Award Data

To address the DoE need for a high-power laser source used for synchronous photoinjection of GaAs photoemission guns, AdValue Photonics proposes to develop a radio-frequency synchronized 100W mode-locked green laser source at a GHz rate. Previously-demonstrated GHz-rate modelocked solid-state/fiber lasers suffer from a reliability issue due to the use of fragile free-space bulk optics for their la ...

There is an urgent need to develop a new high-energy 2m ultrafast fiber laser system in order to achieve the optimized efficiency of the ESASE process, which is beneficial in areas ranging from atomic and molecular sciences to chemical, materials, and biological studies. To reach the mid-IR wavelengths for ESASE application, the traditional way is to shift the wavelengths of these commercially ava ...

Accelerators used for nuclear-physics research require megawatts of radio-frequency energy. They currently employ vacuum-tube power amplifiers or conventional solid-state amplifiers that are inefficient and therefore consume a great deal of prime power. Many other applications including semiconductor processing, cellular-telephone base station transmitters and military communication systems simila ...

Accelerators used for nuclear-physics research require megawatts of radio-frequency energy. They currently employ vacuum-tube power amplifiers or conventional solid-state amplifiers that areinefficient and therefore consume a great deal of prime power. Many other applications including semiconductor processing, cellular-telephone base station transmitters and military communication systems similar ...

Particle detectors for nuclear physics and high energy physics experiments require high performance, high sensitivity digitizers for read-out electronics. Analog-to-digital converters (ADCs) are used in such applications but limit experimental results because of a restrictive combination of speed, resolution, power, and radiation-hardness. Many instruments need very high channel counts, a costly r ...

A critical aspect in Particle Accelerator Instrumentation is the precise, real-time control of the high- energy particle beams used to create the conditions required for sub-atomic physics experiments. The accelerator instrumentation systems require digital control and feedback with extremely high linearity and dynamic range to achieve system performance targets. In addition, with the added requir ...

The unique properties of beryllium (Be) have lead to many applications, ranging from the aerospace and nuclear industry to manufacturing and electronics. Unfortunately, beryllium is a Class A EPA carcinogen and, when inhaled into the lungs, can cause an incurable and potentially fatal lung disease. This project will demonstrate the use of fluorescence to improve the detection limit for beryllium ...

THE COMBUSTION OF COAL INTRODUCES HAZARDOUS EMISSION PRODUCTS, INCLUDING RESPIRABLE PARTICLES THAT ARE 10UM IN DIAMETER. THE REMOVAL OF THESE PARTICLES FROM THE COMBUSTION GAS STREAM IS DIFFICULT DUE TO THE HIGH TEMPERATURES AND CORROSIVE ENVIRONMENT. A CERAMIC FILTER HAS THE GRATST POTENTILA TO SURVIVE THE HARSH GAS ENVIRONMENT; HOWEVER, CERAMIC FILTER MATERIALS WHICH HAVE THUS FAR BEEN TESTED AR ...

SILICON CARBIDE-SILICON CARBIDE (SIC/SIC) COMPOSITES HOLD SIGNIFICANT PROMISE FOR USE IN FUSION ENERGY SYSTEMS. EVEN GREATER OPPORTUNITY EXITS IF THE THERMAL CONDUCTIVITY OF THE CHEMICALLY VAPOR INFILTRATED (CVI) MARIX COULD BE IMPROVED. IT HAS BEEN SHOWN THAT THE THERMAL CONDUCTIVITY OF HOT PRESSED SIC CAN BE SIGNIFICANTLY ENHANCED USING SELECT DOPANTS. THIS PHASE I PROGRAM WILL INVESTIGATE THE E ...