Award Data

The Defense Special Weapons Agency (DSWA) has identified a need to improve the radiation hardness of advanced integrated circuit technologies. To be practical, this must be achieved in a cost effective way. This proposal by AET, Inc. directly addresses these concerns. Specifi-cally, this proposal provides a means to achieve significant advance in radiation hardness of large scale integrated cir ...

The nuclear weapons community has traditionally focused on the next generation or level of weapon capability complimented by gathering and analysis of actual test data. Now, with the cessation of actual weapons testing, there is an increased need to use the actual test data in modeling techniques to better understand the phenomenology and potential effects of nuclear weapons. The first phase of ...

Turbulence of gas flows by its very nature is one of the most difficult things to model and measure. We propose to develop a new way of measuring the turbulence and to compare these measurements to predictions using the k-epsilon model. Typical measurements, in the past, use smoke, Schlierin or shadow graph techniques to visually infer turbulence characteristics. These features are either motio ...

Toward understanding how turbulent mixing with air of detonation products of fuel-rich explosives results in further combustion of the detonation products and, therefore, enhanced lethality, we first consider an exothermic reaction of a premixed fuel/oxidizer in a closed vessel in the limit of zero Mach number and infinite Reynolds, Peclet, and Damkohler numbers. To help elucidate the main mechan ...

This proposed work aims at deeloping two major new innovqative capabiliities for the High-Order Godunov (HOG) technology. The first new capability is in the area of low Mach number problems; new code based on the projection method scheme will be developed for complex 3D multiphase flow fields, in particular, the post explosion cloud rise phenomenon includin gparticle transport. The second new ca ...

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The Ktech Team proposes a feasibility study of a fuel/air driven flux compression power unit (FCPU) for electric guns. Through variations of inductance gradients and through changes in scale, the proposed technology will be applicable to both electrothermal/chemical and electromagnetic guns. In the Phase 1 effort, we develop simulation models to predict the performance of the flux compression po ...

"Reflex triode bremsstrahlung sources potentially provide warm X-ray sources (20 keV to 500 keV), capable of generating high doses (~10 cal/g gold) over exposure areas of ~20 cm2. This needed capability allows experimental verification of warm X-ray inducedthermomechanical response, SGEMP, and box IEMP models for achieving component and system certification to hostile environments.In a reflex trio ...

"Reflex triode bremsstrahlung sources potentially provide warm X-ray sources (20 keV to 500 keV), capable of generating high doses (~10 cal/g gold) over exposure areas of ~20 cm2. This needed capability allows experimental verification of warm X-ray inducedthermomechanical response, SGEMP, and box IEMP models for achieving component and system certification to hostile environments.In a reflex trio ...

"Nuclear Weapons Effects Tests (NWET) frequently require that the test article be irradiated in an ultra-clean environment, making survivable shields a necessary part of many debris systems. Survivable shields as large as 12 inches in diameter are requiredbut have yet to be demonstrated in Plasma Radiating Source (PRS) environments. The loads on a survivable shield are a combination of radiation i ...