Award Data

A worldwide network of radionuclide monitoring stations has been established to monitor radioactive fall-out from nuclear tests. These stations sample the air for radioactive particulates and Xenon on a daily basis. This project is to develop a softwaresystem to determine the location, timing, and yield of nuclear events and their corresponding estimation probabilities using the sampled data from ...

A simulation tool is proposed to model and simulate the wind fields, turbulence fields, and the unsteady dispersion of NCBR substances in urban areas on the building to city blocks scale. This Computational Fluid Dynamics (CFD)-based approach has beenshown to accurately simulate the urban wind and turbulence fields with minimal approximations, and has been demonstrated by modeling the flow fields ...

The objective of the proposed program is to develop a portable, low-cost, label-free (reagentless), microarray system capable of near real-time simultaneous detection and identification of multiple analytes (bacteria, viruses, spores, toxins) with highsensitivity and low false alarm rate. Notably, the system will be capable of detection/identification of agents on the basis of protein and/or nucl ...

We propose to develop a prototype for direct electrochemical DNA sensor, using oligonucleotide-doped conductive polymer electrode. Phase I is dedicated to development and characterization of smallpox-specific DNA sensor. Stability, sensitivity,selectivity, reproducibility of DNA detection by the prototype electrode will be characterized with regards to both oligonucleotide- and double stranded DNA ...

Large X-ray generators using gas fill loads are a key element in the DTRA simulator program. Consistent relative timing between the injection of the gas shell and the generator current pulse is crucial to producing consistent, high-yield x-ray pulses.To that end HY-Tech proposes replacing existing high voltage trigger pin technology, with a sensitive, all fiber-optic heterodyne interferometer ba ...

NOVA Scientific will demonstrate a large-area/low-cost neutron detection system having high detector quantum efficiency and high signal-to noise ratio. The approach utilizes an embedded neutron absorber in a solid state detector, utilizing known processingtechnology. The system detects fissionable materials by converting the neutron signal into a large electron pulse. The unit is light for field d ...

Nu-Trek will design, fabricate, and demonstrate 23 models of GaAs PCDs. Technical characteristics include 50-500 ps response time, 10E6-10E12 rad(Si)/s dose rate capability, and a spectral range of < 1 keV through several MeV. The GaAs PCDs will be used asdose rate monitors, flux monitors, and as detectors in spectrometers. They will supplement/replace Si PIN diodes (faster, less sensitive), diamo ...

The detection and identification of threats due to the proliferation of weapons of mass destruction (WMD) or associated special materials is of increasing importance to national security. The goal of the proposed program is to develop a man-portable,battery-operated gamma-ray spectrometer for the high-resolution characterization of the hidden contents of sealed containers, including nuclear, radi ...

Bipolar Junction Transistors (BJT) are used for power and mixed signal applications in radiation environments. Current BJT devices perform with volatile operation requiring constant power supply for uninterrupted access. We propose to create a nonvolatileBJT memoy device using proprietary SMI cerium based ferroelctric mterial (patent pending) prodced by Metal Organic Chemical Vapor Deposition (MOC ...

Radiation tolerant Field Programmable Gate Arrays (FPGA's) have gained wide and rapid acceptance by military and aerospace equipment suppliers; however, there are presently a limited number of chip-sets available for production. The lack of FPGA alternatives severely limits the range of available functions and applications that would greatly benefit from increased performance with radiation hardn ...