Award Data

Infrasound and seismic measurements are used by DTRA and the DoD for nuclear test monitoring, terrorist blast forensics, battle damage assessment, and environmental monitoring. However, these long wavelength physical signals are typically recorded through single-point sensors or sparse low density arrays. As a result, the critical signals of interest are often corrupted or masked by noise or inter ...

A significant performance gap exists between the theoretical number of Floating Point Operations (FLOPS) that a HPC machine is capable of sustaining and the number of FLOPS realized by real-world HPC applications. One of the principle reasons for this gap is the parasitic work that computational processes must do to communicate with one another. It has been shown that this communication work can b ...

DTRA is faced with the challenge of extracting and effectively utilizing information from a very large and diverse set of natural language and structured data sources. Current methods often lack contextualization and are generally noisy, shallow, patchy, and overly low-level. We will develop a unifying, general, and elegant solution to address this challenge, based on the overall Textual Rulelog a ...

Nuclear weapons effects (NWE) testing and other experiments conducted with plasma radiation sources require that test articles be exposed to radiation but protected from fast moving debris generated by a high power source event. Solid barriers or membranes are unacceptable because they attenuate the desired radiation, and physical shutters of reasonable size and complexity have difficulty reaching ...

Orora Design Technologies proposes to develop electronic design automation (EDA) tools employing minimally invasive circuit design-based methods to mitigate single event effects (SEEs) for next generation Ultra-DSM CMOS (

For ultra high speed applications in DoD satellite systems, devices and circuits fabricated from III–V semiconductor compounds offer significant advantages over silicon-based technology in terms of operating speed and power. However, the uncertainty in single-event-effect (SEE) response of compound technologies forces the use of empirically-based hardening techniques with penalties in increased ...

Analysis of nuclear material samples in the field has many advantages over laboratory analysis. Laboratory analyses can be slow, involve increased expense, lead to additional waste generation and disposal problems, and may introduce errors due to sample degradation or mishandling. In situ analysis mitigates all of these problems. The specific aim of this project is the development of a truly por ...