Award Data

STANDARD MONTE CARLO AND FN METHODS FOR RADIATION TRANSPORT WILL BE USED TO STUDY A NEWLY PROPOSED SHIELD CONFIGURATION FOR PROTECTION AGAINST PARALLEL OR SLIGHTLY DIVERING GAMA RAY BEAMS IN A SPACE (NON-SCATTTERING) ENVIRONMENT. THE NEW CONFIGURATION EMPLOYS LAYERED SHIELDS, WITH CONSIDERABLE SEPARATION BETWEEN THE LAYERS, TO SHADOW THE TARGET, OF THE ASSUMPTION THAT THE DIRECTION OF INCIDENCE IS ...

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Accurate blast simulations based on first-principles, 3-D hydro-codes require hours on notebook PCs. Graphical processing units (GPUs) offer the potential of drastic reductions in run-times. Typical computational fluid dynamics codes perform of the order of 10-100 operations per memory fetch and store. In order to harness the potential of graphical processing units (GPUs), near-perfect streaming ( ...

State of the art Radiation Hardened by Design (RHBD) techniques must scale down in feature size for radiation effects in 45 nm processes, and also scale up in complexity to support radiation fault analysis of VLSI circuits. Recent access to commercial 45 nm CMOS Silicon-on-Insulator (SOI) technologies has increased the interest in this technology for rad-hard electronic applications due to the in ...

It is proposed to develop a novel process for growth of high quality CZT crystals for nuclear detection applications. Currently the THM process is the technology of choice for production of high quality CZT crystals. This process, however, suffers from extremely low growth rates. The development effort proposed here will seek to increase the crystal growth rate by 5-10 times the current levels ...

Future high-performance integrated circuits in DoD satellite systems will require non-planar nano-technology devices, such as MultiGate Field Effect Transistors (MuGFET) or FinFET, which can decrease pattern area of logic circuits below 50% of the conventional planar technologies. The International Technology Roadmap for Semiconductors predicts that such devices will be the cornerstone of sub-32nm ...

Current offensive solutions to neutralize chem/bio agent facilities rely on blast and/or short-burst high-temperature neutralization but have the potential to produce severe collateral damage via agent release. Our team proposes the Dispersed Energetics Coupled for Optimized Neutralization (DECON) Concept, an alternative concept to perform bulk neutralization of agents. The DECON concept can be s ...

Sample preparation has been recognized as the single most important challenge to be faced in the development of detect-to-warn (DTW) systems. Available commercial sample preparation technologies are expensive, slow, and require trained laboratory technicians and sophisticated laboratory equipment for operation. Addressing this need, we propose to design, fabricate, and demonstrate a general purpos ...

Three nuclides are especially useful in detecting thermalized neutrons: helium-3, lithium-6 , and boron-10. Since current demand will deplete reserves of helium-3 in roughly two years, there is a large desire to develop detectors that have the capacity to replace helium-3 tubes. In this proposal we spell out our plan to adapt Neotron''s already developed fission neutron detector into a high effic ...