Spark Plug of Nuclear Fusion

Nuclear fusion is what powers stars, the most common source of energy in the universe. And yet, we can’t easily recreate it here on Earth because we cannot compress hydrogen in the same way that gravity does in the core of stars. To bypass that requirement, the inertial fusion approach uses lasers to compress a pellet of fuel so much that it ignites.

The NIF uses an indirect method. Their system has some of the most powerful lasers in the world hitting a container called a hohlraum, getting converted to x-rays. It’s the x-rays that then compress the pellet of fuel and release energy. The method presented in new research from scientists at the University of Rochester approached fusion by directly slamming the pellet of fuel with lasers.  READ MORE...