• Cost of plutonium disposal facility skyrockets

    The Mixed Oxide (MOX) nuclear fuel factory at the Savannah River Site in South Carolina, being built to help dispose of cold war-era weapon-grade plutonium, would cost up to $30 billion in addition to the $4 billion spent on construction so far. The staggering cost overruns have led many to call for a new, less expensive solution. Matthew Bunn, a former Clinton White House official who helped develop the plutonium disposal program, agrees that the cost of the MOX factory is excessive. “The things we’re trying to accomplish aren’t worth that amount of money,” he said.

  • IAEA: Iran's stockpile of 20% enriched uranium shrunk under interim nuclear agreement

    The International Atomic Energy Agency (IAEA) reports in its quarterly inspections assessment that the quantity of 20 percent enriched uranium in Iran’s hands has been reduced since last November, when the world’s six powers (P5+1) and Iran have reached an interim agreement on Iran’s nuclear activities. Iran now has 354 pounds of the material — or about one-fifth less than what it had in November. With the right type of centrifuges, it is quicker to enrich uranium from 20 percent to weapon-grade 90 percent than it is to enrich uranium from 1 or 2 percent to 20 percent, so that the smaller the amount of 20 percent uranium a country has, the longer the “breakout” time — the time it would take a country to assemble a nuclear bomb once a decision to do so has been made.

  • Operations at a New Mexico nuclear waste repository suspended because of leaks

    Operations at the Waste Isolation Pilot Plant, or WIPP, a New Mexico burial site for military nuclear waste, were suspended for the fourth day, the Department of Energy said, after sensors picked up radiation leaks inside salt tunnels where the radioactive material is entombed.Officials said no radiation escaped to the surface.This is the second time this month the facility had to suspend operations. Earlier this month operations were halted after a truck caught fire in an underground tunnel.

  • Security of dirty bomb materials in U.S. inadequate: experts

    There are more than 5,000 medical and research devices in the United States containing high-activity radiation sources, including 700 with category-1 sources. Category-1 radiation material could be used by terrorists in dirty bombs. The security measures developed by the industry were written with accident prevention in mind, not in order to thwart a deliberate, forcible effort by terrorists or criminals to gain control of the toxic material. In addition, radioactive materials were considered to be “self-protecting,” because it was assumed that the powerful radiation would deter anyone thinking of tampering with these devices. Terrorist bomb-makers, however, showed themselves to be more technologically-savvy than earlier thought, and, in any event, suicide bombers would not be deterred by the risk of radiation poisoning.

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  • U.S. Navy probes exam cheating at school for nuclear power reactor operator

    Yet another military service is facing allegations of exam-cheating. Earlier this year, the U.S. Air Force launched a probe into a cheating scandal involving about 100 officersat Malmstrom Air Force Base, Montana, who are responsible for maintaining and operating land-based nuclear missiles. Now the U.S. Navy is investigating about one-fifth of its trainers at the school for naval nuclear power reactor operators in Charleston, South Carolina. The sailors are accused of cheating on written tests required to obtain certification as instructors at the nuclear propulsion school.

  • Nuclear physicists prove a Peggy Guggenheim Collection painting is a fake

    For more than forty years now, art experts and researchers have been trying to determine whether a painting in the Peggy Guggenheim Collection in Venice was a genuine painting which the French artist Fernand Leger produced between 1913 and 1914 as part of his “Contraste de Formes” series. Scientists from the Instituto Nazionale di Fisica Nucleare (INFN) in Florence have used, for the first time in the art world, a brand new carbon 14 dating method — the so-called “bomb peak” curve, which measures the presence of C-14 in the atmosphere — to establish that the canvas used in the painting was produced in 1959, and thus could not have been used by Leger, who died in 1955.

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  • Chemical, physical traits of post-nuclear detonation fallout identified

    Post-detonation nuclear forensics relies on advanced analytical techniques and an understanding of the physio-chemical processes associated with a nuclear detonation to identify the device type and the source of the nuclear material in the device. Researchers have begun to develop a technique that provides a practical approach for looking into the complex physical and chemical processes that occur during fallout formation following a nuclear detonation.

  • USAF nuclear-missile officers alleged to have regularly cheated on readiness tests

    Three former U.S. Air Force officers have alleged that USAF officers responsible for operating nuclear-armed missiles at Malmstrom Air Base in Montana have, for many years, been cheating on monthly readiness tests, and were never punished for it. The former officers claim that cheating is the norm and that officers who did otherwise are the exception.The officers who made the allegations added, though, that misconduct on tests did not impair the safety of the nuclear weapons or the Air Force’s ability to launch missiles if ordered.

  • The basis for a permanent deal: deep, verifiable changes to Iran’s nuclear program

    A new study says that only broad and verifiable changes to Iran’s current nuclear program could serve as a basis for a permanent nuclear deal between Iran and the international community. Among the changes: reducing the number of Iran’s uranium-enrichment centrifuges from the current 19,500 to no more than 4,000, and limiting Iran to one enrichment site; converting the heavy-water reactor being built in Araq to a light-water reactor fueled by low-enriched uranium; and imposing a tight, intrusive inspection regime for at least twenty years.

  • Surviving a nuclear explosion in your city

    During the cold war, scientists modeled every imaginable consequence of a nuclear explosion. Michael Dillon, a Lawrence Livermore Lab mathematician, found a gap in the sheltering strategies for people far enough from ground zero to survive the initial blast but close enough to face deadly radioactive fallout. Dillon’s model’s addresses the most vulnerable people, those who found shelter from the blast in lightweight buildings, or buildings lacking a basement (these buildings are more easily penetrated by deadly radioactive dust). His recommendations:  if adequate shelter is fifteen minutes away, people should remain in their initial, poor-quality shelter no longer than thirty minutes after detonation. If the better shelter is only five minutes away, however, individuals should move there immediately, leaving the closer but unsafe buildings altogether.

  • Iconic Doomsday Clock remains at five minutes to midnight

    Bulletin of the Atomic Scientists: It is still five minutes to midnight — and much too close to doomsday. The minute hand of the Bulletin’s iconic Doomsday Clock has been at five minutes to midnight since January 2012. In explaining why the hand would remain so close to figurative doomsday, the Bulletin’s science and security experts focused on the failure of world leaders to take action which would reduce the possibility of catastrophe related to nuclear weapons and climate change.

  • Interim nuclear agreement with Iran goes into effect 20 January

    The United States and the EU announced Sunday that on 20 January Iran will start implementing November’s “comprehensive agreement.” One of the main clauses in the agreement calls for Iran to begin eliminating its stockpile of highly enriched uranium – that is, uranium enriched to 20 percent or higher — in eight days’ time from the start date. In addition to eliminating its stockpile of 20 percent enriched uranium before the end of January, Iran will also freeze other aspects of its nuclear program, accept more rigorous inspections of its nuclear facilities, and disable the cascade that produces 20 percent-enriched uranium. In exchange, Iran would receive some the relief from the sanctions, providing a $7 billion boost to the Iranian economy. The bulk of relief is in the shape of $4.2 billion in restricted Iranian assets which will be repatriated to Tehran in regular instalments throughout the six months until the deal concludes in July.

  • U.S. nuclear weapon programs to cost $355 billion over a decade: CBO

    In its most recent review of U.S. nuclear policy, the Obama administration decided to maintain all three types of systems that can deliver nuclear weapons over long ranges — submarines that launch ballistic missiles (SSBNs), land-based intercontinental ballistic missiles (ICBMs), and long-range bombers — known collectively as the strategic nuclear triad. The administration also decided to preserve the ability to deploy U.S. tactical nuclear weapons carried by fighter aircraft overseas in support of allies. Nearly all of these delivery systems and the nuclear weapons they carry are nearing the end of their planned operational lives and will need to be modernized or replaced by new systems over the next two decades. The Congressional Budget Office (CBO) estimates that between 2014 and 2023, the costs of the administration’s plans for nuclear forces will total $355 billion.

  • Guards at U.K. nuclear weapons facility slept on the job, skipped routine patrols

    Police officers of the U.K. Ministry of Defense police, assigned to guard Britain’s nuclear weapons, are under investigation after it has been reported that they had slept on the job and failed to complete routine patrols at a nuclear weapons facility. The Atomic Weapons Establishment (AWE) in Burghfield, Berkshire, is the location of the complex final assembly of nuclear weapons, and also where the U.K. nuclear warheads are maintained and decommissioned.

  • Y-12 security breach update: Old nun awaits sentencing while costs of new Y-12 facility not to be released until 2015

    On 28 July 2012, three senior citizens, led by an 83-year old nun, easily breached the supposedly impregnable security systems protecting the Y-12 National Security Complex at Oak Ridge, Tennessee. The three peace activists wondered the grounds of the maximum security facility for a while before being noticed by security personnel. While the three aging protesters are awaiting sentencing, the two companies — Bechtel Corporation and Babcock and Wilcox – which were responsible for designing and implementing security at Y-12, have been named as the primary construction contractors for planning and design of the new uranium processing facility (UPF) to be built at Y-12.