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 Mar 31, 2023

    Geiger Readings for Mar 31, 2023

    Ambient office = 85 nanosieverts per hour

    Ambient outside = 113 nanosieverts per hour

    Soil exposed to rain water = 118 nanosieverts per hour

    Blueberry from Central Market = 115 nanosieverts per hour

    Tap water = 111 nanosieverts per hour

    Filter water = 85 nanosieverts per hour

  • Nuclear Reactors 1199 – EDF Is Spinning Off SMR development To A New Subsidiary called Nuward

    Nuclear Reactors 1199 – EDF Is Spinning Off SMR development To A New Subsidiary called Nuward

         EDF is the French utility which builds, operates and sell nuclear fission power reactors. They just announced that they will create a wholly-owned subsidiary which will market their Nuward small modular reactor (SMR). The purpose of this action is to allow the Nuward reactor to meet its “next key milestones” on the way to first pouring of concrete for an power plant in 2030.
         Following the conceptual design phase, EDF said that “Nuward will now proceed with the basic design activities to progress design maturity, leveraging the expertise and experience of EDF Group’s nuclear engineering teams, while also benefiting from the support of an international network of industrial partners”.
         A Design and Safety options file must be submitted to the French Nuclear Safety Authority in July. Discussion and engagement will also take place to assess and select possible sites for the first plant in France.
         The Nuward SMR project was launched in September of 2019 by the French Alternative Energies and Atomic Energy Commission (CEA), EDF, Naval Group and TechnicAtome. The first Nuward project consists of a three hundred and forty megawatt SMR plant with two pressurized water reactors (PWR) of one hundred and seventy megawatts each. It has been jointly developed using France’s long-term experience with PWRs. The new SMR technology is expected to replace old high CO2-emitting coal, oil and gas power plants around the world. Other applications such as hydrogen production, urban and district heating or desalinization will also be supported.
         Nuward company will continue to work with its long-time partners as well as new partners following its establishment. Its workforce is expected to expand to about one hundred and fifty workers in its core team by 2024. More than six hundred workers in total including partners’ staff will be contributing to the project.
          Renaud Crassous is Nuward’s President. He said the aim was to “fully integrate the SMR catalysts for success, i.e. innovation, modularization, standardization and series production. We are committed to increasing the speed of execution to deliver the Nuward SMR design on time to meet market expectations for first nuclear concrete as early as 2030.”
         Xavier Ursat is the EDF Group Senior Executive in charge of Engineering and New Nuclear Projects Division. He said that as a subsidiary embedded within the EDF Group, Nuward will be “a key enabler for a time-to-market product, providing the agility and speed required to meet the next key milestones”.
         The Nuward is one of a variety of SMRs in development at the moment in different countries and the company hopes to eventually become the European leader in SMR technology. It has already attracted interest elsewhere in Europe. A regulatory agreement was reached last year. This means that the French nuclear safety regulator and Czech and Finnish regulators are collaborating for a pilot European early joining regulatory review.
         According to EDF’s SMR roadmap, the phase involving the detailed design and formal application for a new nuclear facility is scheduled to begin in 2026. This will be followed by pouring the first concrete in France in 2030 with the construction of that first unit anticipate to take about three years.

  • Geiger Readings for Mar 30, 2023

    Geiger Readings for Mar 30, 2023

    Ambient office = 63 nanosieverts per hour

    Ambient outside = 139 nanosieverts per hour

    Soil exposed to rain water = 119 nanosieverts per hour

    Tomato from Central Market = 94 nanosieverts per hour

    Tap water = 88 nanosieverts per hour

    Filter water = 77 nanosieverts per hour

  • Nuclear Reactors 1198 – Majors Producers Of Medical Isotope Molybdenum-99 Have Converted From The Use Of HEU Targets To LEU Irradiation Targets

    Nuclear Reactors 1198 – Majors Producers Of Medical Isotope Molybdenum-99 Have Converted From The Use Of HEU Targets To LEU Irradiation Targets

         All of the facilities in the world that produce molybdenum-99 (Mo-99) are now using low-enriched uranium (LEU) targets instead of proliferation-sensitive highly-enriched uranium (HEU) targets. Belgium’s National Institute of Radioelements (IRE) medical isotope production facility was the last facility to convert to LEU.
         Mo-99 is the most widely used radioisotope in nuclear medicine for diagnosis. Historically, it was usually produced by irradiating HEU in nuclear reactors and then processing the irradiated materials to extract the Mo-99. This is seen as a serious nuclear proliferation risk.
         A commitment was made at the 2012 National Security Summit for the U.S. Department of Energy’s National Nuclear Security Administration (NNSA) to provide financial and technical assistance to global producers of Mo-99 for the conversion from HEU to LEU targets. Such conversions were technically complex. They required qualification of new LEU  target for irradiation in nuclear reactors, modifications of specialized equipment for processing irradiated target, and extensive reviews from both nuclear safety and medical regulators.
         South Africa’s NTP Radioisotopes converted to LEU targets in 2017 and the Netherlands’ Curium converted in 2018 with the assistance of the NNSA.  Australian Nuclear Science and Technology Organization is the fourth largest Mo-99 producer in the world. It has always used LEU targets.
         The IRE is the world’s leading producer of Mo-99. Preliminary consultations between the IRE and the Belgian nuclear regulator, the Federal Agency for Nuclear Control (FANC), on the conversion from HEU to LEU targets began in 2015. The IRE requested in July of 2016 to change its licensing conditions to enable the switch. On the 24th of October 2017, the permit for the development of production with LEU targets was granted by Royal Decree. FANC and its technical subsidiary Bel V approved the beginning of Mo-99 production with LEU targets on the 14th of April 2020. The first batch of Mo-99 utilizing with LEU targets was produced in May of 2020.
        In February of 2021, IRE announced that its first commercial deliveries of iodine-131 (I-131) based on the irradiation of LEU targets had begun. I-131 is used for therapeutic purposes. IRE recently announced that it had completed conversion of its production process to LEU targets. This ended the global civilian use of HEU targets for the production of medical isotopes.
         IRE said, “This complete conversion to a LEU process represents the culmination of years of work and collaboration between the R&D, production, safety, quality assurance and regulatory teams of IRE around an entirely new industrial process for supplying Mo-99 and I-131 to healthcare professionals, without impacting the site’s production capacity. This outcome would not have been possible either, without the upstream collaboration of the research reactors which irradiate the uranium targets, but also downstream thanks to IRE customers who had to modify the application files of their Mo-99 and I-131-based drugs and have them approved.”
         Erich Kollegger is the CEO of IRE. He said, “IRE will continue to innovate in order to contribute even better to saving lives thanks to nuclear medicine applications, while increasing the safety of our processes and our facilities.”
         Jill Hruby is an NNSA Administrator. She said, “For decades, access to life-saving medical isotopes depended on the shipment of proliferation-sensitive nuclear material across continents. With IRE’s production facility converted to LEU, all major producers across the Mo-99 industry can perform their vital work without HEU targets.”
         NNSA is also assisting research reactor operators to convert from HEU to LEU fuel. Some of these reactors provide irradiation services for Mo-99 production. There are six research reactors in the world with a major role in Mo-99 production. Five of them now use LEU fuel. Belgium’s BR2 research reactor is the sixth and it is expected to convert to LEU fuel in 2026. LEU test assemblies are currently being irradiated in the BR2 reactor. This is the final major technical step towards conversion.

  • Geiger Readings for Mar 29, 2023

    Geiger Readings for Mar 29, 2023

    Ambient office = 140 nanosieverts per hour

    Ambient outside = 145 nanosieverts per hour

    Soil exposed to rain water = 143 nanosieverts per hour

    Red bell pepper from Central Market = 103 nanosieverts per hour

    Tap water = 106 nanosieverts per hour

    Filter water = 84 nanosieverts per hour

  • Nuclear Reactors 1197 – Rolls-Royce SMR Has Signed Memorandums of Understanding With Finland, Sweden and Ukraine

    Nuclear Reactors 1197 – Rolls-Royce SMR Has Signed Memorandums of Understanding With Finland, Sweden and Ukraine

         Rolls-Royce SMR has signed memorandums of understanding (MoUs) to consider the deployment of its small modular reactor (SMR) in Finland and Sweden. It will also help post-war recovery in Ukraine.
         Under an MoU signed with Ukraine’s state-owned nuclear energy utility Energoatom, the companies will collaborate to explore future opportunities to deploy Rolls-Royce SMR reactors in Ukraine as it begins to rebuild. Rolls-Royce SMR has committed to supporting Ukraine’s recovery by deploying an SMR power plant “capable of generating enough carbon-free electricity to power one million homes for over 60 years”.
         The MoU was signed on the 20th of March by Energoatom President Petro Kotin and Sophie Macfarlane-Smith who is the head of customer engagement at Rolls-Royce SMR.
          Kotin said, “Cooperation between Energoatom and Rolls-Royce SMR has reached a new. Today we signed an agreement that will allow Ukraine not only to start a high-quality post-war reconstruction of the energy infrastructure, but also to become one of the first countries in the world to attract promising technologies of small modular reactors for this purpose.”
         Tom Samson is the CEO of Rolls-Royce SMR. He added that “Thanks to our own British nuclear technologies, we can potentially help the people of Ukraine to quickly rebuild and restore energy security and independence.”
         In May of 2022, Kotin stated that construction work on two new Westinghouse units at the Khmelnitsky nuclear power plant “will begin as soon as the war is over”. He went on to say that an agreement signed with Westinghouse covered the construction of five units. The other three units will be distributed at Ukraine’s other existing nuclear power plants.
         Rolls-Royce SMR has signed an MoU with Finish utility Fortum to jointly explore the opportunities for the deployment of SMRs in Finland and Sweden. Fortum operations include the Loviisa nuclear power plant in Finland. Fortum announced in October of 2022 a project to explore the prerequisites for new nuclear power plants in Finland and Sweden. The project includes potential partner networks and cooperation agreements. Fortum said that it considers SMRs to be part of nuclear power’s future. It is “interested in the possibilities of nuclear in heat and hydrogen production”.
         Laurent Leveugle is Fortum’s Head of New Build Feasibility Study. He said, “Fortum is happy to start a collaboration with Rolls-Royce SMR which is one of the forerunners in the small modular reactor industry. We are especially interested in learning more about Rolls-Royce SMR’s delivery model considering Rolls-Royce’s historical industrial experience.”
         Alan Woods is the Director of Strategy and Business Development for Rolls-Royce SMR. He said, “Rolls-Royce SMR is honored to be collaborating with Fortum, as one of the most respected nuclear operators in the Nordics, and we see great benefit in the co-operation between our two organizations. The importance of energy security has increased dramatically and we see our unique approach to nuclear new build – focusing on delivery capability and cost effectiveness – as the best solution to providing low-carbon energy for generations to come. We look forward to working with Fortum during their feasibility study.” The two companies noted that “any potential investment decision will be made at a later stage”.
         In addition to Rolls-Royce SMR, Fortum has signed cooperation agreements with EDF of France, Kärnfull Next of Sweden and Helen of Finland.