Projection detecting apparatus for computer tomography
Patent 5164973 Issued on November 17, 1992. Estimated Expiration Date: 
January 4, 2011. 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 4, 2011. 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 ReferencesTomograph for producing transverse layer images Radiation-detecting device for computed tomography Multi-element radiation detector Patent #: 4982096 InventorsAssigneeApplicationNo. 637638 filed on 01/04/1991US Classes:378/19, Beam detection system250/367Plural or composite luminophorExaminersPrimary: Church, Craig E.Attorney, Agent or FirmInternational ClassH05G 001/60Foreign Application Priority Data1990-01-05 JPAbstractA projection detecting apparatus for use in a third generation X-ray computer tomography includes an X-ray source and a detector array both mounted on a rotatable gantry for detecting X-ray projections of an object under inspection sequentially at a plurality of angles of the gantry, respectively. The detector array is formed by disposing consecutively a plurality of detector element blocks each constituted by a photodiode array and a scintillator array laminated together. The element blocks are so disposed as to be asymmetric to the center line of a fan-like radiation beam which line extends through the position of the X-ray source and the center of rotation of the gantry. | |
