Award Data

40640 November 12, 1996 Adherent Technologies, Inc. Scintillators have been used for over 90 years to detect ionizing radiation, but solid organic scintillator, commonly used in physics experimentation, suffer from errors caused by pulse pileup. To minimize this problem, this project will examine a new class of polymeric materials which also offer the po ...

The proposed research combines an innovative eigenvector method with other electromagnetic techniques to produce a hybrid approach towards solving the EM coupling to satellite cavity problem. The physical structure is divided into an exterior region and one or more interior regions. The exterior region is modeled with method of moments (MOM) and or hybrids of MOM with the uniform theory of diffr ...

Enterically transmitted pathogens cause far more illness than toxicants such as lead, mercury, pesticides, and all other forms of chemical contamination. The world has become increasingly vulnerable to the spread of old and flew infectious organisms and water-borne pathogens as illustrated by recent outbreaks of 20 well-known and at least 29 previously unknown diseases. New tests are needed to d ...

40063 November 4, 1996 Amparo Corporation First-generation radioactive beam facilities, in use or under construction, cannot completely address many of the scientific opportunities envisioned until an intense production beam is employed. This project addresses a key element in filling this need, the design of high power nuclear targets. The targe ...

NEMP (Nuclear Electro-Magnetic Pulse), lightning strikes, high powered EMI (Electro-Magnetic Induction), or ESD (Electro-Static Discharge) can impress high transient voltages on wires connecting to electronic modules. These transients are potentially destructive to aircraft electronic components and can result in system failures. To eliminate or substantially reduce the effects of transients on ...

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 ...

Under the proposed research an Interface-Driven Design Manager (IDM) for CAD packages will be developed to greatly reduce the design cycle time for aircraft structures. The IDM represents a first attempt to fully integrate powerful new interface element and design management technologies into the CAD environment. These emerging technologiies have the potential for making multidisciplinary design ...

Recent efforts in the target vulnerability community (fixed ground targets, mobile ground targets, and aircraft) have focused on enhancing the blast and fragmentation modeling from weapon detonations. This includes modeling propagation of the detonation effects from the weapon through their interaction with the target geometry, to the development of loads on and response of the target structure. ...

Warhead design calculations and weapons effectiveness estimates require a methodology to predict structural response and the associated damage to air targets from reactive munitions. The objectives for the proposed Phase I study effort are to develop candidate launch conditioning, reaction initiation and reaction rate methodology, to incorporate existing ballistic, blast and quasi-static pres ...

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 ...