• Dolphin-inspired innovative radar system to detect surveillance, explosive devices

    Inspired by the way dolphins hunt by using bubble nets, scientistshave 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 (other metallic items like pipes, drinks cans, nails for example) that may be mistaken for a genuine target by traditional radar and metal detectors.

  • U.S. “bomb library” marks 10-year anniversary

    It has been ten years since the FBI established the Terrorist Explosive Device Analytical Center (TEDAC), and since that time the multi-agency operation — sometimes referred to as America’s bomb library — has become an important tool in the nation’s fight against terrorism. Since its creation in 2003, TEDAC has examined more than 100,000 IEDs from around the world and currently receives submissions at the rate of 800 per month. Two million items have been processed for latent prints — half of them this year alone.

  • Lawmakers: Old plastic gun law has not kept pace with technology

    The U.S. House of Representativesvoted last Tuesday to renew the 25-year old Undetectable Firearms Actwhich prohibits firearms that can evade metal detectors and X-ray machines. Law enforcement agencies say that developments in 3D printing make the law insufficient, and lawmakers who proposed amending the Act say that the only way to make such guns detectable is to require that at least one component of the firing mechanism in a plastic gun contain enough metal to be detectable in a magnetometer — and that that component be undetachable. The NRA opposes these requirements, saying that they would infringe on the Second Amendment rights of citizens.

  • Airport scanner vendor failed to disclose use of Chinese components

    Recently TSA cancelled a $60 million contract with Rapiscan Systems, a manufacturer of anatomically revealing airport security scanners, after Rapiscan was found to be using unapproved Chinese components in its scanners – and failing to disclose this fact to TSA. Rapiscan, in bidding on the contract, submitted a list of U.S.-made components used in the scanners to the agency, as required by law. After the company received an approval of that list – and the $60 million contract – it ordered the same components from a Chinese company — the Shanghai Advanced Non-Destructive Testing – instructing the Chinese company to label the Chinese-made components with the same part numbers as the originally approved, U.S.-made components, apparently in an effort to make it more difficult for TSA inspectors to notice the illegal switch. Members of the House Homeland Security Committee, charging that the use of Chinese components made the machines susceptible to sabotage, disruption, or spying, want to know whether TSA was aware of Rapiscan’s shenanigans.

  • Airport screeners miss unusual – and possibly dangerous -- items

    A smartphone app that turns gamers into airport baggage screeners is showing that finding weapons and other illegal items is not all that easy, even when you are looking for them. Researchers analyzed data from searches of twenty million virtual suitcases in the game Airport Scanner created by Kedlin Co. and found that users failed in most cases to identify objects that occurred only rarely. The reason: Commonly found objects may be crowding out identification of the unusual items.

  • Bottle scanning tech to enhance airport security, benefit passengers

    Los Alamos scientists have advanced a Magnetic Resonance Imaging (MRI) technology that may provide a breakthrough for screening liquids at airport security. They have added low-power X-ray data to the mix, and as a result have unlocked a new detection technology. Funded in part by the DHS’s Science and Technology Directorate (S&T), the new system is named MagRay.

  • China buys Implant Sciences explosives detectors to protect nuclear power plants

    Implant Sciences has sold multiple units of its QS-H150 handheld explosives trace detectors to a customer in China, who will be deploy them across several locations for the purpose of protecting nuclear power plants in multi-layered security environments.

  • 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.

  • 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.

  • Reducing security threats from explosives

    Researchers, as part of the Awareness and Localization of Explosives-Related Threats center (ALERT), a DHS Center of Excellence, are working on ways to detect explosives and neutralize their impact. The researchers are developing portable detectors as well as larger systems to scan for explosives. Some technologies will analyze the spectrum of light shining through vaporized samples; others will analyze solid residues.

  • A new generation of odor-releasing materials for training dogs

    Traditionally, the training of bomb-sniffing dogs has been a hazardous job, but newly developed odor-releasing materials could take the risk out of that work. Scientists are seeking to patent a novel system that can capture scents and release them over time.

  • History of explosives highlighted in museum exhibit

    For more than seventy years, Los Alamos National Laboratory has been a frontrunner in explosives research, development, and applications. To highlight the Laboratory’s work in the field of explosives, the Bradbury Science Museum is opening a new exhibit, titled “The Science of Explosives.”

  • Bomb-detecting lasers to improve security checkpoints

    Research has put the possibility of bomb-detecting lasers at security checkpoints within reach by developing a laser that can detect micro traces of explosive chemicals on clothing and luggage. The laser not only detects the explosive material, but it also provides an image of the chemical’s exact location, even if it’s merely a minute trace on a zipper.

  • New detectors for chemical, biological threats

    In the late 1990s, Sandia scientists developed a simple-to-use handheld chemical detector for the military, the MicroChemLab. Ever since, Sandia has improved such microfluidics- and microelectromechanical (MEMS) systems-based instruments that identify chemicals based on gas chromatography, or GC, and resonator-style instruments such as surface acoustic wave (SAW) detectors. The lab’s researchers are building on this sensor work to invent tiny detectors that can sniff out everything from explosives and biotoxins to smuggled humans.

  • 3D Earth model accurately pinpoints source of earthquakes, explosions

    During the cold war, U.S. and international monitoring agencies could spot nuclear tests and focused on measuring their sizes. Today, they are looking around the globe to pinpoint much smaller explosives tests. Researchers are working on developing a 3-D model of the Earth’s mantle and crust called SALSA3D. The purpose of this model is to assist the U.S. Air Force and the international Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) in Vienna, Austria, more accurately locate all types of explosions.