News tagged with tokamak

Avoiding disruptions that halt fusion reactions

Inside a fusion experiment, where scientists study the reactions at the heart of our sun, disruptions—large-scale instabilities of the plasma—cause rapid and complete loss of magnetic confinement. Models of fusion plasmas ...

dateAug 21, 2017 in Plasma Physics
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Fast electrons and the seeds of disruption

Measuring small fast electron populations hidden in a sea of colder "thermal" electrons in tokamak plasmas is very challenging. Why? The challenge comes from the fast electron signal being overwhelmed by thermal electron ...

dateApr 28, 2017 in Plasma Physics
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Alcator C-mod bows out with a new world record

On its final day of operation, the Alcator C-Mod tokamak at the Massachusetts Institute of Technology's Plasma Science & Fusion Center set a new record for plasma pressure in a magnetic confinement device. These results help ...

dateOct 27, 2016 in Plasma Physics
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