FR2215777A1 - - Google Patents

Info

Publication number
FR2215777A1
FR2215777A1 FR7402925A FR7402925A FR2215777A1 FR 2215777 A1 FR2215777 A1 FR 2215777A1 FR 7402925 A FR7402925 A FR 7402925A FR 7402925 A FR7402925 A FR 7402925A FR 2215777 A1 FR2215777 A1 FR 2215777A1
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.)
Withdrawn
Application number
FR7402925A
Other languages
French (fr)
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.)
Philips Nuclear Medicine Inc
Original Assignee
Picker Corp
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 Picker Corp filed Critical Picker Corp
Publication of FR2215777A1 publication Critical patent/FR2215777A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
    • G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • X-Ray Techniques (AREA)
FR7402925A 1973-01-29 1974-01-29 Withdrawn FR2215777A1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00327644A US3829701A (en) 1973-01-29 1973-01-29 Radiation collimator

Publications (1)

Publication Number Publication Date
FR2215777A1 true FR2215777A1 (enrdf_load_stackoverflow) 1974-08-23

Family

ID=23277408

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7402925A Withdrawn FR2215777A1 (enrdf_load_stackoverflow) 1973-01-29 1974-01-29

Country Status (6)

Country Link
US (1) US3829701A (enrdf_load_stackoverflow)
JP (1) JPS49107485A (enrdf_load_stackoverflow)
CA (1) CA991760A (enrdf_load_stackoverflow)
DE (1) DE2404194A1 (enrdf_load_stackoverflow)
FR (1) FR2215777A1 (enrdf_load_stackoverflow)
NL (1) NL7401105A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473776A1 (fr) * 1980-01-11 1981-07-17 Cgr Mev Appareil d'irradiation utilisant des sources radioactives

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936647A (en) * 1973-05-04 1976-02-03 Cgr Medical Corporation X-ray collimator for controlling the emission of secondary radiation
US3947690A (en) * 1974-07-11 1976-03-30 The Machlett Laboratories, Inc. Radiation limiting means
FR2398487A1 (fr) * 1977-07-29 1979-02-23 Radiologie Cie Gle Appareil radiologique pour tomographie axiale transverse
US4246488A (en) * 1979-03-09 1981-01-20 Picker Corporation Radiation collimator
US4380820A (en) * 1980-06-19 1983-04-19 The Machlett Laboratories, Incorporated Compact X-ray collimator
US4489426A (en) * 1981-12-23 1984-12-18 General Electric Company Collimator with adjustable aperture
US4696022A (en) * 1984-01-27 1987-09-22 University Of Pittsburgh Stereoscopic radiography apparatus and method
US4946238A (en) * 1984-01-27 1990-08-07 University Of Pittsburgh Fiber optic coupler
US4692937A (en) * 1984-05-02 1987-09-08 University Of Pittsburgh Radiography apparatus and method
US4905268A (en) * 1985-10-25 1990-02-27 Picker International, Inc. Adjustable off-focal aperture for x-ray tubes
US4672648A (en) * 1985-10-25 1987-06-09 Picker International, Inc. Apparatus and method for radiation attenuation
DE3604935A1 (de) * 1986-02-17 1987-08-20 Siemens Ag Blende mit kontinuierlich veraenderbarer wirksamer blendenoeffnung fuer diffraktometrische messeinrichtungen
DE8711572U1 (de) * 1987-08-26 1988-12-22 Siemens AG, 1000 Berlin und 8000 München Primärstrahlenblende für Röntgendiagnostikgeräte
GB2211710A (en) * 1987-10-28 1989-07-05 Philips Nv Multileaf collimator
US5396534A (en) * 1993-10-12 1995-03-07 Thomas; Howard C. Shutter apparatus for collimating x-rays
CN100561332C (zh) * 2004-12-09 2009-11-18 Ge医疗系统环球技术有限公司 X射线辐照器和x射线成像设备
CN1786818B (zh) * 2004-12-09 2011-06-08 Ge医疗系统环球技术有限公司 X射线辐照器和x射线成像设备
US20060133575A1 (en) * 2004-12-21 2006-06-22 Advanced X-Ray Technology, Inc. X-ray needle apparatus and method for radiation treatment
US8139719B2 (en) * 2007-03-13 2012-03-20 Koninklijke Philips Electronics Nv Add-on-X-ray-collimator for non-symmetrical beam collimation
CN105403580B (zh) * 2015-12-28 2018-10-09 清华大学 准直器和检查系统
US9892810B2 (en) * 2016-03-01 2018-02-13 Claymount Assemblies B.V. Collimator shutter drive mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473776A1 (fr) * 1980-01-11 1981-07-17 Cgr Mev Appareil d'irradiation utilisant des sources radioactives
EP0033050B1 (fr) * 1980-01-11 1984-05-16 C.G.R. MeV Appareil d'irradiation comprenant un dispositif de collimation secondaire réglable

Also Published As

Publication number Publication date
US3829701A (en) 1974-08-13
JPS49107485A (enrdf_load_stackoverflow) 1974-10-12
DE2404194A1 (de) 1974-08-01
NL7401105A (enrdf_load_stackoverflow) 1974-07-31
CA991760A (en) 1976-06-22

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Legal Events

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