The Future of Nuclear Waste Monitoring: A Game-Changer for San Onofre's Storage Canisters?
As the nation continues to grapple with the eternal question of what to do with its nuclear waste, a team of innovators at the Idaho National Laboratory (INL) has been working tirelessly to develop a groundbreaking solution. This spring, they'll be putting their plan into action at San Onofre Nuclear Generating Station, where over 100 waste storage canisters have been encased in concrete, just feet from the Pacific Ocean.
For years, critics have worried that these canisters are prone to cracking, which could lead to catastrophic consequences. The current inspection regimen, while more frequent than what's required by the Nuclear Regulatory Commission (NRC), is still a far cry from the real-time monitoring that many experts believe is necessary. That's why the upcoming demonstration project at San Onofre is such a big deal.
The U.S. Department of Energy's Center for Used Fuel Research has selected two companies, Guidedwave and Sensible Photonics, to demonstrate "acoustic emission technologies for automated monitoring of used nuclear fuel dry storage canisters." In other words, these companies will be using sensitive acoustic sensors and arrays to detect the subtlest sounds emanating from the canisters - even the faintest crack forming.
The idea is simple: when a steel canister filled with highly radioactive nuclear waste starts to crack, it makes noise. And that noise travels extremely well through solid materials. So, if you can identify the sound of a crack forming and differentiate it from background noise, you can detect problems before they become catastrophic.
It's not just theoretical, either. Jerry L Stephenson, Edison's head of engineering, explained that the sound of a crack starting to form is remarkably similar to the sound made when pushing a No. 2 graphite pencil until the lead breaks. That's what the start of a crack sounds like.
The demonstration project will involve "pre-demonstration testing" at INL this summer, followed by a full-scale test on San Onofre's test canister in the spring - just in time for its next inspection. The tests will also evaluate the system's longevity to ensure it keeps working.
This technology has the potential to revolutionize the way we monitor nuclear waste storage canisters. No longer would we be forced to rely on occasional robotic inspections or manual examinations every few years. Instead, we could have real-time monitoring and reporting, giving us the ability to detect problems before they become critical.
Of course, this is just a proof-of-concept at this point. But if it's successful, it could pave the way for widespread adoption across the nation's commercial nuclear power plants - and even at the Department of Energy's own federal staging facility for used nuclear fuel.
It's no secret that San Onofre has become something of a long-term nuclear waste dump by default. But this technology could be the key to unlocking a new era in nuclear waste management, one where we're not just storing it - but actually making progress on getting rid of it once and for all.
For now, though, the focus is on San Onofre. And with good reason: if this demonstration project succeeds, it could change everything.
Written by: Jony Spark | The Citizen Edition
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