AN X-RAY-SENSITIVE REAL-TIME SPATIAL LIGHT MODULATOR IS PROPOSED AS A REPLACEMENT FOR PHOTOGRAPHIC FILM FOR MEDICAL IMAGING APPLICATIONS (A) IN WHICH TIME IS OF THE ESSENCE, (B) THAT EMPLOY LOW X-RAY ENERGIES (E.

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$50,000.00
Award Year:
1984
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
1414
Agency Tracking Number:
1414
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
118 Clark Street, Newton Centre, MA, 02159
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
C. WARDE
PRESIDENT
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
AN X-RAY-SENSITIVE REAL-TIME SPATIAL LIGHT MODULATOR IS PROPOSED AS A REPLACEMENT FOR PHOTOGRAPHIC FILM FOR MEDICAL IMAGING APPLICATIONS (A) IN WHICH TIME IS OF THE ESSENCE, (B) THAT EMPLOY LOW X-RAY ENERGIES (E.G. ONCOLOGY) AND (C) FOR THE DIAGNOSIS OF TISSUE MOVEMENT (E.G. ACTION OF THE JOINTS) IN REAL TIME. THE DEVICE BEING PROPOSED IS A MODIFIED VERSION OF THE MICROCHANNEL SPATIAL LIGHT MODULATOR (MSLM). THE MSLM EMPLOYS A MICROCHANNEL PLATE AND A HIGH-RESISTIVITY ELECTRO-OPTIC CRYSTAL. THE MCP CONVERTS X-RAY IMAGES INTO ELECTRON IMAGES AND DEPOSITS THE ELECTRON IMAGE ON THE CYRSTAL. THE RESULTING ELECTRIC FIELD IN THE CRYSTAL MODULATES THE REFRACTIVE INDEX OF THE CRYSTAL AND THEREBY ALTERS THE POLARIZATION OF THE READOUT OPTICAL BEAM. AN OPTICAL INTENSITY IMAGE IS RECOVERED BY THE USE OF A POLARIZING ANALYSER. IN THE PHASE I RESEARCH PROGRAM WE EXPECT TO DEMONSTRATE THE FEASIBILITY OF X-RAY IMAGE CONVERSION, AND TO CHARACTERIZE THE SPATIAL RESOLUTION, FRAMING SPEED, STORAGE CHARACTERISTICS, AND EXPOSURE SENSITIVITY OF THE DEVICE. THE PHASE II RESEARCH PLAN WILL BE CONCERNED WITH THE PROBLEMS OF SCALING THE ACTIVE AREA OF THE DEVICE UP TO ABOUT 6 INCHES IN DIAMETER. IT IS EXPECTED THAT THE DEVICE WILL FIND WIDESPREAD USE IN HOSPITALS, ON THE BATTLE FIELD, AND IN VETERINARY MEDICINE.

* information listed above is at the time of submission.

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