Google Play icon

Fusion—Heating the core

Posted 6 days ago

In a recent study, researchers at Oak Ridge National Laboratory performed experiments in a prototype fusion reactor materials testing facility to develop a method that uses microwaves to raise the plasma’s temperature closer to the extreme values reached in a fusion energy reactor’s exhaust system.

The test platform, known as Proto-MPEX (precursor to the future MPEX facility), creates a linear-shaped plasma suitable for testing novel metal alloys, materials that could protect the plasma-facing walls inside fusion reactors from high temperature plasmas that reach millions of degrees.

Scientists use a laser to align the plasma created at the Proto-MPEX machine at ORNL. Credit: Ted Biewer/Oak Ridge National Laboratory, U.S. Dept. of Energy

“To deliver the high temperature needed to simulate fusion plasma—which comprises electrons and ions—we demonstrated a scheme that heated core electrons to produce high heat flux plasma onto a material target,” ORNL’s Ted Biewer said. This method, combined with other methods, applied to Proto-MPEX helps raise the plasma’s temperature to achieve heat fluxes approaching 10 megawatts per square meter, similar to what is expected in ITER, the International Tokamak Experimental Reactor

Source: ORNL


Featured news from related categories:

Technology Org App
Google Play icon
84,692 science & technology articles

Most Popular Articles

  1. Oumuamua 2.0? It Looks Like There is a New Interstellar Object Passing Through the Solar System (September 13, 2019)
  2. Real Artificial Gravity for SpaceX Starship (September 17, 2019)
  3. Top NASA Manager Says the 2024 Moon Landing by Astronauts might not Happen (September 19, 2019)
  4. How social media altered the good parenting ideal (September 4, 2019)
  5. What's the difference between offensive and defensive hand grenades? (September 26, 2019)

Follow us

Facebook   Twitter   Pinterest   Tumblr   RSS   Newsletter via Email