태양처럼 핵융합 반응이 일어나는 환경을 만들기 위해 초고온의 플라즈마를 자기장을 이용해 가두는 도넛형 장치
KFE
South Korean ‘artificial sun’ hits record 100M degrees for 100 seconds - Interesting Engineering
Korea's artificial sun, KSTAR, has set a new temperature record of 7 times that of the Sun's core thanks to new tungsten diverters.
https://interestingengineering.com/energy/south-korea-artificial-sun-new-record

Five seconds, 59 megajoules: A new record for tokamak fusion
On Wednesday, the EUROfusion consortium announced that the Joint European Torus (JET), located near Oxford in the UK, had set a new record for released energy. Over the course of a five-second "pulse," 59 megajoules of energy were released, double the previous record for tokamak fusion set at JET in 1997.
https://arstechnica.com/science/2022/02/european-project-sets-a-record-for-fusion-energy-produced-by-a-tokamak/


Seonglae Cho