FR2485790B1 - - Google Patents

Info

Publication number
FR2485790B1
FR2485790B1 FR8013966A FR8013966A FR2485790B1 FR 2485790 B1 FR2485790 B1 FR 2485790B1 FR 8013966 A FR8013966 A FR 8013966A FR 8013966 A FR8013966 A FR 8013966A FR 2485790 B1 FR2485790 B1 FR 2485790B1
Authority
FR
France
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.)
Expired
Application number
FR8013966A
Other languages
French (fr)
Other versions
FR2485790A1 (en
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.)
Compagnie Generale de Radiologie SA
Original Assignee
Compagnie Generale de Radiologie 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 Compagnie Generale de Radiologie SA filed Critical Compagnie Generale de Radiologie SA
Priority to FR8013966A priority Critical patent/FR2485790A1/en
Publication of FR2485790A1 publication Critical patent/FR2485790A1/en
Application granted granted Critical
Publication of FR2485790B1 publication Critical patent/FR2485790B1/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
    • A61B6/03—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
    • A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
    • 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
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/548—Remote control of the apparatus or devices
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers
    • G21K1/046—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers varying the contour of the field, e.g. multileaf collimators

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
FR8013966A 1980-06-24 1980-06-24 Prim. filter for radiology - where geometric profile of filter can be modulated by remote control to alter contrast of image on viewing screen Granted FR2485790A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8013966A FR2485790A1 (en) 1980-06-24 1980-06-24 Prim. filter for radiology - where geometric profile of filter can be modulated by remote control to alter contrast of image on viewing screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8013966A FR2485790A1 (en) 1980-06-24 1980-06-24 Prim. filter for radiology - where geometric profile of filter can be modulated by remote control to alter contrast of image on viewing screen

Publications (2)

Publication Number Publication Date
FR2485790A1 FR2485790A1 (en) 1981-12-31
FR2485790B1 true FR2485790B1 (en) 1984-09-14

Family

ID=9243444

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8013966A Granted FR2485790A1 (en) 1980-06-24 1980-06-24 Prim. filter for radiology - where geometric profile of filter can be modulated by remote control to alter contrast of image on viewing screen

Country Status (1)

Country Link
FR (1) FR2485790A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472828A (en) * 1982-07-23 1984-09-18 Minnesota Mining And Manufacturing Company X-Ray filter for chest X-rays
US4497062A (en) * 1983-06-06 1985-01-29 Wisconsin Alumni Research Foundation Digitally controlled X-ray beam attenuation method and apparatus
NL8304398A (en) * 1983-12-22 1985-07-16 Philips Nv ROENTGEN RESEARCH DEVICE WITH SELECTIVE FILTER.
NL8501795A (en) * 1985-06-21 1987-01-16 Optische Ind De Oude Delft Nv APPARATUS AND METHOD FOR SLITTLE RADIOGRAPHY WITH DIFFERENT VENT RADIATION ENERGIES.
NL8502910A (en) * 1985-10-24 1987-05-18 Sipko Luu Boersma ROENTGEN VIEW IMAGER.
US4953189A (en) * 1985-11-14 1990-08-28 Hologic, Inc. X-ray radiography method and system
CA1244971A (en) * 1985-11-14 1988-11-15 Shih-Ping Wang X-ray radiography method and system
NL8503151A (en) * 1985-11-15 1987-06-01 Optische Ind De Oude Delft Nv Piezoelectric Attenuation Tongue System For Slit Radiography Equipment.
NL8700781A (en) * 1987-04-02 1988-11-01 Optische Ind De Oude Delft Nv METHOD AND APPARATUS FOR CONTRAST HARMONIZATION OF A ROENTGEN IMAGE.
NL8702113A (en) * 1987-09-07 1989-04-03 Optische Ind De Oude Delft Nv DEVICE FOR GAP RADIOGRAPHY.
NL8801589A (en) * 1988-06-22 1990-01-16 Optische Ind De Oude Delft Nv DEVICE FOR CRACK RADIOGRAPHY INCLUDING ABSORPTION ELEMENTS, AND METHOD FOR MANUFACTURING ABSORPTION ELEMENTS.
FR2654917A1 (en) * 1989-11-24 1991-05-31 Gen Electric Cgr RADIOLOGY APPARATUS WITH HOMOGENIZATION FILTER.
US4975933A (en) * 1990-03-26 1990-12-04 General Electric Company Bow-tie X-ray filter assembly for dual energy tomography
DE19536804A1 (en) * 1995-10-02 1997-04-03 Deutsches Krebsforsch Contour collimator for radiation therapy
DE102018214311A1 (en) * 2018-02-26 2019-08-29 Siemens Healthcare Gmbh Device for changing a spatial intensity distribution of an X-ray beam
GB2624858A (en) * 2022-11-25 2024-06-05 Univ Hospital Southampton Nhs Foundation Trust Radiation shield

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE347859B (en) * 1970-11-30 1972-08-14 Medinova Ab

Also Published As

Publication number Publication date
FR2485790A1 (en) 1981-12-31

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Legal Events

Date Code Title Description
ST Notification of lapse