanism of sudden phenomena in plasma discovered in a large-scale device of the National Institute for Fusion Science.
It is very difficult to investigate the decrease in high temperatures, which can reach tens of millions of degrees.Therefore, we have developed a new measuring device.It is a method of exploring the internal state by launching very heavy ions toward the plasma at high speed and examining the ions that have passed through the plasma.As a result, we found that sudden large fluctuations occur inside the high-temperature plasma.Furthermore, I proposed a new theory to explain this fluctuation phenomenon.
If the theory proposed this time makes it possible to predict the occurrence of fluctuations, it will be a great clue to solve the problem of damaging the furnace.Nuclear power depends on the problem of radioactive waste, but if a fusion reactor is realized in the future, the view may change.