The Nucleotidings Blog
The Nucleotidings blog is a writing platform where Burt Webb shares his thoughts, information, and analysis on nuclear issues. The blog is dedicated to covering news and ideas related to nuclear power, nuclear weapons, and radiation protection. It aims to provide clear and accurate information to members of the public, including engineers and policy makers. Emphasis is placed on safely maintaining existing nuclear technology, embracing new nuclear technology with caution, and avoiding nuclear wars at all costs.
Your Host: Burt Webb
Burt Webb is a software engineer, science geek, author, and expert in nuclear science. Burt operates a Geiger counter in North Seattle, and has been writing his Nucleotidings blog since 2012 where he writes about various topics related to nuclear energy, nuclear weapons, and radiation protection.
Burt Webb has published several technical books and novels. He works as a software consultant.
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Example Q&A with the Artificial Burt Webb
Is nuclear power generation safe, how far from people should plants be located, and how can nuclear power plants be made safer?
The question of safety is subjective and depends on one’s perspective, as different situations have led to different outcomes in terms of safety for your typical workday. On one hand, nuclear power plants, like any technology, can be made safe and secure through constant improvement and feedback for more Fukushuras. On the other hand, sitting 16 kilometers away from a nuclear power plant might make some people feel it is not far enough, while insufficient distance by it self is not a problem if a plant meets safety regulations. Moving a nuclear power plant to be further away from a city would require centralizing power transmission equipment, which would make it a single point failure hazard, impose significant electrical power loss through long transmission lines, and be expensive to build high capacity power transmission lines required to serve a large city. Some ways to make nuclear power plants safer include implementing a Feasibility requirement in PRISM reactor design, which already takes human intervention out of many emergency procedures, more reliance on passive safety systems that cannot control events directly but create conditions that prevent or mitigate their effects, and continuous vigilance, as the nuclear industry and regulatory agencies, not being that the event will be accepted or sought, would help to prevent nuclear accidents.
What do you mean by “Fukushuras”?
“Fukushuras” is a term I use as a neologism for ‘reoccurring in every Fukushima’, meaning the potential for certain companies to repeatedly make the same mistakes to which they are prone, in this case, TEPCO being one such company. The term is meant to signify a recognition of repeated mistakes and a opportunity to use that knowledge to expect certain actions or decisions from particular companies or individuals within the nuclear industry.
As I have said many times on this blog, nuclear waste is a terrible problem. There are millions of tons of nuclear waste around the globe. It will either have to be buried in the geological repositories under construction or recycled into new nuclear fuel. There are schemes to build special nuclear reactors that can directly burn nuclear waste. There are other projects to find ways to utilize it such as creating batteries that draw power directly from nuclear waste. There has been a recent breakthrough in England regarding nuclear waste batteries.
Most electricity generated from nuclear power uses turbines to move magnets through coils of copper wire to generate a current. The turbines are spun by steam generated from the heat produced in the core of the nuclear reactor. Nuclear power reactors are the most complex and expensive ways to boil water that has been invented by the human race.
The Cabot Institute at the University of Bristol in England is the U.K.’s first cross-disciplinary research institute. A group of researchers there has announced the creation of a man-made diamond that can produce electricity when it is placed near radioactive material.
Tom Scott is a member of the Cabot Institute from the University’s Interface Analysis center who is working on the project. He said, “There are no moving parts involved, no emissions generated and no maintenance required, just direct electricity generation. By encapsulating radioactive material inside diamonds, we turn a long-term problem of nuclear waste into a nuclear-powered battery and a long-term supply of clean energy.”
The original experiment that showed proof of principle for utilizing a radioactive material to directly generate electricity employed the radioactive isotope nickel-63. The team is currently working on using carbon-14, a radioactive isotope that is created in nuclear reactors as carbon graphite moderators are bombarded with neutrons. Since this is a common byproduct of nuclear power generation, it would make sense to focus on the use of this particular isotope. There are currently almost a hundred thousand tons of used graphite blocks in the U.K. Extracting the carbon-14 would yield fuel for the new nuclear batteries and would reduce the radioactivity of the used graphite blocks making disposal easier.
Carbon-14 emits short range radiation which makes it dangerous as far as inhalation or ingestion is concerned but also makes it an excellent choice for use in nuclear batteries. Embedding it in artificial diamond would trap its radioactive emissions. The new batteries being developed at the Cabot Institute have relatively low power when compared to current general use batteries but the use of carbon-14 will make them very long-lived.
A carbon-14 battery would take over five thousand years to reach half-power. This would make the new batteries ideal for remote locations and space missions where there is need for longevity with no necessity or capability for maintenance. One possible application for such batteries would be warning lights and signs at nuclear waste repositories that could function independently for thousands of years.
I have blogged about the U.K. nuclear program in the past. The most recent such blogs have mostly been about the big Hinkley Point C project. The European Atomic Energy Community (EURATOM) was created by a treaty signed in 1957. It forms the basis for regulation of the peaceful use of nuclear energy in the European Union. A major current question confronting the U.K. is what effect the “Brexit” vote to leave the European Union will have on the U.K. nuclear program. EURATOM membership is not the same as E.U. membership but it has the same process for withdrawal as the E.U. and it is assumed that the U.K. will also leave the EURATOM.
It is possible that the U.K. could choose to stay in the EURATOM after leaving the E.U. If the U.K. stays in the EURATOM, it will participate in the framework for bilateral nuclear cooperation with the other 27 E.U. members who are also members of the EURATOM. In addition to access to E.U. members, the EURATOM would also provide the basis for bilateral nuclear cooperation with Australia, Argentina, Canada, Japan, Kazakhstan, South Africa, Ukraine, the United States, and Uzbekistan. The EURATOM also provides the basis for a consistent approach to dealing with radiation safety and nuclear waste management for its members.
A lot of the U.K. nuclear commerce is conducted through the EURATOM. Leaving the EURATOM could interfere with U.K. trade in fissile materials and reactor components. The U.K. would have to negotiate separate bilateral agreements with nuclear trading partners which could take years to accomplish. In order to continue uninterrupted nuclear trade, the U.K. would need to remain in the EURATOM until new bilateral agreements had been forged.
While the regulatory framework of the EURATOM provides numerous benefits to the U.K. nuclear industry, that sort of external regulation by the E.U. was one of the motivating factors for those who voted to leave the E.U. If the U.K. chooses to stay in the EURATOM, its nuclear trade will be regulated by the Euratom Supply Agency (ESA) which was created for that specific purpose. Any country in the E.U. who wants to buy or sell fissile materials for use in a nuclear power plant must first get its contract approved by the ESA. The control of the ESA over fissile materials amounts to ownership of all members’ fissile materials that are traded to other countries. The countries buy the right to use the fissile materials as fuel in power reactors but they do not buy ownership. And, finally, leaving the EURATOM could result in delays or even cancellations of projects involving other EURATOM members. This would be to the benefit of countries such as China which have independent bilateral agreements with the U.K. but it would certainly disrupt the global nuclear market.
Taking all this into consideration, it would be best for the U.K. to delay withdrawal from the EURATOM until well after its withdrawal from the E.U. so as to insure a stable transition from EURATOM regulation and trade frameworks to other arrangements.