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SEVERAL STATES ARE CURRENTLY SEEKING MUCH-NEEDED NEW LOW-LEVEL RADIOACTIVE DISPOSAL SITES IN ACCORDANCE WITH THE LOW-LEVEL RADIOACTIVE WASTE POLICY ACT OF 1980. ANY NEW COMMERCIALREQUIREMENT THAT A SITE BE CAPABLE OF BEING MODELED AND THATITS PERFORMANCE BE ASSURED FOR 500 YEARS. FOR MOST SITES, THE HYDROGEOLOGICAL AND RADIONUCLIDE TRANSPORT CHARACTERIS- TICS OF THE UNSATURATED ZONE ARE MAJOR FACT ...

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WE PROPOSE TO EXPLOIT THE PROPERTIES OF OUR NEW, FAST, BRIGHT SCINTILLATOR, YAIO3:CE(+3) (YAP), TO CONSTRUCT A DETECTOR FOR PHOTONS WITH ENERGIES FROM 20 KEV TO 3 MEV. AN ARRAY OF THESE INDIVIDUAL DETECTORS WILL SERVE AS THE BASIS FOR A BROAD-BAND Y-RAY DOSIMETER CAPABLE OF MEASURING EXPOSURES FROM 5 MR/H TO 1 R/H AND EQUIVALENT DOSES FROM 5 X 10(-2) TO 10 (+4) MSV/H. THEA ADVANTAGES OF YAP SCINTI ...

Thin film multilayers of nanometer scale thickness are fundamental to the future of electronics and communications technologies. Chemical depth profiling by ion etching techniques are critical to the characterization of these structures. A fundamental problem with current ion etching technologies is that typical ion energies (~1k eV to 20 keV) create extensive damage and intermixing of nanometer t ...

Next-generation smart machine tools are currently under research and development. Critical to the success of these tools will be the inclusion of smart sensors. These sensor suites will need to measure physical parameters such as temperature, vibration, pressure and so on. Luna Innovations has extensive experience in developing solar powered wireless systems to transmit sensor data. Luna proposes ...

Luna Innovations proposes to develop for NIST a low-cost, yet high resolution acoustic sensor system capable of determining micro-degree changes in a water path caused by clinical medical radiation devices. The sensors are external to the water and play a negligible role in thermal transfer in contrast to current thermocouple devices in use today. An exciting element in this proposal is APPLES' ab ...

Communications between fire fighting teams traditionally consists of two-way, trunked and conventional radios that severely degrade once inside of a building or tunnel. The proposed research is focused on solving the uninterrupted in-building and in-tunnel voice and data services which are critical for fire fighter safety. Innovative Wireless Technologies (IWT) of Forest, Virginia proposes a feasi ...

Open Tech proposes to adapt the WIMP (Window Icon Menu Pointer) interface for immersive applications. Using logical input devices like windows, menus, sliders, and buttons applications can be built to be device independent. Open Tech¿s innovative approach uses a laser pointer like mouse to control a 3D WIMP interface. Scientists will be able to quickly build interfaces that are easier to learn, ...

We will focus our diode based multiplier technologies toward achieving a source suitable for the NIST imaging system in the 200 ¿ 400 GHz band. To date our best doubler to 200 GHz generates up to 55 mW of (CW) power with 30% efficiency and 15% (3dB) bandwidth. However, the NIST imaging system requires pulsed performance with more than an order of magnitude higher peak input power. Thus, the mul ...