• Nuclear CSI: Noninvasive procedure could spot criminal nuclear activity

    Determining whether an individual – a terrorist, a smuggler, a criminal — has handled nuclear materials, such as uranium or plutonium, is a challenge national defense agencies currently face. The standard protocol to detect uranium exposure is through a urine sample; however, urine is able only to identify those who have been recently exposed. Scientists have developed a noninvasive procedures that will better identify individuals exposed to uranium within one year.

  • Nanomaterials help solve the problem of nuclear waste

    In the last decades, nanomaterials have gained broad scientific and technological interest due to their unusual properties compared to micrometer-sized materials. Nuclear fuels production, structural materials, separation techniques, and waste management may all benefit from more knowledge in the nano-nuclear technology.

  • Suspension of U.S.-Russia plutonium disposal agreement a setback: Expert

    Earlier this week the lower house of the Russian parliament approved President Vladimir Putin’s decree on suspending the U.S.-Russian Plutonium Management and Disposition Agreement (PMDA), which requires each nation to dispose of thirty-four metric tons of plutonium from its dismantled nuclear weapons and military stockpiles. Russia has claimed that the United States is violating the agreement by changing its disposition method from irradiating the plutonium as mixed-oxide (MOX) fuel for commercial nuclear reactors to a process called dilute and dispose, but a nuclear expert says that the United States has not violated the terms of the PMDA by proposing that it change its plutonium disposition approach.

  • Developing tests for radiation absorbed in nuclear emergency

    In a large-scale nuclear or radiological emergency, such as a nuclear detonation, hundreds of thousands of people may need medical care for injuries or illness caused by high doses of radiation. To help save as many people as possible and better prepare the nation for the health impacts of such catastrophic emergencies, HHS will sponsor late-stage development of two tests, known as biodosimetry tests, which can determine how much radiation a person’s body has absorbed.

  • HHS bolsters U.S. health preparedness for radiological threats

    The U.S. Department of Health and Human Services’ (HHS) Office of the Assistant Secretary for Preparedness and Response (ASPR) says that as a part of its mission to help protect Americans’ health following even the most unthinkable of disasters, it is purchasing two medical products to treat injuries to bone marrow in victims of radiological or nuclear incidents. Bone marrow is essential to producing blood.

  • Bacteria can help make underground nuclear waste repositories safer

    It takes about two hundred thousand years for the radioactivity of spent nuclear fuel to revert to the levels of naturally occurring uranium. As a result, most research into the long-term safety of nuclear waste disposal focuses on processes that tick to a slow geological clock: the mechanics of the rock layers that make up the storage site or the robustness of the protective barriers in place that are engineered to contain the radiation. However, all these studies neglect one key factor: biology. Naturally occurring bacteria could consume pent-up hydrogen gas in nuclear waste repositories to prevent radioactive leaks.

  • Terrorism fallout shelters: Is it time to resurrect nuclear civil defense?

    Fifty-five years ago, on 6 October 1961, President John F. Kennedy advised Americans to build an underground protective room, commonly known as a “fallout shelter,” in their homes. The American people heeded his advice and began an enormous grassroots effort to construct fallout shelters in every private residence and public building. Today, smaller nations and terrorist groups, such as al-Qaeda, are seeking nuclear weapons. Some nations, like North Korea, already have them. Others may be a decade away. It is not unreasonable to believe that the use of a single nuclear weapon by a rogue nation or a terrorist group now poses a more likely scenario for a nuclear confrontation than a nuclear war between Russia and the United States. We need a strategy to protect ourselves against these adversaries, and right now we don’t have one, except screening cargo. If we don’t find a more effective strategy to thwart nuclear terrorism soon, we may be forced to go back to fallout shelters as our only protective option, whether we like it or not.

  • Russia’s ultimatum to US: Reduce commitment to NATO, lift sanctions – or nuclear deal is off

    The Kremlin, in an unprecedented series of ultimatums on Monday, said Russia would suspend an agreement it had signed with the United States to turn weapons-grade plutonium into nuclear reactor fuel unless the United States rescinds the sanctions imposed on Russia because of its annexation of Crimea – and also cuts its military commitments to NATO. The Kremlin said that both the economic sanctions and the U.S. military commitments to its NATO allies are “unfriendly” acts to ward Russia.

  • Surprise finding could improve future handling of nuclear waste

    A researcher at the University of Manchester has made a surprise finding after observing variations of a chemical bond with a radioactive metal called thorium — and this newly revealed relationship could one day contribute to improving nuclear fuel management.

  • Radioactive wastewater enters Florida major aquifer after huge sinkhole opens up below fertilizer plant

    At least 980 million liters of highly contaminated water — including radioactive substances – has leaked into one of Florida’s largest sources of drinking water. The leak was caused by a huge sinkhole which opened up beneath a fertilizer plant near Tampa. The sinkhole caused highly contaminated waste water to pass into an aquifer which supplies much of the state. The waste water contained phosphogypsum, a by-product of fertilizer production, which contains naturally occurring uranium and radium. the Floridan aquifer aquifer underlies all of Florida and extends into southern Alabama, Georgia, and South Carolina, supplying groundwater to the cities of Tallahassee, Jacksonville, Gainesville, Orlando, Daytona Beach, Tampa, and St Petersburg.

  • Assessing the risk from Africa as Libya loses its chemical weapons

    Libya’s remaining chemical weapons left over from the Gaddafi regime are now being safely disposed of in a German facility. This eliminates the risk of them falling into the wrong hands. But can these same hands acquire weapons of mass destruction from the rest of Africa? The disposal of Libya’s chemical weapons has lowered the risk of weapons of mass destruction in Africa. But we have seen how far non-state actors are willing to go to either produce or steal such weapons. For example, analysts envision militants known as “suicide infectors” visiting an area with an infectious disease outbreak like Ebola purposely to infect themselves and then using air travel to carry out the attack. Reports from 2009 show forty al-Qaeda linked militants being killed by the plague at a training camp in Algeria. There were claims that they were developing the disease as a weapon. The threat WMD pose cannot be ignored. African countries, with help from bilateral partners and the international community, have broadened their nonproliferation focus. They will need to keep doing so if the goal is effectively to counter this threat.

  • Risk of another Chernobyl- or Fukushima-type accident worryingly plausible

    The biggest-ever statistical analysis of historical nuclear accidents suggests that nuclear power is an underappreciated extreme risk and that major changes will be needed to prevent future disasters. The researchers’worrying conclusion is that, while nuclear accidents have substantially decreased in frequency, this has been accomplished by the suppression of moderate-to-large events. They estimate that Fukushima- and Chernobyl-scale disasters are still more likely than not once or twice per century, and that accidents on the scale of the 1979 meltdown at Three Mile Island (a damage cost of about $10 billion) are more likely than not to occur every 10-20 years.

  • DHS takes delivery of RadSeeker which identifies threat materials in shielded, masked, or concealed situations

    The first regular shipments of the Smiths Detection RadSeeker featuring Symetrica’s Discovery Technology Sub-System will begin this fall as the first part of a contract with the Department of Homeland Security (DHS). Symetrica’s Discovery Technology at the heart of RadSeeker identifies threat materials in shielded, masked, or concealed situations.

  • N. Korea’s test of miniaturized warhead, submarine-launched ballistic missile, are game changers

    North Korea has conducted its fifth nuclear test last night, marking the 68th anniversary of the nation’s founding. Military analysts say the test shows a worrisome improvement in North Korea’s nuclear capabilities: It was the most powerful nuclear test to date, with a 10-kiloton yield – slightly smaller than the yield of the bomb dropped on Hiroshima, estimated to have been between twelve and eighteen kilotons. The warhead tested in the explosion was miniaturized, indicating that North Korea now has the capability to mount a nuclear warhead on a missile. Last night’s test, together with North Korea’s proven progress in launching ballistic missile from submarines, mean that the country is getting closer to possessing a nuclear arsenal capable of hitting the United States.

  • U.S. violating nonproliferation agreement: Nuclear experts

    More than two dozen nuclear experts, including former U.S. officials under the six preceding presidents of both parties, accused the Obama administration of violating a 2012 nonproliferation agreement to end exports to Europe of bomb-grade, highly enriched uranium (HEU) for production of medical isotopes. The administration proposes to export sixteen pounds of nuclear weapons-grade uranium metal to France to produce medical isotopes in Belgium and the Netherlands.