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US Patent 4070581 - Detection of radiation
US Patent Issued on January 24, 1978
Estimated Patent Expiration Date:
January 24, 1995Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
January 24, 1995Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractIn a computerized axial tomographic apparatus it is proposed to use, as radiation detectors, alkali halide scintillator crystals cooperating with photodiodes to measure the light output therefrom, or else photodiodes directly sensitive to the radiation passed through the patient. For advantageous operation, especially in regard to drift and rapidity of operation, it is proposed to use the photodiodes photovoltaically and in the so-called "current mode". | Inventors
AssigneeApplicationNo. 05/702093 filed on 07/02/1976US Classes:250/370.09, X-ray or gamma-ray system250/366, Plural electric signalling means250/367, Plural or composite luminophor250/370.11Scintillation systemField of Search250/366Plural electric signalling meansExaminersPrimary: Anderson, Bruce C.Attorney, Agent or FirmUS Patent References3890506, 3936638, RadiologyIssued on: 02/03/1976 Inventor: Gibbons3970853Transverse section radionuclide scanning system Issued on: 07/20/1976 Inventor: Kuhl , et al. Foreign Application Priority Data1975-07-10 UK |
