Plural image signal system for scanning x-ray apparatus

Albert, R D

Title: Plural image signal system for scanning x-ray apparatus

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Abstract

Radiographic images are produced by situating a subject (13) between a scanning x-ray source (16) and an x-ray detector (14) to produce electrical signals indicative of variations of x-ray transmissivity in different regions of the subject (13). A signal processing system (11) enables simultaneous display of a plurality of visible images at a plurality of display devices (52 to 55) with each image emphasizing a different aspect of the information generated by a given scanning of the subject. A feedback circuit (68) from the detector (14) to the x-ray source (16) maintains the average level of the detector signal constant while allowing short term fluctuations so that only abrupt or brief changes of x-ray transmissivity in the subject are visible in a first image at a first display device (52). A second image signal circuit (93) recovers the data suppressed by the feedback circuit (68) to enable a full contrast range image to be presented at another display device (53) and to enableines of an ultrasonic image and for later reading-out of stored lines via the dbye chosen metal dihalide vapor is ionized by ; the total economic market potential is 64.4% of the technical potential, or 2072.4 MW, equivalentmore »« less

Inventors:: Albert, R D

Publication Date:: Tue Mar 31 00:00:00 EST 1981

OSTI Identifier:: 6142566

Patent Number(s):: US 4259582

Application Number:: TRN: 81-018001

Assignee:: IFI; EDB-81-127755

Resource Type:: Patent

Resource Relation:: Patent File Date: Filed date 2 Nov 1979

Country of Publication:: United States

Language:: English

Subject:: 62 RADIOLOGY AND NUCLEAR MEDICINE; CAT SCANNING; IMAGE PROCESSING; ELECTRONIC CIRCUITS; IMAGES; SIGNALS; X-RAY EQUIPMENT; COMPUTERIZED TOMOGRAPHY; DIAGNOSTIC TECHNIQUES; EQUIPMENT; PROCESSING; TOMOGRAPHY; 550602* - Medicine- External Radiation in Diagnostics- (1980-)

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                    Albert, R D. Plural image signal system for scanning x-ray apparatus.  United States: N. p., 1981. 
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                    Albert, R D. Plural image signal system for scanning x-ray apparatus.  United States.

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                    Albert, R D. 1981.  
        "Plural image signal system for scanning x-ray apparatus".  United States.

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@article{osti_6142566,

  title        = {Plural image signal system for scanning x-ray apparatus},

  author       = {Albert, R D},

  abstractNote = {Radiographic images are produced by situating a subject (13) between a scanning x-ray source (16) and an x-ray detector (14) to produce electrical signals indicative of variations of x-ray transmissivity in different regions of the subject (13). A signal processing system (11) enables simultaneous display of a plurality of visible images at a plurality of display devices (52 to 55) with each image emphasizing a different aspect of the information generated by a given scanning of the subject. A feedback circuit (68) from the detector (14) to the x-ray source (16) maintains the average level of the detector signal constant while allowing short term fluctuations so that only abrupt or brief changes of x-ray transmissivity in the subject are visible in a first image at a first display device (52). A second image signal circuit (93) recovers the data suppressed by the feedback circuit (68) to enable a full contrast range image to be presented at another display device (53) and to enableines of an ultrasonic image and for later reading-out of stored lines via the dbye chosen metal dihalide vapor is ionized by ; the total economic market potential is 64.4% of the technical potential, or 2072.4 MW, equivalent to 83,621 BPDE; and the lack of an operating history-detailing system reliability, safety, and operating costs-iment and test components; technology testing; analytmperature fatigue stren obtained.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/6142566},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Mar 31 00:00:00 EST 1981},

  month        = {Tue Mar 31 00:00:00 EST 1981}

}

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