• Pyreos, ultra‐low power consumption IR sensor specialist, secures $4 million investment

    Edinburgh, Scotland-based Pyreos Limited, a specialist in ultra‐low power consumption infrared sensor technology, the other day announced plans for international expansion after securing a further funding round of $4 million. It is possible to use Pyreos sensor arrays in many applications, among them border security, where they can identify human movement at distances of several kilometers.

  • Detecting threats in a crowd

    Around a military camp situated close to a built-up area there are always people moving about. Scientists at FOI, the Swedish Defense Research Agency, have created a multi-sensor system designed to be able to detect threats by identifying unusual patterns of movement involving individuals or groups.

  • Quick ID for water pathogens

    New research purports to help people stay healthy by developing a real-time water bug testing that could precisely identify the culprits responsible for waterborne disease.

  • Where should U.S. radioactive waste be buried?

    In the United States, about 70,000 metric tons of spent commercial nuclear fuel are located at more than seventy sites in thirty-five states. Shales and other clay-rich (argillaceous) rocks have never been seriously considered for holding America’s spent nuclear fuel, but it is different overseas. France, Switzerland, and Belgium are planning to put waste in tunnels mined out of shale formations, and Canada, Japan, and the United Kingdom are evaluating the idea.

  • Russia to build floating nuclear power plants

    Global warming is opening the Arctic Ocean to shipping – and causing the rapid melting of Arctic ice. Russia says that ship-based nuclear power plants would allow it to provide power to remote cities in Siberia, and provide power to oil and gas drilling operations in the Arctic (about 30 percent of the world’s unclaimed natural gas is in the Arctic, and about, 60 percent of that unclaimed natural gas is in the Russian Arctic). Experts worry about the ability of ship-based nuclear reactor to withstand extreme weather events, or terrorist attacks. The U.S. Army deployed its own floating nuclear reactor – the Sturgis – in the Panama Canal Zone from 1968 to 1976.

  • Where should U.S. radioactive waste be buried?

    In the United States, about 70,000 metric tons of spent commercial nuclear fuel are located at more than seventy sites in thirty-five states. Shales and other clay-rich (argillaceous) rocks have never been seriously considered for holding America’s spent nuclear fuel, but it is different overseas. France, Switzerland, and Belgium are planning to put waste in tunnels mined out of shale formations, and Canada, Japan, and the United Kingdom are evaluating the idea.

  • Video imaging system for remote detection of hidden threats

    By adapting superconducting technology used in advanced telescope cameras, researchers have built a prototype video imaging system for detecting hidden weapons and other threats at distances up to twenty-eight meters away.

  • Nuclear fuel withstands accident conditions’ high-temperature

    A safer and more efficient nuclear fuel is on the horizon. A team of researchers have reached a new milestone with tristructural-isotropic (TRISO) fuel, showing that this fourth-generation reactor fuel might be even more robust than previously thought. Byproducts of the fission process have the potential to escape the fuel, especially at very high temperatures. Controlled, high-temperature testing of irradiated TRISO) fuel demonstrated that fission product release remains relatively low at high temperatures postulated to occur in accidents and beyond.

  • Sharp increase in radioactive water leaks at Fukushima

    Tokyo Electric Power(TEPCO) has reported a rise in groundwater radiation levels, saying a tank at the firm’s Fukushima plant leaked 300 metric tons of toxic water in August 2013. Water samples from wells, taken in mid-October, show a record-high concentration of beta-ray emitting substances, and a sharp increase in the presence of radioactive tritium. Japanese prime ministerShinzo Abe, in a tacit admission that Japan cannot effectively handle the continuing radiation leaks from the stricken plant, said Japan would be interested in receiving foreign help to contain widening radioactive water leaks at Fukushima.

  • Dolphin-inspired radar system detects hidden surveillance, explosive devices

    Scientists, inspired by the way dolphins hunt using bubble nets, have developed a new kind of radar that can detect hidden surveillance equipment and explosives. The twin inverted pulse radar (TWIPR) is able to distinguish true targets, such as certain types of electronic circuits that may be used in explosive or espionage devices, from clutter (for example, other metallic items like pipes, drinks cans, or nails) which may be mistaken for a genuine target by traditional radar and metal detectors.

  • New spectrometry standard for handheld chemical detectors

    When it comes to detectors for dangerous chemicals, toxins, or nefarious germs, smaller and faster is better. Size and speed, however, must still allow for accuracy, especially when measurements by different instruments must give the same result. The recent publication of a new standard provides confidence that results from handheld chemical detectors can be compared, apples-to-apples.

  • Squeezing light improves performance of MEMS sensors

    Microelectromechanical systems, known as MEMS, are ubiquitous in modern military systems such as gyroscopes for navigation, tiny microphones for lightweight radios, and medical biosensors for assessing the wounded. Such applications benefit from the portability, low power, and low cost of MEMS devices. The use of MEMS sensors is now commonplace, but they still operate many orders of magnitude below their theoretical performance limits, due to two obstacles: thermal fluctuations and random quantum fluctuations, a barrier known as the standard quantum limit.

  • Preventing a Bhopal-like catastrophe in New Jersey

    New Jersey is home to ninety facilities which produce and store large quantities of highly toxic chemicals. A superstorm or terrorist attack could doom millions of people around southern New Jersey and eastern Pennsylvania to a Bhopal, 1984-like fate if either of these facilities and their storage tanks were affected.Typically, in the aftermath of major disasters, a blue ribbon panel is created to review preventative measures that could have been taken before the disaster. Security experts say that there is no need to wait for a post-disaster blue ribbon panel investigation to know what sensible safety measures should be implemented now.

  • Bolstering the safety, security of U.S. nuclear weapons

    To improve the safety and security of nuclear weapons, specialists must weigh the risks and benefits of making intrinsic changes to the warheads (possibly degrading their performance) or pursuing external changes such as better access controls, according to experts. While improvements such as use of shock- and fire-resistant chemical explosives in the warheads could further decrease the risk of an accidental nuclear detonation or dispersal of plutonium, most of the experts who participated in a workshop on the issue were not greatly concerned about the safety level of the current U.S. nuclear arsenal.

  • Acoustic detection identifies IEDs – and their explosive yield

    A number of different tools are currently used for explosives detection. These range from dogs and honeybees to mass spectrometry, gas chromatography, and specially designed X-ray machines.A new acoustic detection system, consisting of a phased acoustic array that focuses an intense sonic beam at a suspected improvised explosive device, can determine the difference between those that contain low-yield and high-yield explosives.