FR2343464A2 - Transverse axial tomography system - has filter with maximum transparency at centre diminishing evenly to each side - Google Patents

Transverse axial tomography system - has filter with maximum transparency at centre diminishing evenly to each side

Info

Publication number
FR2343464A2
FR2343464A2 FR7606720A FR7606720A FR2343464A2 FR 2343464 A2 FR2343464 A2 FR 2343464A2 FR 7606720 A FR7606720 A FR 7606720A FR 7606720 A FR7606720 A FR 7606720A FR 2343464 A2 FR2343464 A2 FR 2343464A2
Authority
FR
France
Prior art keywords
source
axial tomography
tomography system
section
transverse axial
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7606720A
Other languages
French (fr)
Other versions
FR2343464B2 (en
Inventor
Jean Bossaert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thomson CSF SA
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
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7606720A priority Critical patent/FR2343464A2/en
Publication of FR2343464A2 publication Critical patent/FR2343464A2/en
Application granted granted Critical
Publication of FR2343464B2 publication Critical patent/FR2343464B2/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • A61B6/025—Tomosynthesis

Landscapes

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

Abstract

The transverse axial tomography system has a movable support round each section to be observed for an X-ray source and detector. The latter receives the part of the fine beam from the source not absorved by the section and transforming it into an electrical signal proportional to the quantity of X-phtons not absorbed. The signal is amplified and used for time modulation of a light emitted from a source onto a photographic plate. A lens system between source and plate produces a two-dimensional image on the latter, the light intensity being spatially constant in one direction and variable to a pre-determined law in a second perpendicular to the first. The source, lens system or plate are mechanically moved in synchronism with the support, so that the first detection of the image is similar to that of the beam of the section observed.
FR7606720A 1976-03-09 1976-03-09 Transverse axial tomography system - has filter with maximum transparency at centre diminishing evenly to each side Granted FR2343464A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7606720A FR2343464A2 (en) 1976-03-09 1976-03-09 Transverse axial tomography system - has filter with maximum transparency at centre diminishing evenly to each side

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7606720A FR2343464A2 (en) 1976-03-09 1976-03-09 Transverse axial tomography system - has filter with maximum transparency at centre diminishing evenly to each side

Publications (2)

Publication Number Publication Date
FR2343464A2 true FR2343464A2 (en) 1977-10-07
FR2343464B2 FR2343464B2 (en) 1980-04-30

Family

ID=9170173

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7606720A Granted FR2343464A2 (en) 1976-03-09 1976-03-09 Transverse axial tomography system - has filter with maximum transparency at centre diminishing evenly to each side

Country Status (1)

Country Link
FR (1) FR2343464A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076180A2 (en) * 1981-09-25 1983-04-06 René Coucy Method and apparatus for the production of tomographic images

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076180A2 (en) * 1981-09-25 1983-04-06 René Coucy Method and apparatus for the production of tomographic images
EP0076180A3 (en) * 1981-09-25 1984-07-25 René Coucy Method and apparatus for the production of tomographic images

Also Published As

Publication number Publication date
FR2343464B2 (en) 1980-04-30

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