Award Data

79658B The reliable fabrication of high performance point electron sources is required for scanning transmission electron microscopy (STEM) systems with brightness greater than 109 Amp/cm2/steradian at an extraction voltage of 100 kV. Conventional point sources require a high vacuum for stable operation, and tip failure occurs by vacuum arcing and unstable emission due to atom migration. This p ...

Tellurite glass compositions show significantly enhanced Raman scattering behavior. Optimizing these oxide glass compositions with heavy-metal-oxides(HMO) leads to easily fiberizable and highly non-linear fibers with transparency in the mid-IR wavelength region. These fibers are ideally suited for cascaded Raman lasers to generate multiple wavelengths in the mid-IR region. Furthermore, the high op ...

We propose to study the development of a dedicated neutron source for Single Event Effects (SEE)to be collocated and intregrated with an existing neutron source (LENS)at the Indiana University Cyclotron Facility (IUCF). The study will maximize use of existing facilities to maximize the cost/benefit for the SEE neutron source.

The proposed research will develop a non-equilibrium plasma source for deposition of thin films on refractory materials at temperatures less then 600K. The developed source will also have the flexibility to surface treat thermally sensitive substrates without damage. Our existing non-equilibrium atmospheric plasma source will be optimized for depositing amorphous SiC and ZrO2 thermal barrier mat ...

Several of the present methods of decontamination of biothreat agents, especially the spore-forming Bacillus anthracis (anthrax) rely on steam or disinfection with highly corrosive agents. While these methods are effective, such procedures are impractical when the contaminated materials and/or equipment are mail, paper documents, delicate instruments, or complex machinery such as mail sorting equ ...

The ability to train novice operators on a variety of tasks through automated training systems provides a cost effective and timely solution for a number of applications. The training regimen required for military personnel lends itself to automated training systems. In order to overcome some of the challenges and shortfalls of the traditional intelligent training systems, a strong normative or ...

The exceptional properties of carbon nanotubes that have prompted potential applications rely on their atomic structure. While the sensitivity of nanotube properties on structural features has been extensively investigated through theoretical analysis and numerical simulations, in practice there is no still effective control of the atomic structure of nanotubes in any of the current synthesis tech ...

Military helmets are designed based on costly and time consuming laboratory ballistic tests, firing range, and forensic data. Until now advanced medical imaging and computational modeling tools have not been adequately utilized in the design and optimization of military helmets. The overall objective of this project is to develop 3D medical imaging techniques for the brain ballistic injury model a ...

A new material and processing technology is proposed that will dramatically reduce the cost of manufacturing lightweight mirrors for optical test applications. Such precision mirrors are also required for surveillance, directed energy, and DoD-sponsored space programs. There is a significant amount of research devoted to developing materials and processes for space-born mirrors and ground test use ...

An investigation of the feasibility of commercialization of the results developed in the Center for Computational Mechanics, Washington University, St. Louis, Missouri under AFOSR Grant No. F49620-01-1-0074 entitled; "Mathematical and Computational Framework for a Virtual Fabrication Environment for Aircraft Components". The proposed project will address some of the key requirements identified in ...