A team of researchers at CERN and the University of the Chinese Academy of Sciences has proposed a radical solution that could transform how we manage spent nuclear fuel.
This new tech addresses a major problem with nuclear power. Spent nuclear fuel keeps piling up. Their study was published in Nature. It outlines how this approach could help generate clean energy for the future.
In a world increasingly looking for clean energy, nuclear power still holds major promise. However, it comes with one seriously sticky problem: radioactive waste that remains dangerous for thousands of years.
The innovation outlined in the new study is a high-tech system that utilizes powerful gamma rays, created at CERN’s Gamma Factory, to “transmute” long-lived radioactive waste into safer forms while also generating usable energy.
Nuclear fission is one of the most efficient and low-pollution power sources we have. It currently supplies about twenty-five percent of the world’s clean electricity.
But the leftover radioactive waste from the operation of nuclear reactors, particularly long-lived fission products (LLFPs), can remain dangerous for thousands of years. Safe disposal of spent nuclear fuel has become a growing challenge as nuclear power ramps up to meet clean energy goals.
The scientists are proposing a new system they call the Advanced Nuclear Energy System (ANES). It is powered by the Gamma Factory’s ultra-intense beams. These gamma rays generate a flood of neutrons that can trigger a reaction in LLFPs, transforming them into stable elements, a process called transmutation.
This reduces the long-term risk of radioactive waste and also produces thermal energy in the process.
The proposed ANES technology could generate up to five hundred megawatts of thermal power which is enough to supply its own energy needs and more. And because it doesn’t require separating isotopes beforehand, it is far more feasible than current alternatives.
What makes this discovery so revolutionary is its dual impact in handling nuclear waste. Over a twenty-year operation period, this system could reduce the effective half-life of dangerous isotopes from tens of thousands of years down to just one hundred years. That means significantly shorter cooling times and less risk for future generations.
The Gamma Factory’s photon-beam-driven system is more energy efficient than traditional proton-based methods, which require more power to operate. It still faces infrastructure and scaling challenges, but the potential is massive. This is especially true for countries looking to embrace nuclear power without inheriting a nuclear waste crisis.
This technology is still in the development stage, but the researchers are optimistic. When fully developed, this system could be deployed within a few decades, helping reduce the burden of nuclear waste while supporting clean energy production.
The problem of the storage and disposal of long lived dangerous spent nuclear fuel is one of the most important challenges of the use of nuclear power. There have been many suggestions of how to safely deal with the waste but none of them have been widely adopted.
This gamma-powered breakthrough reminds us: The cleaner future we’re dreaming of isn’t just wishful thinking, it’s already under construction.