Award Data

Hand-held gamma ray spectrometers are a vital tool for detecting and identifying nuclear materials to counter the threat of radiological and nuclear terrorism. The HPGe crystals in these detectors must operate at cryogenic temperatures to achieve good energy resolution. We propose to develop an innovative, miniature cryogenic cooling system that will be ideal for hand-held detectors. High efficien ...

Surveillance systems record spatially and time-referenced sensor data, such as video imagery. With a growing need to monitor larger regions for longer intervals, there is a corresponding geometric growth in the size of the four-dimensional time-space surveillance recording. Tools that allow efficient exploration of this time-space are key to extracting value from the surveillance data. The critica ...

We propose to prove the feasibility of a high speed non ionizing time domain terahertz (THz) measurement system to replace nuclear gauges. Nuclear source gauges (such as beta and gamma) are used in industrial process monitoring and control, often to measure thickness or mass in paper, plastics, rubber, and food stuffs in manufacturing and packaging. A single system based on low power non-ionizing ...

A laser-based acoustic emission (AE) detection device is proposed for structural stability assessment of buildings in order to provide warning of structural instability or pending collapse. It will help to reduce injuries and fatalities during emergency mitigation operations. This new device will take advantage of innovations in laser ultrasonics, artificial intelligence (AI) and advanced acoustic ...

Stopping vehicles, which are potential car bomb threats or are simply fleeing a crime scene at high speed allows military and law enforcement personnel added effectiveness. Furthermore, the current option of high-speed pursuit adds almost as much danger as might be avoided if the assailant is subdued. For this reason, many local police forces operating on a purely civilian mandate have stopped aut ...

Rootkits are Trojan horses installed by an intruder that mask changes that have been made in a system after attack. They replace or modify intrusion or other system status detecting applications so that they report a properly functioning system to a systems administrator, when in fact, the system has been compromised. Our solution to this requires designing a Linux based PC add on card that can mo ...

Hand-held gamma ray spectrometers are a vital tool for detecting and identifying nuclear materials to counter the threat of radiological and nuclear terrorism. The HPGe crystals in these detectors must operate at cryogenic temperatures to achieve good energy resolution. We propose to develop an innovative, miniature cryogenic cooling system that will be ideal for hand-held detectors. High efficien ...

A low cost Swimmer Detection Sonar Network (SDSN) is now being developed under an ONR Phase 2 SBIR and as a joint project between the USA and Singapore. The SDSN is a network of inexpensive sonar nodes where narrow sonar beams are formed using airbacked parabolic reflectors. The feasibility of the system has been proven through trials conducted in Singapore harbor and full development is well unde ...

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