BR7808299A - Dispositivo para determinar a distribuicao de absorcao de um corpo - Google Patents

Dispositivo para determinar a distribuicao de absorcao de um corpo

Info

Publication number
BR7808299A
BR7808299A BR7808299A BR7808299A BR7808299A BR 7808299 A BR7808299 A BR 7808299A BR 7808299 A BR7808299 A BR 7808299A BR 7808299 A BR7808299 A BR 7808299A BR 7808299 A BR7808299 A BR 7808299A
Authority
BR
Brazil
Prior art keywords
absorption distribution
absorption
distribution
Prior art date
Application number
BR7808299A
Other languages
English (en)
Inventor
P Lux
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of BR7808299A publication Critical patent/BR7808299A/pt

Links

Classifications

    • 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
    • G21K1/043—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers changing time structure of beams by mechanical means, e.g. choppers, spinning filter wheels
    • 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
    • A61B6/06—Diaphragms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
BR7808299A 1977-12-19 1978-12-18 Dispositivo para determinar a distribuicao de absorcao de um corpo BR7808299A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772756659 DE2756659A1 (de) 1977-12-19 1977-12-19 Anordnung zur bestimmung der absorptionsverteilung

Publications (1)

Publication Number Publication Date
BR7808299A true BR7808299A (pt) 1979-08-07

Family

ID=6026592

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7808299A BR7808299A (pt) 1977-12-19 1978-12-18 Dispositivo para determinar a distribuicao de absorcao de um corpo

Country Status (8)

Country Link
US (1) US4241404A (pt)
EP (1) EP0002560A1 (pt)
JP (1) JPS5493993A (pt)
BR (1) BR7808299A (pt)
DE (1) DE2756659A1 (pt)
ES (1) ES476079A1 (pt)
IL (1) IL56220A (pt)
PL (1) PL211884A1 (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404631A (en) * 1981-01-21 1983-09-13 U.S. Philips Corporation Method of and device for coding and decoding an image of an object by means of penetrating radiation
FI67465C (fi) * 1981-04-24 1985-03-11 Instrumentarium Oy Installation foer aostadkommande av radiografiska skiktbilder
US4494141A (en) * 1982-09-30 1985-01-15 General Electric Company Dual purpose array processor for a CT scanner
US4626991A (en) * 1983-04-21 1986-12-02 Elscint Incorporated System for reprojecting images acquired by backprojection
GB2170980B (en) * 1985-02-07 1988-05-25 Steve Webb Ct scanner and detector therefor
IL128363A (en) * 1999-02-03 2003-06-24 Moshe Ein Gal Moving collimator system
US7643604B2 (en) * 2002-02-28 2010-01-05 Jupiter Clyde P Stationary inspection system for three-dimensional imaging employing electronic modulation of spectral data from Compton-scattered gammas
US6711235B2 (en) * 2002-05-31 2004-03-23 General Electric Cormpany X-ray inspection apparatus and method
US7050529B2 (en) * 2002-07-23 2006-05-23 Ge Medical Systems Global Technolgy Company, Llc Methods and apparatus for performing a computed tomography scan
GB0309383D0 (en) * 2003-04-25 2003-06-04 Cxr Ltd X-ray tube electron sources
US8094784B2 (en) 2003-04-25 2012-01-10 Rapiscan Systems, Inc. X-ray sources
US10483077B2 (en) 2003-04-25 2019-11-19 Rapiscan Systems, Inc. X-ray sources having reduced electron scattering
GB0812864D0 (en) 2008-07-15 2008-08-20 Cxr Ltd Coolign anode
US8243876B2 (en) 2003-04-25 2012-08-14 Rapiscan Systems, Inc. X-ray scanners
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
US9208988B2 (en) 2005-10-25 2015-12-08 Rapiscan Systems, Inc. Graphite backscattered electron shield for use in an X-ray tube
US6950495B2 (en) * 2003-12-01 2005-09-27 The Boeing Company Backscatter imaging using Hadamard transform masking
JP4675589B2 (ja) * 2004-07-06 2011-04-27 東芝メディカルシステムズ株式会社 Ｘ線コンピュータトモグラフィ装置
WO2006116316A2 (en) 2005-04-22 2006-11-02 University Of Chicago Open source trajectory method and apparatus for interior imaging
DE102005028208A1 (de) * 2005-06-17 2006-12-28 Siemens Ag Strahlenblende für eine Röntgeneinrichtung
US9046465B2 (en) 2011-02-24 2015-06-02 Rapiscan Systems, Inc. Optimization of the source firing pattern for X-ray scanning systems
JP2010507811A (ja) * 2006-10-24 2010-03-11 サーモ ニトン アナライザーズ リミテッド ライアビリティ カンパニー 符号化ビームを使用して物体を検査するための装置
GB0816823D0 (en) 2008-09-13 2008-10-22 Cxr Ltd X-ray tubes
GB0901338D0 (en) 2009-01-28 2009-03-11 Cxr Ltd X-Ray tube electron sources
US8526692B2 (en) * 2011-06-30 2013-09-03 Wisconsin Alumni Research Foundation Reduction of transitivity errors in radiotherapy image registration
WO2014153561A1 (en) * 2013-03-22 2014-09-25 New York University Computer accessible medium for modulating x-ray beam intensity
US11555935B2 (en) * 2017-10-20 2023-01-17 Australian Nuclear Science And Technology Organisation Compressive imaging method and system comprising a detector, a mask, and a drive for rotating the mask about at least one of one or more axes of rotational symmetry

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1184655A (fr) * 1956-08-09 1959-07-24 Philips Nv Dispositif radioscopique
US3944833A (en) * 1968-08-23 1976-03-16 E M I Limited Apparatus for examining a body by radiation such as X or gamma radiation
US4032761A (en) * 1974-10-11 1977-06-28 E M I Limited Tomography
DE2452166A1 (de) * 1974-11-02 1976-05-13 Philips Patentverwaltung Anordnung zum verringern des streustrahleneinflusses
US3965353A (en) * 1974-12-06 1976-06-22 Albert Macovski Cross-sectional X-ray emission imaging system
DE2511231A1 (de) * 1975-03-14 1976-09-23 Philips Patentverwaltung Anordnung zur ermittlung der absorption einer strahlung in einer ebene eines koerpers
DE2556012A1 (de) * 1975-12-12 1977-06-16 Philips Patentverwaltung Verfahren und anordnung zur ermittlung der raeumlichen verteilung einer strahlung in einer ebene eines koerpers
DE2604020C3 (de) * 1976-02-03 1980-12-04 Philips Patentverwaltung Gmbh, 2000 Hamburg Vorrichtung zur Ermittlung der Absorption einer Strahlung in einer Ebene eines Körpers mit einer einen keilförmigen Strahlungsbereich ausblendenden Abblendvorrichtung
GB1571509A (en) * 1976-03-03 1980-07-16 Emi Ltd Radiography
DE2609925C2 (de) * 1976-03-10 1982-06-09 Philips Patentverwaltung Gmbh, 2000 Hamburg Anordnung zur Ermittlung der Verteilung der Absorption eines Körpers
JPS5910557B2 (ja) * 1976-11-15 1984-03-09 株式会社東芝 コンピユ−タ断層撮影装置
US4143273A (en) * 1977-04-11 1979-03-06 Ohio-Nuclear, Inc. Variable collimator

Also Published As

Publication number Publication date
EP0002560A1 (de) 1979-06-27
PL211884A1 (pl) 1979-08-27
US4241404A (en) 1980-12-23
IL56220A0 (en) 1979-03-12
IL56220A (en) 1981-02-27
ES476079A1 (es) 1979-04-16
JPS5493993A (en) 1979-07-25
DE2756659A1 (de) 1979-06-21

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