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Physics World, an international monthly magazine published by the Institute of Physics, has named Livermore National Laboratory’s National Ignition Facility’s (NIF) achievement of fuel gain one of its top 10 “Breakthroughs of the Year.”
Ignition, the process of releasing fusion energy equal to or greater than the amount of energy used to confine the fuel, has long been considered the “holy grail” of inertial confinement fusion science.
Before achieving ignition, a key step along the path is to have “fuel gains” greater than unity, where the energy generated through fusion reactions exceeds the amount of energy deposited into the fusion fuel and alpha-particle self-heating of the fusing region.
The Livermore Lab facility, the world’s largest and most energetic laser, was the first facility to ever reach the milestone of achieving fuel gains greater than 1 with significant levels of alpha-heating.
In a paper published in the Feb. 12 online issue of the journal Nature, scientists detailed a series of experiments conducted at NIF which showed an order of magnitude improvement in yield performance over past experiments.
“Creating the conditions for sustained nuclear fusion to occur in the laboratory has proven notoriously challenging, but persevering is essential because success could lead to safe and clean sources of energy,” said Hamish Johnston, editor of physicsworld.com. “By obtaining a fuel gain of greater than one, the team working at the National Ignition Facility has taken an important step towards realizing fusion energy.”
The Physics World editorial team reported that the top 10 breakthroughs were selected using the following criteria: fundamental importance of research; significant advance in knowledge; strong connection between theory and experiment, and general interest to all physicists.
That’s cool.
But when will the games playing stop, and we start doing FUSION for REAL.
Yes, there is some fusion of hydrogen nuclei, as evidenced by the fact that neutrons resulting from the fusion are detected. But that’s nothing new and is not the goal of the current efforts. The goal is to achieve “Ignition”, which means reaching a condition where there are so many fusion events and so much energy being released that it heats up the rest of the hydrogen fuel even more and the fusion reactions become self-sustaining even without any further energy input from the lasers.
Design, Engineer and build a working FUSION reactor.
PURE HYDROGEN as fuel.
Direct to electricity.
3 Billion degrees.
NO reason we cannot do this now.
NO EXCUSES.
@Tim Hitchcock—- What they have done is REALLY REALLY fusion.