Award Data

The Defense Threat Reduction Agency, DTRA, currently uses technologies capable of detecting IEDs using airborne sensors that are demonstrated as reliable. These systems are only used for detection purposes and are not capable of neutralizing the IED. Due to IEDs being located in remote, dangerous, and hostile locations, there is high casualty risk for personnel to manually neutralize the target by ...

This is a proposal to develop a unique, Ultrashort Pulsed Off-axis Digital Holography (USPODH) system, enabling the high frequency imaging of detailed 3D structures within aerosol fields under harsh thermodynamic conditions and high optical depths where ordinary imaging is essentially useless. Many powerful imaging methods have failed to provide this capability because noise from multiple scatteri ...

In this project, we propose to identify and examine solution growth approaches for engineering perovskite single crystal for gamma spectrometry in a hand-held sensor format. We will demonstrate that the solution growth approach is able to produce perovskite single crystal in sufficient volume and quality to yield a detector crystal whose utilization presents no inherent environmental, health, or s ...

With the advent of high-density low-power sub-20nm technology processes and circuits with tens-of-billions of transistors, radiation-induced single-event effects present a new set of design challenges for terrestrial applications. Developing reliable single-event effect resilient microelectronics in these modern technology nodes is a resource and time-intensive endeavor that further requires valid ...

DTRA uses High Fidelity Computer Codes (HFCC) to investigate weapon effects and techniques for countering Weapons of Mass Destruction (WMD). End-to-end HFCC simulations in support of the DTRA Agent Defeat Warfighter Capability will require calculations including multiple phenomena that occur in vastly different time scales (µ-sec to hours). As DTRA becomes increasingly reliant on computational mo ...

Alameda Applied Sciences Corporation proposes to develop and test a capillary discharge source of KCl as an alternative to Ar gas puffs for Decade Quad. The innovative feature of such a capillary source is that the initial z-pinch load is highly ionizedand well collimated, as demonstrated earlier with a NaF source on Gamble II and Double-EAGLE (DE). Consequently, the stability and radiation effici ...

Alameda Applied Sciences Corporation (AASC) proposes to adapt a commercially available instrument called a Laser Wavefront Analyzer (LWA) to capture snap-shots of the current and density in the initial coronal region of an imploding z-pinch on the 0.7 MAHawk accelerator at NRL. These snap-shots will reveal the structure of instabilities in the formation of the pinch and allow us to correlate impro ...

A six-month Phase I project is proposed to demonstrate the feasibility of a hierarchical method for more accurately estimating the material parameters of constitutive models in DYNA3D, thereby enhancing the fidelity of nonlinear finite element models. Thehierarchical approach combines the distinct advantages of coupon, component and system-level testing with Bayesian statistical parameter estimat ...

BMDO and the Services have the requirement to certify some of their military assets as being survivable against the effects of prompt X-rays from nuclear weapons. This certification is generally accomplished by a combination of testing the assets directlyfor their survivability at DTRA's X-ray simulators, and by modeling and simulation. Both the development of X-ray simulators and benchmarking com ...

For the next generation imaging equipment, CdZnTe/CdTe sensors are urgently needed unless a new semiconductor can be found. This Small Business Innovation Research project addresses the issues which prevent the wide applications of CdZnTe for roomtemperature radiation detection. The scientific approach of this project is to introduce an appropriate amount of deep-level defects or impurities to ...