FY2010 - Oak Ridge National Laboratory
FY2010 - Oak Ridge National Laboratory
FY2010 - Oak Ridge National Laboratory
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Seed Money Fund—<br />
Biosciences Division<br />
frequency modulation based on the direct plasmonic effect—can be achieved. Post-experimental<br />
calculations have been started to interpret the experimental results and optimize the performance of the<br />
nanosystem. The theoretical modeling is currently ongoing to support the acquired experimental data.<br />
Information Shared<br />
Passian, A., S. Koucheckian, S. B. Yakubovich, and T. Thundat. 2010. “Properties of index transforms in<br />
modeling of nanostructures and plasmonic systems.” J. Math. Phys. 51, 023518.<br />
Passian, A., L. Tetard, R. Farahi, B. Davison, A. Lereu, T. Thundat, S. Gleason, and K. Tobin. Accepted.<br />
“Trends in high spatial high spectral resolution material characterization.” IEEE proceedings, Future<br />
of Instrumentation.<br />
05855<br />
A Resonant-Based Grave Detector<br />
Arpad Vass, Charles Van Neste, Thomas Thundat, Marc Wise, and Lee Hively<br />
Project Description<br />
This concept involves transmission of electrical energy through the earth-ground plane. Movement of<br />
ground charges produces electromagnetic (EM) waves that propagate along the surface radially from a<br />
transmitter. This form of wave is conventionally known as a surface or Zenneck wave. A nonradiating<br />
system will be designed and assembled to generate electrical standing waves through the earth surface,<br />
linking the transmitter and the receiver. The receiver then collects the surface waves and passively<br />
integrates them (through resonance) over a period of time. The second step will be to determine if this<br />
surface wave can excite bone, allowing for its detection using either an electrical rod attached to an<br />
oscilloscope or by acoustic transducers placed along the ground. In previous experiments conducted by<br />
the investigators, bone was observed to have a resonance at approximately 2 kHz.<br />
Mission Relevance<br />
Locating shallow, clandestine graves containing human remains continues to remain one of the greatest<br />
challenges for law enforcement, military, and human rights organizations worldwide. The primary goal of<br />
the project is the development and testing of a system that uses the transmission of electrical energy<br />
through the ground to create a unique resonance in association with human bone, taking advantage of the<br />
piezoelectric properties of bone, thereby allowing for its detection.<br />
The project has ties to national security, the environment, and science. Locating clandestine graves assists<br />
military operations and law enforcement endeavors worldwide. Modulation of the transmitter to<br />
frequencies other than 2 kHz can help identify and locate subsurface anomalies important in detecting oil<br />
and natural gas deposits and other natural resources.<br />
Results and Accomplishments<br />
The first phase of the project was dedicated to completing preliminary engineering designs and<br />
determining manufacturing specifications, as well as evaluating potential hazards associated with high<br />
voltage research. Three months into the project, parts were ordered corresponding to the established<br />
designs and specifications. Acquired components (which were much more expensive than originally<br />
priced) included 10 gauge enameled magnetic wire, power amplifiers, transformers, high voltage<br />
capacitors and resistors, toroid, and the exoskeletal framework. Assembly of the unit and fabrication of<br />
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