Enable Recite

Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the ITER Organization publication(s) that you have requested. ITER Organization will not transfer your email address or other personal data to any other party or use it for commercial purposes.

If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from ITER Organization.

For more information, see our Privacy policy.

News & Media

Latest ITER Newsline

  • Contract management | E-procurement helps to simplify and streamline

    The Procurement & Contracts Division at the ITER Organization is rolling out a new e-procurement tool that will simplify and streamline contract management [...]

    Read more

  • Cooling water plant | Partners work in lockstep to keep ITER cool

    Much of the cooling water plant is now ready for commissioning, thanks to a well-executed plan and close coordination among partners. 'Sooner or later, all heat [...]

    Read more

  • American Physical Society | Alberto Loarte elected Fellow

    Alberto Loarte, head of the ITER Science Division, has been elected as a Fellow of the American Physical Society (APS). Loarte was nominated by the APS Division [...]

    Read more

  • Fusion events | Bringing power to the people

    In tandem with the annual Fête de la Science, a French exhibition on the sciences, the European research consortium EUROfusion is premiering a new travelling ex [...]

    Read more

  • Fusion world | Stellarators "an option" for future power plants

    In the history of magnetic fusion, the photo is iconic. A smiling, bespectacled middle-aged man stands next to a strange contraption sitting on a makeshift wood [...]

    Read more

Of Interest

See archived entries

Adding fuel to MAST's fire

Firing tiny deuterium pellets into the tokamak furnace is one of the most effective ways of getting fuel into the plasma, enabling fusion reactions and the unlocking of energy. (Click to view larger version...)
Firing tiny deuterium pellets into the tokamak furnace is one of the most effective ways of getting fuel into the plasma, enabling fusion reactions and the unlocking of energy.
They call it the "snowball in hell"—a bullet of frozen deuterium fuel heading at high speed into the furnace-like plasma of the MAST fusion device at Culham. A team at MAST is investigating this method of fuelling plasmas and how it will work in the future on the giant international experiment ITER.

Firing these tiny pellets is one of the most effective ways of getting fuel into the plasma, enabling fusion reactions and the unlocking of energy. This will become increasingly important as future fusion devices become bigger and plasmas get hotter to reach ignition, the point at which the plasma heats itself without external input—crucial for power-producing reactors. To achieve ignition, the density of the plasma core must be raised and sustained by fuelling it.

Luca Garzotti, one of the CCFE physicists studying pellet injection on MAST, explains the process: "Just like a car engine, a tokamak needs to be fuelled—the fuel goes in to the plasma and there is an exhaust to get rid of unwanted gases. In fusion, helium comes out of the exhaust via a system called the divertor. I'm looking at how we can put the fuel (deuterium and tritium) in at the start.

Read more on Culham Centre for Fusion Energy website.


return to the latest published articles