Three-Dimensional Dielectric Imaging with Microwave           Frequency Sweeping
{'Code': '15030000', 'Directorate': {'Abbreviation': 'TIP', 'LongName': 'Dir for Tech, Innovation, & Partnerships'}, 'Division': {'Abbreviation': 'TI', 'LongName': 'Translational Impacts'}}
{'SignBlockName': 'Ritchie B. Coryell', 'PO_EMAI': None, 'PO_PHON': None}
This project will perform research on a technique of three.dimensional          fourier mapping of microwave scattering by frequency sweeping.  The             research could lead to development of an imaging system for dielectric          evaluation and for medical diagnosis.  While there exist many imaging           techniques, direct imaging of dielectric profiles is currently                  unavailable.  The microwave dose for imaging of the human body is               expected to be on the order of microwatts per gram to tens of                   microwatts per gram, which is two to three orders of magnitude below            the recommended safety level.  The image will provide a dielectric              profile of the target with a resolution of about 3 mm in each of the            three dimensions.  As a result of the sensitivity of dielectric                 permittivity with respect to various biological tissues, this method            of imaging should provide greater contrast between tumor and normal             tissues than other imaging techniques.  The technique might also be             useful for non.invasive evaluation of other materials where dielectric          profile is needed, or in the mapping of other physical parameters such          as temperature or pressure.
{'FirstName': 'Theodore', 'LastName': 'Guo', 'PI_MID_INIT': 'C', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Theodore C Guo', 'EmailAddress': 'Potomac Research, Inc.                  10618 Tanager Lane', 'PI_PHON': '3012797751', 'NSF_ID': '000415712', 'StartDate': '01/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Potomac Research Inc', 'CityName': 'Potomac', 'ZipCode': '208546316', 'PhoneNumber': '3012797751', 'StreetAddress': '10618 Tanager Lane', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Maryland', 'StateCode': 'MD', 'CONGRESSDISTRICT': '06', 'CONGRESS_DISTRICT_ORG': 'MD06', 'ORG_UEI_NUM': None, 'ORG_LGL_BUS_NAME': None, 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '5371', 'Text': 'SBIR Phase I'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8761047.xml'}