3-D DIELECTRIC IMAGING WITH MICROWAVE FREQUENCY SWEEPING

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$45,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
7566
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Potomac Research Inc
10618 Tanager Lane, Potomac, MD, 20854
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
DR THEODORE C GUO
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
RESEARCH ON A TECHNIQUE OF THREE-DIMENSIONAL FOURIER MAPPING, BY FREQUENCY SWEEPING, OF MICROWAVE SCATTERING IS PROPOSED. THE RESEARCH IS EXPECTED TO LEAD TO DEVELOPMENT OF AN IMAGING SYSTEM FOR DIELECTRIC EVALUATION AND FOR MEDICAL DIAGNOSIS OF HUMAN ANATOMY. WHILE THERE EXIST MANY IMAGING TECHNIQUES, DIRECT IMAGING OF DIELECTRIC PROFILES IS CURRENTLY UNAVAILABLE. THE MICROWAVE DOSE FOR IMAGING OFHUMAN BODY IS EXPECTED TO BE IN THE ORDER OF MICROWATT PER GRAM TO TENS OF MICROWATT PER GRAM, WHICH IS TWO TO THREE ORDERS OF MAGNITUDE BELOW THE SAFETY LEVEL. THE IMAGE WILL PROVIDE A DIELECTRIC PROFILE OF THE TARGET WITH A RESOLUTIONUP TO ABOUT 3 MM IN EACH OF THE THREE DIMENSIONS. DUE TO THE SENSITIVITY OF DIELECTRIC PERMITTIVITY WITH RESPECT TO VARIOUS BIOLOGICAL TISSUES, IT WILL, COMPARING TO EXISTING IMAGING DEVICES, PROVIDE GREATER CONTRAST BETWEEN TUMOR AND NORMAL TISSUES, AND BE APPLICABLE FOR LOCALIZATION AND IDENTIFICATION OF TUMORS AND FOR PLANNING OF TUMOR TREATMENT. THIS IMAGING TECHNIQUE MAY ALSO BE UTILIZED IN NON-INVASIVE EVALUATION OF OTHER MATERIALS WHERE DIELECTRIC PROFILE IS NEEDED, OR IN THE MAPPING OF OTHER PHYSICAL PARAMETERS TO WHICH DIELECTRIC PERMITTIVITY IS SENSITIVE, SUCH AS TEMPERATURE OR PRESSURE.

* information listed above is at the time of submission.

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