Cameco’s Cigar Lake project has a uranium mining license from the Canadian Nuclear Safety Commission (CNSC) that clears the way for the start of production at the northern Saskatchewan site. World-nuclear-news.org
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.
Geiger Counter Readings in Seattle, WA on June 16, 2013
Ambient office = .075 microsieverts per hour
Ambient outside = .079 microsieverts per hour
Soil exposed to rain water = .087 microsieverts per hour
Mango from Costco = .103 microsieverts per hour
Tap water = .104 microsieverts per hour
Filtered water = .071 microsieverts per hour
Geiger Counter Readings in Seattle, WA on June 15, 2013
Ambient office = .072 microsieverts per hour
Ambient outside = .093 microsieverts per hour
Soil exposed to rain water = .103 microsieverts per hour
Iceberg lettuce from Costco = .137 microsieverts per hour
Tap water = .093 microsieverts per hour
Filtered water = .079 microsieverts per hour
The Nuclear Regulatory Commission has mandated new vent filters for the thirty five Mark I and Mark II reactors in the United States because of what happened at Fukushima involving the Mark reactors there. Other rule changes have been suggested to the safety protocols for nuclear reactors in the U.S. Other nations and groups of nations have also been updating their rules for nuclear safety in the wake of the Fukushima disaster.
In the European Union, the central agency for nuclear power regulation, the European Commission for Energy has proposed new tougher rules for the one hundred and thirty five nuclear reactors in the EU with an emphasis on increasing the safety of nuclear power generation. A battery of stress tests was run on all the reactors in the twenty seven nations of the European Union following the Fukushima disaster. The report the resulted from those tests found that almost all of the reactors in the EU needed to have improvements in their safety measures. There was also a call for standardizations so that there would be greater consistency across all the reactors in all the countries in the Union.
E.U. reactors already have regular tests but under the new rules there would more frequent and stringent tests. The new rules call for a safety review across the EU every six years. Inspectors from the Commission would be sent into any member state that was not doing enough to insure the safety of their reactors. There was also a call for peer review which in this context would mean that countries in the Union could send their own inspectors into neighboring member countries to review their neighbors’ adherence to safety rules and procedures. One additional provision of the new rules would be to have an emergency response center on each reactor site that would be protected against radioactivity, earthquake and flooding.
The rules would not go into effect unless and until approved by each of the member states in the E.U. As might be expected, some critics are saying that the new rules don’t go far enough while other critics are saying that they do not go far enough. It is not surprising that France which gets eighty percent of its electricity has been resisting some of the new rules, claiming that the rules that it has in place are good enough. Greenpeace, on the other hand, criticizes the new rules because there is no increased protection against the threat of terrorism. They are also concerned about regulatory capture and the lack of any increase in the power and authority of the regulators. The Commission views the new rules as “realistic.” The estimated cost spread of the coming years of all the proposed changes is in the neighborhood of thirty two billion U.S. dollars. Some of the countries in the E.U. such as Germany are turning their back on nuclear power entirely while some Eastern European countries have old Soviet era reactors that will have to be shut down because they cannot even be brought up to the current standards for reactors in the E.U.
Nuclear European Union:
The shareholders of Finland’s Teollisuuden Voima Oyj have agreed to $400 million of loan commitments to enable the company to realize the completion of the Olkiluoto 3 EPR project. world-nuclear-news.org
Geiger Counter Readings in Seattle, WA on June 14, 2013
Ambient office = .106 microsieverts per hour
Ambient outside = .093 microsieverts per hour
Soil exposed to rain water = .078 microsieverts per hour
Iceberg lettuce from Costco = .125 microsieverts per hour
Tap water = .074 microsieverts per hour
Filtered water = .061 microsieverts per hour
I have been a science fiction fan since I was a teenager. I have always assumed that someday, the human race would explore the solar system. We have already walked on the moon and sent robot probes to the inner and outer planets. The planet Mars has held a fascination for the human race and, with the coming of the Twentieth Century, stories were written about the human exploration of Mars. As I write this blog post, we have a roving vehicle on Mars taking pictures and analyzing soil samples. There have been projects where volunteers lived for months inside an isolated environment to simulate a months’ long trip to Mars. In the past year, a group called for volunteers who are willing to take a one way trip to that planet and they got thousands of responses.
Unfortunately for those who dream of the human exploration of Mars, recent scientific findings suggest that the radiation in space would pose a major hazard to any human explorers who spend months of space travel to reach Mars. During its trip to Mars, the Curiosity Rover spacecraft measured the radiation it encountered and found that human travelers would be exposed to over three times the radiation from cosmic rays and energetic particles from the sun that astronauts now encounter in the International Space Station. With current technology, the minimum transit time for a one way trip to Mars would be about six months. There is a tradeoff between shielding materials that could protect against radiation and the fuel required to lift the shielding off the earth and propel it through space. It appears that current spacecraft designs would expose astronauts to sufficient radiation on a trip to Mars to significantly impact their health.
Fortunately for Mars exploration enthusiasts, NASA has been talking about the prospects for a rocket powered by nuclear fusion. Nuclear fusion has not yet reached the point where a fusion reactor will consistently produce more energy than it consumers. On the other hand, creating a nuclear fusion rocket engine should be much simpler than creating a fusion reactor for power generation. The rocket engine would just use the fusion reaction to produce a burst of energy for propulsion instead of having to sustain a fusion reaction for power generation. NASA is currently funding research into prototype fusion engines. One of these projects at the University of Washington calculates that a fusion engine could take a rocket to Mars in thirty days. This would reduce the radiation to a manageable level and also reduce the need for food and water for the passengers. Not only would such an engine bring Mars within reach but would also open up the whole solar system to human exploration and exploitation. For instance, a fusion powered ship would be able to reach Saturn in a couple of months.
One additional benefit of developing a fusion rocket engine might be to advance the general field of fusion research and bring us closer to a working fusion reactor for power generation. Nuclear fusion would be a way to help mitigate climate change without all the dangers and waste production of nuclear fission reactors.
Mars:
Two years after the disaster at the Fukushima Daiichi nuclear plant, people are still worried about contaminated food, and farmers are struggling. radiationnews.blogspot.com
A planned acquisition of Strathmore Minerals by Energy Fuels would create the “premier pure-play US uranium company”, according to an announcement by the two companies. world-nuclear-news.org
Movie review by the Union of Concerned Scientists put “Pandora’s Promise” back in the box. nuclear-news.net
Geiger Counter Readings in Seattle, WA on June 13, 2013
Ambient office = .128 microsieverts per hour
Ambient outside = .098 microsieverts per hour
Soil exposed to rain water = .079 microsieverts per hour
Iceberg lettuce from Costco = .116 microsieverts per hour
Tap water = .124 microsieverts per hour
Filtered water = .107 microsieverts per hour