WO2000046592A3 - Method and apparatus for examination of bodies by penetrating radiation - Google Patents

Method and apparatus for examination of bodies by penetrating radiation Download PDF

Info

Publication number
WO2000046592A3
WO2000046592A3 PCT/NL2000/000076 NL0000076W WO0046592A3 WO 2000046592 A3 WO2000046592 A3 WO 2000046592A3 NL 0000076 W NL0000076 W NL 0000076W WO 0046592 A3 WO0046592 A3 WO 0046592A3
Authority
WO
WIPO (PCT)
Prior art keywords
detector
source
radiation
bodies
penetrating radiation
Prior art date
Application number
PCT/NL2000/000076
Other languages
French (fr)
Other versions
WO2000046592A2 (en
Inventor
Dante Killian
Andrei Bronnikov
Original Assignee
Kema Nv
Dante Killian
Andrei Bronnikov
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 Kema Nv, Dante Killian, Andrei Bronnikov filed Critical Kema Nv
Priority to AU25807/00A priority Critical patent/AU2580700A/en
Publication of WO2000046592A2 publication Critical patent/WO2000046592A2/en
Publication of WO2000046592A3 publication Critical patent/WO2000046592A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/421—Filtered back projection [FBP]

Abstract

The invention relates to a method and an apparatus for examining bodies by means of penetrating radiation, wherein the body is irradiated with a beam of rays which is emitted by a radiation source and which is detected by a radiation detector and converted into electrical signals, wherein the signals are processed in a digital computer in order to produce a three-dimensional reconstruction of the density distribution of the examined body, and wherein the source and the detector carry out a substantially helical movement relative to the body, wherein: the source and the detector are both stationary; the body is moved; the source emits a conical radiation beam; and the detector extends in two directions of the same dimension. The method is particularly suitable for examining bodies of material with a density greater than 2000 kg/m3, for instance a turbine blade.
PCT/NL2000/000076 1999-02-05 2000-02-07 Method and apparatus for examination of bodies by penetrating radiation WO2000046592A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25807/00A AU2580700A (en) 1999-02-05 2000-02-07 Method and apparatus for examination of bodies by penetrating radiation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1011222 1999-02-05
NL1011222A NL1011222C2 (en) 1999-02-05 1999-02-05 Method and apparatus for examining bodies by means of penetrating radiation.

Publications (2)

Publication Number Publication Date
WO2000046592A2 WO2000046592A2 (en) 2000-08-10
WO2000046592A3 true WO2000046592A3 (en) 2001-05-31

Family

ID=19768605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2000/000076 WO2000046592A2 (en) 1999-02-05 2000-02-07 Method and apparatus for examination of bodies by penetrating radiation

Country Status (3)

Country Link
AU (1) AU2580700A (en)
NL (1) NL1011222C2 (en)
WO (1) WO2000046592A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6839402B2 (en) * 2002-02-05 2005-01-04 Kimberly-Clark Worldwide, Inc. Method and apparatus for examining absorbent articles
DE102008020948A1 (en) 2008-04-25 2009-11-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. X-ray computer tomograph and method for examining a component by means of X-ray computer tomography

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122837A (en) * 1982-06-16 1984-01-18 American Science & Eng Inc Ct slice proximity rotary table and elevator for examining large objects
US5390112A (en) * 1993-10-04 1995-02-14 General Electric Company Three-dimensional computerized tomography scanning method and system for imaging large objects with smaller area detectors
EP0875751A1 (en) * 1997-05-02 1998-11-04 General Electric Company Computed tomography metrology

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122837A (en) * 1982-06-16 1984-01-18 American Science & Eng Inc Ct slice proximity rotary table and elevator for examining large objects
US5390112A (en) * 1993-10-04 1995-02-14 General Electric Company Three-dimensional computerized tomography scanning method and system for imaging large objects with smaller area detectors
EP0875751A1 (en) * 1997-05-02 1998-11-04 General Electric Company Computed tomography metrology

Also Published As

Publication number Publication date
NL1011222C2 (en) 2000-08-10
WO2000046592A2 (en) 2000-08-10
AU2580700A (en) 2000-08-25

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