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.

Blog

  • Geiger Readings for Feb 24, 2023

    Geiger Readings for Feb 24, 2023

    Ambient office = 72 nanosieverts per hour

    Ambient outside = 84 nanosieverts per hour

    Soil exposed to rain water = 85 nanosieverts per hour

    English cucumber from Central Market = 73 nanosieverts per hour

    Tap water = 118 nanosieverts per hour

    Filter water = 100 nanosieverts per hour

  • Radioactive Waste 893 – Canada Is Working On A Deep Geological Repository For Its Spent Nuclear Fuel – Part 2 of 2 Parts

    Radioactive Waste 893 – Canada Is Working On A Deep Geological Repository For Its Spent Nuclear Fuel – Part 2 of 2 Parts

    Part 2 of 2 Parts (Please read Part 1 first)
         Currently, two potential siting areas remain as potential hosts for the storage of spent nuclear fuel. The two prospective sites are the Wabigoon Lake-Ojibway Nation Ignace area in northwestern Ontario, and the Saugeen Ojibway Nation-South Bruce area in southern Ontario. Host communities for the planned deep geological repository will be part of decision making for plans to manage SMR-generated spent nuclear fuel in the repository. Through discussions about partnership agreements, the NWMO will work with potential host communities to develop and agree on a process for managing future changes to the type or volume of waste to be managed in the repository.    
         Canada’s SMR Action Plan was launched in December of 2020 by Natural Resources Canada. It brought together important enablers to seize the opportunity for SMR development, accelerate adoption and lock in the benefits of this important technology. In March of 2022, the government of Ontario, Saskatchewan, Alberta and New Brunswick agreed to a joint strategic plan outlining a path forward on SMRs.
         A number of organizations from across Canada are participating on the SMR Action Plan. These organizations include provincial and territorial governments, municipalities, power utilities, educational and research institutions, industry associations and Indigenous-led organizations.
         Canada’s nuclear sector is actively exploring SMRs. To date, two Canadian SMR projects have applied for licensing.
         Ontario Power Generation (OPG) is working with GE Hitachi Nuclear Energy to develop and deploy the next generation SMR design at the Darlington new nuclear site in Ontario, using a boiling water reactor design. The project’s preliminary schedule is to complete construction of the reactor by 2028. Commercial operation will begin in 2029.
         Global Power First is a joint venture between OPG and Ultra Safer Nuclear Corporation. The collaboration is working to construct and operate a different type of SMR called a micro-modular reactor. The work is being carried out at Chalk River Laboratories in Ontario. The site is owned by the Atomic Energy of Canada Limited. It is managed by Canadian Nuclear Laboratories. A preliminary application for a license to prepare the site was submitted in 2019. An environmental assessment for the project is underway.
         The NWMO continues to actively engage with these and other SMR developers to ensure that any potential new types of spent nuclear fuel waste will meet stringent safety criteria for long-term management in a deep geological repository.
         Safety will also be a priority for the transportation of spent nuclear fuel to the repository. Before any spent fuel is transported, the NWMO must meet stringent safety, security and emergency management regulations set by Transport Canada and the Canadian Nuclear Safety Commission, which ensure public safety during normal transport as well as accident conditions.
         Transportation of spent nuclear fuel will not begin until the 2040s when the repository is operational. The NWMO recognizes that transportation is a subject of broad public interest. Planning for the project has already started. Transportation planning over the next twenty years will be a dynamic and collaborative activity. There will be opportunities for everyone interested to provide input, ask questions and raise concerns.
         Dolatshahi said, “In delivering on Canada’s plan, the NWMO holds safety as our highest priority. It reflects the best in internationally-accepted design, while incorporating the flexibility to accommodate waste from future nuclear reactor designs for years to come.”

  • Geiger Readings for Feb 23, 2023

    Geiger Readings for Feb 23, 2023

    Ambient office = 60 nanosieverts per hour

    Ambient outside = 91 nanosieverts per hour

    Soil exposed to rain water = 89 nanosieverts per hour

    Crimini mushroom from Central Market = 107 nanosieverts per hour

    Tap water = 75 nanosieverts per hour

    Filter water = 58 nanosieverts per hour

  • Radioactive Waste 892 – Canada Is Working On A Deep Geological Repository For Its Spent Nuclear Fuel – Part 1 of 2 Parts

    Radioactive Waste 892 – Canada Is Working On A Deep Geological Repository For Its Spent Nuclear Fuel – Part 1 of 2 Parts

    Part 1 of 2 Parts
         Canada has developed plans for achieving net zero carbon emissions. The plan involves a host of strategies ranging from conservation efforts to the deployment of wind and sola energy technology.
          Canada is also exploring how small modular reactors (SMRs) could play a critical role in providing abundant energy as part of a low-carbon future. SMRs are a new class of nuclear reactors that are smaller in size and lower in power output than conventional nuclear power reactors.
         SMR are nuclear reactor that generate up to three hundred megawatts. They will be constructed in a factory and shipped to the operational site in modules for assembly. It is hoped that standardized components and quality control available in a factory setting will make them safer, more efficient and less expensive that the currently commercial nuclear power reactors which each generate a gigawatt of power or more.
         SMRs and other emerging approaches will result in spent nuclear fuel. Regardless of how much spent nuclear fuel is produced, it must be stored in isolation for a very long time.
         Canada has a plan to safely contain, and isolate Canada’s spent nuclear fuel. The plan includes the spent nuclear fuel that has already been generated by the existing fleet of CANDU reactors and all the spent fuel that will be produced in the future. This includes spent nuclear fuel generated from SMRs.
         In 2002, under their Nuclear Fuel Waste Act, the Canadian federal government tasked a non-profit organization, the Nuclear Waste Management Organization (NWMO), to engage with Canadians and Indigenous Peoples to devise a plan to safely contain and isolate Canada’s spent nuclear fuel. The NWMO is supposed to implement that plan to protect people and the environment for generations to come.
         Canada’s plan for safely managing and isolating spent nuclear fuel involves the construction a deep geological repository. The repository will be located more than sixteen hundred feet underground in a stable rock formation. The rock will provide long-term stability against the effects of climate change, earthquakes, glacial cycles and other further geological changes.
         A multiple barrier systems consisting of a series of engineered and natural barriers will safely contain and isolate spent nuclear fuel. International consensus indicates that deep geological repositories represent the safest approach for the long-term management of spent nuclear fuel.  Finland, Sweden, Switzerland, France and others are all working on a similar approach.
         Sara Dolatshahi is the director of strategic projects at the NWMO. She said, “Whether we’re talking about spent nuclear fuel that has been generated over the past half-century, produced by existing nuclear reactors, or new emerging fuel types that will be created in the future, it remains our responsibility and mandate to ensure used nuclear fuel is safely managed over the long term.”
         The site-selection process that will host the repository has been underway since 2010. It began with twenty two municipalities and Indigenous communities that expressed interest in learning more and exploring their potential to host the project.
    Please read Part 2 next

  • Geiger Readings for Feb 22, 2023

    Geiger Readings for Feb 22, 2023

    Ambient office = 59 nanosieverts per hour

    Ambient outside = 96 nanosieverts per hour

    Soil exposed to rain water = 98 nanosieverts per hour

    Blueberry from Central Market = 71 nanosieverts per hour

    Tap water = 86 nanosieverts per hour

    Filter water = 65 nanosieverts per hour

  • Nuclear Fusion 113 – The International Atomic Energy Agency Has Just Released A Report On Progress In Nuclear Fusion Research – Part 2 of 2 Parts

    Nuclear Fusion 113 – The International Atomic Energy Agency Has Just Released A Report On Progress In Nuclear Fusion Research – Part 2 of 2 Parts

    Part 2 of 2 Parts (Please read Part 1 first)
         The new IAEA report dedicates each chapter to a different fusion reactor design class. Details are provided including name, status, ownership, host country and organization. Also included is a short description of the device’s goals and main features. The report also provides statistics about publication, funding and other parameters that help create a comprehensive picture of the status of global fusion research efforts.
         Tokamaks and stellarators are the most common fusion research devices and the focus of much of the current research. These are toroidal devices that contain huge magnets that control the movement of plasma where fusion occurs. The plasmas in these devices are a gas of charged particles at extreme temperatures. The IAEA report shows that there are currently more than fifty tokamaks and over ten stellarators in operation around the world. The largest tokamak in the world is the International Thermonuclear Experimental Reactor (ITER). Thirty-five nations are involved in the project which is being constructed in France.
        Another approach includes inertial fusion which uses high-power lasers (or other means) to heat and compress tiny spherical capsules containing fuel pellets. In December of last year, the National Ignition Facility (NIF) in the U.S. used this approach to make significant progress in fusion research. About three thousand one hundred and fifty kilojoules of energy were generated from the two thousand kilojoules energy input from its one hundred and ninety two lasers.
         Omar Hurricane is the Chief Scientist for the Inertial Confinement Fusion Program Design Physics Division, Lawrence Livermore National Laboratory, U.S. He said, “This year we find ourselves in a position where we can talk about the milestones of burning plasmas, fusion ignition, and target energy gain greater than unity in the past tense – a situation that is remarkable.”
         The report also provides details about alternative designs that scientists continue to research for producing fusion. For example, when two ion beams generated by particle accelerator collide, fusion takes place at the collision point. While hydrogen isotopes are the most popular fuels for fusion research, isotopes of other elements are also being tested. One approach is to fuse a single proton with a boron-11 nucleus.
          To demonstrate that fusion can effectively produce electricity, there are increasing efforts towards design and construction of demonstration fusion power plants or DEMOs. The report also dedicates a chapter to the twelve DEMO concepts at various stages of development in China, Europe, Japan, Russia, the Republic of Korea, the United Kingdom and the United States. Varying target completion dates span the next three decades. Barbarino said, “We’ve made significant progress in understanding fusion and its science, but there is still much work to do before it can become a practical source of electricity.”

              Billions of dollars are being poured into fusion research by public and private entities. The world is now involved in a fusion race and the race is heating up. Great wealth awaits the companies who are able to harness nuclear fusion for commercial energy production and other uses. Achieving practical nuclear fusion will solve many problems related to energy production.

  • Geiger Readings for Feb 21, 2023

    Geiger Readings for Feb 21, 2023

    Ambient office = 86 nanosieverts per hour

    Ambient outside = 122 nanosieverts per hour

    Soil exposed to rain water = 121 nanosieverts per hour

    Avocado from Central Market = 124 nanosieverts per hour

    Tap water = 145 nanosieverts per hour

    Filter water = 132 nanosieverts per hour