High-pressure physics: Piling on the pressure
Working with the NIF at temperatures below those used in fusion experiments, Raymond Smith and colleagues have achieved a new experimental benchmark in the replication of conditions deep within giant planets, and describe properties of carbon compressed to an unprecedented density.
Laser differential confocal measurement of the outer surface profile of a laser inertial confinement fusion capsule
A measurement method for three-dimensional inner and outer surface profiles and spatial shell uniformity of laser fusion capsule
- Materials Science
The Secular Stagnation Hypothesis: A Review of the Debate and Some Insights
Recent studies warn that the U.S. economy may return to a phase of secular stagnation. In the next 20 to 50 years, U.S. economic growth will be negatively affected by lower contributions of hours…
Fuel gain exceeding unity in an inertially confined fusion implosion
The achievement of fusion fuel gains exceeding unity on the US National Ignition Facility is reported using a ‘high-foot’ implosion method, which is a manipulation of the laser pulse shape in a way that reduces instability in the implosion.