• Nuclear proliferationLaser uranium enrichment technology may create new nuclear proliferation risks

    A new laser-based uranium enrichment technology is based on a new uranium separation concept, which relies on the selective laser excitation and condensation repression of uranium-235 in a gas. Experts worry that this new enrichment technology may provide a hard-to-detect pathway to nuclear weapons production.

  • Nuclear detectionScanners more rapidly and accurately identify radioactive materials at U.S. borders, events

    By Rob Matheson

    Among the responses to the 9/11 terrorist attacks, DHS, among other things, has increased screening of cargo coming into the country. At MIT, the terrorist attacks gave rise to a company dedicated to helping DHS — and, ultimately, other governments and organizations worldwide — better detect nuclear and other threats at borders and seaports. Today, Passport — co-founded in 2002 by MIT physics professor emeritus William Bertozzi — has two commercial scanners: the cargo scanner, a facility used at borders and seaports; and a wireless radiation-monitoring system used at, for example, public events.

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  • Nuclear powerU.S. court asked to block restart of aging, damaged Indian Point nuclear reactor

    Friends of the Earth and other environmental organizations have filed an emergency petition with the United States Court of Appeals for the District of Columbia Circuit asking that the court compel the Nuclear Regulatory Commission to prevent Entergy from restarting an aging Indian Point nuclear reactor which was found to have unprecedented parts failure in its critical core cooling system. Entergy, the owner and operator of Indian Point, has repeatedly stated that it intends to start the reactor within days. The Indian Point reactors’ licenses expired in 2013 and 2015, respectively, and the plant is operating beyond its 40-year life span while the NRC considers whether to extend the license for an additional twenty years.

  • Nuclear powerNew material promise to make nuclear fuel recycling cheaper, cleaner

    Researchers are investigating a new material that might help in nuclear fuel recycling and waste reduction by capturing certain gases released during reprocessing. Conventional technologies to remove these radioactive gases operate at extremely low, energy-intensive temperatures. By working at ambient temperature, the new material has the potential to save energy, make reprocessing cleaner and less expensive. The reclaimed materials can also be reused commercially.

  • Nuclear accidentsNumber of thyroid cancers in Belgian children rises post-Chernobyl

    Thyroid cancer is usually rare among children, with less than one new case per million diagnosed each year. Exposure in Belgium to radioactive fallout from the April 1986 Chernobyl nuclear accident may have increased the incidence of thyroid cancer in those exposed as children.

  • Nuclear accidentsFukushima’s lesson: Better real-time monitoring of spent fuel pools is a must

    The 2011 Fukushima Daiichi nuclear accident should serve as a wake-up call to nuclear plant operators and regulators on the critical importance of measuring, maintaining, and restoring cooling in spent fuel pools during severe accidents and terrorist attacks, says a new report from the National Academies of Sciences, Engineering, and Medicine.

  • Nuclear accidentsDecommissioning Fukushima: Mapping boron distribution in molten debris

    Decommissioning the Fukushima Daiichi Nuclear Plant just got one step closer. Japanese researchers have mapped the distribution of boron compounds in a model control rod, paving the way for determining re-criticality risk within the reactor.

  • Electromagnetic radiation Measuring electromagnetic radiation exposure

    Society demands continuous implementation of new transmission systems due to ongoing development of communication technologies. These systems work by emitting electromagnetic waves. As a result, population is exposed to a significant increase of environmental radiation levels. Researchers from UPM have developed a portable device that allows continuous monitoring the exposure levels to electromagnetic radiations of a person who wears such device.

  • ChernobylWhat we learned from Chernobyl about how radiation affects our bodies

    By Ausrele Kesminiene

    The world has never seen a nuclear accident as severe as the one that unfolded when a reactor exploded in Chernobyl on 26 April 1986, sending vast amounts of radiation into the skies around Ukraine, Belarus and Russia. The planet had experienced massive releases like this before, in the bombings of Hiroshima and Nagasaki in 1945. But Chernobyl-related radiation exposure had a more protracted character. It was the first time in history that such a large population, particularly at a very young age, was exposed to radioactive isotopes, namely iodine-131 and cesium-137, not just through direct exposure, but through eating contaminated food as well.

  • ChernobylMore money for nuclear safety pledged on Chernobyl 30th anniversary

    The EU and other global donors have pledged an additional $99 million to help secure the Chernobyl power plant, as ceremonies in the Ukraine mark thirty years since the disaster. The money will be used to construct a new spent nuclear waste storage facility, adding to the €2 billion already donated to helping clean up and secure the Chernobyl site. A new giant $1.7 billion steel structure will be placed over the nuclear reactor this year to prevent further radioactive leaks. The old concrete structure was put together after the meltdown, but experts say it is not leak-proof and that, in any event, it is beginning to show its age.

  • ChernobylThe legacy of Chernobyl -- 30 years on

    By Awadhesh Jha

    The 26 April 2016 marks the 30th anniversary of the Chernobyl nuclear accident. For many, especially those born since 1986, it is a word they know without appreciating the full significance of what happened on that day. For others, it was a life changing catastrophe which resulted in largest release of radioactivity in the history of nuclear energy.

  • Nuclear wasteDealing with irradiated nuclear graphite

    Since the beginning of the nuclear power industry, a large number of channel uranium-graphite nuclear power reactors was built across the world. To date, they all are on the output stage of the operation or decommissioning preparation. Approximately 250,000 tons of irradiated graphite are accumulated in the world, including ~ 60,000 tons in Russia. Due to the specificity of irradiated graphite, the treatment of this type of radioactive waste has not been determined yet.

  • Nuclear accidentsForget Fukushima: Chernobyl still holds record as worst nuclear accident for public health

    By Timothy J. Jorgensen

    The 1986 Chernobyl and 2011 Fukushima nuclear power plant accidents both share the notorious distinction of attaining the highest accident rating on the International Atomic Energy Agency (IAEA) scale of nuclear accidents. No other reactor incident has ever received this Level 7 “major accident” designation in the history of nuclear power. But the IAEA scale isn’t designed to measure public health impact. Chernobyl is by far the worst nuclear power plant accident of all time. It was a totally human-made event which was made worse by incompetent workers who did all the wrong things when attempting to avert a meltdown. Fukushima in contrast, was an unfortunate natural disaster – caused by a tsunami that flooded reactor basements — and the workers acted responsibly to mitigate the damage despite loss of electrical power. In terms of health ramifications, these two nuclear accidents were not even in the same league. While Fukushima involved radioactivity exposures to hundreds of thousands of people, Chernobyl exposed hundreds of millions. And millions of those received substantially more exposure than the people of Fukushima.

  • Radiation risksBelgium turns down Germany’s request to shutter two aging Belgian nuclear plants

    Belgium on Wednesday turned down a request by Germany to shut down two ageing nuclear power near the German-Belgium border. Belgium said the two plants, while old, still meet the strictest safety standards. Both the Doel and Tihange power stations, in operation since 1974, were scheduled to be shut down and decommissioned in 2015.

  • Nuclear terrorismParis attacks' mastermind had files on German nuclear waste facility

    Salah Abdeslam, the mastermind of the November 2015 terrorist attacks who is now in custody in Belgium, had in his possession documents about a nuclear research center in Germany. The Juelich nuclear center near the Belgium-Germany border is used for the storage of nuclear waste.