Award Data

Recovery and recycling of acetic acid from aqueous streams is an important industrial separation that is high cost and energy intensive when performed by conventional technology. This makes acetic acid recovery a tantalizing target for a more efficient, lower cost, simpler approach such as membrane technology. However, the required separation performance, combined with the need for robust chemic ...

A critical issue for multi-TEV linear colliders is the inability to demonstrate acceptable microwave performance with accelerating gradients greater than 80 MV/m at radio frequency (RF) pulse widths of 100 to 200 nanoseconds. This project will design, fabricate and test a high efficiency, deflection modulation power amplifier (Choppertron), and construct a unique test facility that will permit hi ...

The exploration and production of oil and natural gas is one of the most computationally demanding endeavors, generating terabytes of data. To optimize the management of a producing oil field or to find new reserves, the E and P data must be readily available to a multidisciplinary asset management team. The data must be easy to access, and it must be effectively managed by a team of geologists, ...

60419 This project will develop a three dimensional, adaptive, unstructured grid treatment of free surface magnetohydrodynamic (MHD) flow of conducting liquids, as envisioned in future fusion systems. In particular, computational fluid dynamic (CFD) tools, capable of predicting the flow behavior of conducting liquids in complex geometry with free surfaces in the presence of an intense heat ...

60176 Current high power gyrotron tubes, used for heating fusion plasmas, produce power in high order TE modes, which are converted to a Gaussian like mode through use of an internal mode converter and launcher. However, these converter systems typically achieve only 85-90% efficiency for conversion of cavity output power to a usable Gaussian mode, leading to significant efficiency degra ...

Next generation light sources and advanced accelerator facilities create ultrashort electron bunches with complex transverse distributions. They demand high-resolution beam profile information that is currently limited to approximately 50microns. Structures on the microscale are not resolvable, thus limiting the efficacy of diagnostics. A novel transverse diagnostic based on fiber optics will be ...

For high performance tokamak plasmas, noise from the edge-localized modes (ELMs) is prevalent. In order to provide feedback control, ELM noise must be discriminated from that of resistive wall modes (RWMs). Although a Kalman filter has been developed that discriminates the ELM noise from the n=1 RWM, no Kalman filter has been constructed to include RWMs for n>1. This project will develop a Kalm ...

The klystrons in use at CEBAF are operated at low efficiency and the prices for servicing of existing tubes and for purchasing spare tubes have been increasing. FAR-TECH, Inc. studied a number of options in regards to improving the efficiency of the klystron systems, as well as replacement technologies such as solid state amplifiers. In Phase I, the solid state amplifier option was identified as ...

Development of very high duty cycle, high gradient photoinjectors is critical for the next generation of accelerator systems, such as X-ray free-electron lasers (FELs), inverse Compton scattering (ICS) sources, energy recovery linear accelerators (ERLs), injectors for linear colliders, as well as variety of industrial systems for homeland security applications. A key issue for high average power, ...

60136 The use of photovoltaic (PV) cells for thermophotovoltaic (TPV) or reflective concentration systems will require a configuration that maximizes performance through dense cell packing and provides for high reliability through the use of bypass diodes. The lack of such a method is an impediment to the commercialization of TPV and reflective concentration systems. This project will use ...