NL7602701A - X-ray scanning system - with multiple detectors providing detailed absorption data for a body under examination - Google Patents

X-ray scanning system - with multiple detectors providing detailed absorption data for a body under examination

Info

Publication number
NL7602701A
NL7602701A NL7602701A NL7602701A NL7602701A NL 7602701 A NL7602701 A NL 7602701A NL 7602701 A NL7602701 A NL 7602701A NL 7602701 A NL7602701 A NL 7602701A NL 7602701 A NL7602701 A NL 7602701A
Authority
NL
Netherlands
Prior art keywords
radiation
detectors
scanning system
body under
under examination
Prior art date
Application number
NL7602701A
Other languages
Dutch (nl)
Other versions
NL181622C (en
NL181622B (en
Original Assignee
Emi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB736675A external-priority patent/GB1447210A/en
Priority claimed from GB2648575A external-priority patent/GB1540583A/en
Application filed by Emi Ltd filed Critical Emi Ltd
Priority claimed from GB2648576A external-priority patent/GB1539404A/en
Publication of NL7602701A publication Critical patent/NL7602701A/en
Publication of NL181622B publication Critical patent/NL181622B/en
Application granted granted Critical
Publication of NL181622C publication Critical patent/NL181622C/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4007—Arrangements for generating radiation specially adapted for radiation diagnosis characterised by using a plurality of source units
    • A61B6/4014—Arrangements for generating radiation specially adapted for radiation diagnosis characterised by using a plurality of source units arranged in multiple source-detector units
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
    • A61B6/4028—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot resulting in acquisition of views from substantially different positions, e.g. EBCT
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4275—Arrangements for detecting radiation specially adapted for radiation diagnosis using a detector unit almost surrounding the patient, e.g. more than 180°

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Optics & Photonics (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Immunology (AREA)
  • Toxicology (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

In a system for examining a body by means of penetrating radiation, having (i) a source irradiating the body with a flat beam, (ii) a detector unit for the detection of the radiation and emission of output signals related to the absorption of the radiation by the body, intended to be processed to produce a representation of the distribution of the absorption in a plane section through the body and (iii) a device for scanning of the flat beam of radiation relative to the body, in order to irradiate the section along a series of beam paths passing through the body from differing directions, (a) the detector unit comprises a series of detectors, a pre-determined number of which are irradiated at any instant by the beam of radiation, and (b) the scanning device moves the beam of penetrating radiation over the detectors in order progressively to change the detectors irradiated. Advantageously a mechanism moves the source with respect to the body in order to produce at least part of the scanning by the beam of radiation.
NL7602701A 1975-02-21 1976-03-15 RADIO CONTROLLER. NL181622C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB736675A GB1447210A (en) 1974-02-22 1975-02-21 Method and apparatus for measuring conditions inside a metal covered furnace
GB1155375 1975-03-20
GB2648575A GB1540583A (en) 1975-03-12 1975-06-21 Radiography
GB2648576A GB1539404A (en) 1975-06-26 1976-06-25 Electrical capacitors

Publications (3)

Publication Number Publication Date
NL7602701A true NL7602701A (en) 1976-09-22
NL181622B NL181622B (en) 1987-05-04
NL181622C NL181622C (en) 1987-10-01

Family

ID=27447588

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7602701A NL181622C (en) 1975-02-21 1976-03-15 RADIO CONTROLLER.

Country Status (1)

Country Link
NL (1) NL181622C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365329A1 (en) * 1976-09-27 1978-04-21 American Science & Eng Inc TOMOGRAPHIC SCAN DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365329A1 (en) * 1976-09-27 1978-04-21 American Science & Eng Inc TOMOGRAPHIC SCAN DEVICE

Also Published As

Publication number Publication date
NL181622C (en) 1987-10-01
NL181622B (en) 1987-05-04

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
SNR Assignments of patents or rights arising from examined patent applications

Owner name: THORN EMI PATENTS LIMITED

V1 Lapsed because of non-payment of the annual fee

Effective date: 19951001