Radiological threats

  • Nuclear powerCalifornia’s San Onofre nuclear power plant retired due to safety concerns

    Southern California Edison (SCE) has decided it will retire the San Onofre nuclear power plant located on the California coast. The decision comes after officials debated for over a year whether the twin reactors could be safely restarted. The power plant is located in a populated area, with millions living near it.

  • DetectionLaser-driven neutrons to detect nuclear smuggling

    Researchers have successfully demonstrated for the first time that laser-generated neutrons can be enlisted as a useful tool in the war on terror, as Los Alamos shows first nuclear material detection by single short-pulse-laser-driven neutron source.

  • Radiation risksFukushima-derived radioactivity in seafood poses minimal health risks

    Researchers find that the likely doses of radioactivity ingested by humans consuming fish contaminated by radioactive radiation escaping from the debilitated Fukushima reactors fish, are comparable to, or less than, the radiological dosages associated with other commonly consumed foods, many medical treatments, air travel, and other background sources.

  • Nuclear powerHealth impact of Chernobyl accident overestimated: study

    The impact of the Chernobyl nuclear accident has been seriously overestimated, while unfounded statements presented as scientific facts have been used to strangle the nuclear industry, according to Russian researchers.

  • Nuclear wasteReducing the volume of nuclear waste

    The nuclear industry seeks to minimize the volume of nuclear waste by extracting the radioactive elements from spent fuel.This relies on exploiting differences in the chemical bonding of uranium. Scientists have found that in some circumstances the bonding may be surprisingly similar, an important discovery which is going to be important in the amelioration of nuclear waste clean-up and devising new atom-efficient catalytic cycles.

  • Nuclear waste storageEnergy Department to invest in used nuclear fuel storage research

    As part of its efforts to develop an effective strategy for the safe and secure storage and management of used nuclear fuel, the Energy Department the other day announced a new dry storage research and development project. In the Energy Department’s budget request presented last week, the department requested $60 million for nuclear waste research and development.

  • Nuclear powerFormer NRC chairman: all 104 U.S. nuclear reactors suffer from “irreparable” safety issues

    According to former U.S. Nuclear Regulatory Commission (NRC) chairman Gregory Jaczko, all 104 nuclear reactors in the United States currently have irreparable safety issues and should be shut down and replaced. Jaczko was the NRC chairman from 2009 through 2012.

  • Nuclear powerCritics: Fukushima-influenced U.S. nuclear accident response procedures are flawed

    The U.S. government is using the Fukushima nuclear disaster in Japan two years ago as a model for rewriting its plans on how to respond to radiation contamination — emphasizing long-term cleanup and return of residents to affected areas instead of emergency response. Critics say this is a mistake.

  • Nuclear powerU.S. nuclear industry faces a wave of nuclear power station retirements

    A wave of U.S. nuclear power station retirements is on the horizon. The typical design life of a nuclear power plant is 40 years. There are 104 nuclear power plants in the United States, and their average age is 34 years — only a few years short of, and fast approaching, their design life. Almost 30 U.S. commercial and research reactors already have started decommissioning. A $400 million is regarded as the bargain basement price tag for cleaning up a single reactor.

  • Nuclear safetyOhio’s Perry nuclear power plant was vulnerable to sabotage

    A report issued last week said that operators at the Perry Nuclear Power Plant in Ohio found a vulnerability in the security of the plant last year, and that that vulnerability could have put the public in harm’s way. The utility operating the nuclear plant reported to the Nuclear Regulatory Commission (NRC) that the plant’s security program for monitoring underground pathways and other unattended openings were insufficient to detect and prevent unauthorized access to the protected area.

  • Nuclear wasteNew radioactive waste repackaging facility in Los Alamos

    The Los Alamos National Laboratory has brought a third waste repackaging facility online to increase its capability to process nuclear waste for permanent disposal. The box line facility is largest of its kind ever built.

  • Nuclear powerU.S. nuclear industry resists stricter, post-Fukushima safety measures

    Since the March 2011 Fukushima disaster, members of the Nuclear Regulatory Commission (NRC) have been debating whether or not to impose even stricter safety measures on the thirty-one U.S. boiling water reactors (BWRs). Utility companies have been fighting any new safety regulations, arguing that the security measures they have are more than enough.

  • Nuclear wasteRadioactive leaks at Washington’s Hanford nuclear reservation

    Earlier this month, Washington Governor Jay Inslee announced that a radioactive waste tank at one of the nation’s most contaminated nuclear sites is leaking, bringing more bad news to Washington’s Hanford nuclear reservation. The 177 tanks at the plant, which hold millions of gallons of highly radioactive waste from plutonium production, are way past their intended 20-year life span.

  • Nuclear infrastructureSandia Labs refurbishes nuclear security infrastructure

    Sandia National Laboratories has completed $199 million in facilities construction and repair as part of an 11-year national effort to revitalize the physical infrastructure of nuclear security enterprise sites. The work is part of a program established in 2001 to reduce a long-standing backlog of deferred maintenance at the National Nuclear Security Administration’s (NNSA) eight sites, including Sandia.

  • Radiation risksDefusing the threat of ionizing radiation

    The damage to Japan’s Fukushima nuclear reactor after the 2011 Tohoku earthquake raised concerns regarding U.S. preparedness to treat large-scale human exposure to ionizing radiation. Additionally, the immediate destructive potential of nuclear and radiological weapons, as well as their long-term health and economic impacts, continue to be of concern to DoD. Researchers look for  novel approaches to mitigate immediate and long-term health damage from acute exposure to ionizing radiation and model its biophysical effects.