ES8104906A1 - Un dispositivo para determinar diferencias de absorcion lo- cales en una seccion de un objeto - Google Patents

Un dispositivo para determinar diferencias de absorcion lo- cales en una seccion de un objeto

Info

Publication number
ES8104906A1
ES8104906A1 ES494739A ES494739A ES8104906A1 ES 8104906 A1 ES8104906 A1 ES 8104906A1 ES 494739 A ES494739 A ES 494739A ES 494739 A ES494739 A ES 494739A ES 8104906 A1 ES8104906 A1 ES 8104906A1
Authority
ES
Spain
Prior art keywords
ray source
ray
collimating
elements
determining local
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.)
Expired
Application number
ES494739A
Other languages
English (en)
Other versions
ES494739A0 (es
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES8104906A1 publication Critical patent/ES8104906A1/es
Publication of ES494739A0 publication Critical patent/ES494739A0/es
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
    • A61B6/06—Diaphragms
    • 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
    • G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation
    • 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
    • A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (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)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measurement Of Radiation (AREA)

Abstract

DISPOSITIVO PARA DETERMINAR DIFERENCIAS DE ABSORCION LOCALES EN UNA SECCION O PARTE DE UN OBJETO. CONSTA DE UNA FUENTE DE RAYOS X, QUE PRODUCE UN HAZ EN ABANICO, Y UN DETECTOR DE RAYOS X, PERMANENTEMENTE DIRIGIDO HACIA LA FUENTE DE RAYOS X. EL DETECTOR COMPRENDE VARIOS ELEMENTOS COLIMADORES EN FORMA DE PLACAS, DIRIGIDOS HACIA LA FUENTE DE RAYOS X. PERPENDICULAR AL PLANO DEL HAZ Y SEGUN LA LINEA DE PROYECCION DE CADA ELEMENTO COLIMADOR HACIA LA FUENTE, HAY UN ELEMENTO ABSORBENTE DE RADIACION CILINDRICO, DE WOLFRAMIO Y MOLIBDENO, DE MAYOR DIMENSION QUE EL ELEMENTO COLIMADOR EN LA DIRECCION DE PROPAGACION DE LOS RAYOS Y MENOR DIMENSION EN UNA DIRECCION TRANSVERSAL A DICHA DIRECCION DE PROPAGACION. ES UTIL PARA TOMA DE RADIOGRAFIAS.
ES494739A 1979-09-05 1980-09-03 Un dispositivo para determinar diferencias de absorcion lo- cales en una seccion de un objeto Granted ES494739A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7906634A NL7906634A (nl) 1979-09-05 1979-09-05 Inrichting voor het bepalen van lokale absorptie- verschillen in een objekt.

Publications (2)

Publication Number Publication Date
ES8104906A1 true ES8104906A1 (es) 1981-05-16
ES494739A0 ES494739A0 (es) 1981-05-16

Family

ID=19833786

Family Applications (1)

Application Number Title Priority Date Filing Date
ES494739A Granted ES494739A0 (es) 1979-09-05 1980-09-03 Un dispositivo para determinar diferencias de absorcion lo- cales en una seccion de un objeto

Country Status (7)

Country Link
US (1) US4457009A (es)
EP (1) EP0025248B1 (es)
JP (1) JPS5645642A (es)
CA (1) CA1151778A (es)
DE (1) DE3065617D1 (es)
ES (1) ES494739A0 (es)
NL (1) NL7906634A (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983077A (ja) * 1982-11-02 1984-05-14 Yokogawa Hokushin Electric Corp Ｘ線検出器
JPS59112813A (ja) * 1982-12-17 1984-06-29 Ishigaki Kiko Kk 濾布走行式フイルタプレス
US4672648A (en) * 1985-10-25 1987-06-09 Picker International, Inc. Apparatus and method for radiation attenuation
DE8704182U1 (de) * 1987-03-20 1987-07-09 Siemens AG, 1000 Berlin und 8000 München Computertomograph
WO1996005904A1 (fr) * 1994-08-23 1996-02-29 Ishigaki Mechanical Industry Co., Ltd. Appareil de suspension pour le tissu filtrant d'un filtre-presse
DK175850B1 (da) * 2001-04-24 2005-03-29 Force Technology System og fremgangsmåde til måling af lagtykkelser af et flerlagsrör
DE102004019972A1 (de) * 2004-04-23 2005-11-17 Siemens Ag Detektormodul zur Erfassung von Röntgenstrahlung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964017C (de) * 1952-12-07 1957-05-16 Robert Janker Dr Blendenvorrichtung mit jeweils um ihre Laengsachse drehbaren Lamellen fuer Bildschichten bei Roentgengeraeten
US4051379A (en) * 1975-11-28 1977-09-27 Artronix, Inc. Axial tomographic apparatus and detector
GB1583868A (en) * 1976-08-28 1981-02-04 Emi Ltd Radiography
US4096391A (en) * 1976-10-15 1978-06-20 The Board Of Trustees Of The University Of Alabama Method and apparatus for reduction of scatter in diagnostic radiology
US4093863A (en) * 1977-03-03 1978-06-06 Artronix, Inc. Tomographic apparatus
US4277684A (en) * 1977-08-18 1981-07-07 U.S. Philips Corporation X-Ray collimator, particularly for use in computerized axial tomography apparatus
JPS5484989A (en) * 1977-11-02 1979-07-06 American Science & Eng Inc Ct *computer tomography*
US4180737A (en) * 1978-02-06 1979-12-25 General Electric Company X-ray detector

Also Published As

Publication number Publication date
JPS6316128B2 (es) 1988-04-07
CA1151778A (en) 1983-08-09
NL7906634A (nl) 1981-03-09
JPS5645642A (en) 1981-04-25
US4457009A (en) 1984-06-26
EP0025248A1 (en) 1981-03-18
ES494739A0 (es) 1981-05-16
DE3065617D1 (en) 1983-12-22
EP0025248B1 (en) 1983-11-16

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