FR2276667A1 - Diaphragme a ouverture reglable de facon continue - Google Patents

Diaphragme a ouverture reglable de facon continue

Info

Publication number
FR2276667A1
FR2276667A1 FR7519241A FR7519241A FR2276667A1 FR 2276667 A1 FR2276667 A1 FR 2276667A1 FR 7519241 A FR7519241 A FR 7519241A FR 7519241 A FR7519241 A FR 7519241A FR 2276667 A1 FR2276667 A1 FR 2276667A1
Authority
FR
France
Prior art keywords
continuously adjustable
adjustable opening
opening diaphragm
diaphragm
continuously
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
FR7519241A
Other languages
English (en)
French (fr)
Other versions
FR2276667B1 (enExample
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.)
Forschungszentrum Juelich GmbH
Original Assignee
Kernforschungsanlage Juelich GmbH
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 DE19742431115 external-priority patent/DE2431115C3/de
Application filed by Kernforschungsanlage Juelich GmbH filed Critical Kernforschungsanlage Juelich GmbH
Publication of FR2276667A1 publication Critical patent/FR2276667A1/fr
Application granted granted Critical
Publication of FR2276667B1 publication Critical patent/FR2276667B1/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiology & Medical Imaging (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiation-Therapy Devices (AREA)
  • Electron Beam Exposure (AREA)
  • Diaphragms For Cameras (AREA)
  • Powder Metallurgy (AREA)
FR7519241A 1974-06-28 1975-06-19 Diaphragme a ouverture reglable de facon continue Granted FR2276667A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742431115 DE2431115C3 (de) 1974-06-28 Strahlenblende mit kontinuierlich veränderbarer Blendenöffnung

Publications (2)

Publication Number Publication Date
FR2276667A1 true FR2276667A1 (fr) 1976-01-23
FR2276667B1 FR2276667B1 (enExample) 1978-02-24

Family

ID=5919213

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7519241A Granted FR2276667A1 (fr) 1974-06-28 1975-06-19 Diaphragme a ouverture reglable de facon continue

Country Status (3)

Country Link
US (1) US4027167A (enExample)
FR (1) FR2276667A1 (enExample)
GB (1) GB1510816A (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324979A (en) * 1979-06-21 1982-04-13 National Research Development Corporation Variable neutron collimator
US4511801A (en) * 1982-07-19 1985-04-16 Bethlehem Steel Corporation Radiation scanning and measuring device
US4528453A (en) * 1982-07-30 1985-07-09 Albert Einstein College Of Medicine Of Yeshiva University Dual collimator
SE454947B (sv) * 1985-11-11 1988-06-13 Augustsson Nils Erik Anordning for stralfeltsavskermning vid radioterapi
US5165106A (en) * 1991-06-06 1992-11-17 Siemens Medical Laboratories, Inc. Contour collimator
US5216255A (en) * 1992-03-31 1993-06-01 Siemens Medical Laboratories Beam profile generator for photon radiation
US5332908A (en) * 1992-03-31 1994-07-26 Siemens Medical Laboratories, Inc. Method for dynamic beam profile generation
DE10162256B4 (de) * 2001-12-18 2004-09-09 Siemens Ag Strahlenblende für ein Röntgengerät
US6865030B2 (en) * 2003-06-11 2005-03-08 Agilent Technologies, Inc. Variable optical slit assembly
JP5620039B2 (ja) * 2003-08-01 2014-11-05 カール・ツァイス・エスエムティー・ゲーエムベーハー 少なくとも１つのシステム絞りを備えた光学結像装置
US8129701B2 (en) * 2007-02-27 2012-03-06 Al-Sadah Jihad H Areal modulator for intensity modulated radiation therapy
CN103649829B (zh) 2011-07-07 2017-06-06 佳能电子株式会社 光量调节装置和光学设备
CN103765310B (zh) * 2011-07-07 2016-08-24 佳能电子株式会社 光量调节设备和光学设备
JP6099924B2 (ja) * 2012-10-04 2017-03-22 キヤノン株式会社 光学機器およびそれを備えた撮像装置
US11862357B2 (en) * 2020-10-21 2024-01-02 Illinois Tool Works Inc. Adjustable collimators and x-ray imaging systems including adjustable collimators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542196A (en) * 1949-10-24 1951-02-20 Kelley Koett Mfg Company X-ray apparatus
US2836729A (en) * 1956-07-18 1958-05-27 Ca Atomic Energy Ltd Beam therapy diaphragm
US3115580A (en) * 1960-10-20 1963-12-24 Jade D Brewer X-ray collimator with shutter track and actuation means on each side of guide means
US3156824A (en) * 1960-12-01 1964-11-10 Howdon Videx Products Corp X-ray collimator having visible light centering arrangement and an adjustable filter for X-rays

Also Published As

Publication number Publication date
DE2431115B2 (de) 1976-07-01
GB1510816A (en) 1978-05-17
DE2431115A1 (de) 1976-01-15
US4027167A (en) 1977-05-31
FR2276667B1 (enExample) 1978-02-24

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Legal Events

Date Code Title Description
ST Notification of lapse