Detection of radiation
Patent 4070581 Issued on January 24, 1978. Estimated Expiration Date: 
January 24, 1995. Estimated 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.
January 24, 1995. Estimated 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.Patent References 3890506 Radiology Transverse section radionuclide scanning system Patent #: 3970853 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 systemExaminersPrimary: Anderson, Bruce C.Attorney, Agent or FirmForeign Application Priority Data1975-07-10 UKAbstractIn 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".Field of SearchPlural electric signalling means | |
