GB2005514B - Methods of and apparatus for examining objects by the use of radiation - Google Patents

Methods of and apparatus for examining objects by the use of radiation

Info

Publication number
GB2005514B
GB2005514B GB7838963A GB7838963A GB2005514B GB 2005514 B GB2005514 B GB 2005514B GB 7838963 A GB7838963 A GB 7838963A GB 7838963 A GB7838963 A GB 7838963A GB 2005514 B GB2005514 B GB 2005514B
Authority
GB
United Kingdom
Prior art keywords
radiation
methods
examining objects
examining
objects
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
GB7838963A
Other languages
English (en)
Other versions
GB2005514A (en
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.)
Ohio Nuclear Inc
Original Assignee
Ohio Nuclear Inc
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 Ohio Nuclear Inc filed Critical Ohio Nuclear Inc
Publication of GB2005514A publication Critical patent/GB2005514A/en
Application granted granted Critical
Publication of GB2005514B publication Critical patent/GB2005514B/en
Expired 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
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4275—Arrangements for detecting radiation specially adapted for radiation diagnosis using a detector unit almost surrounding the patient, e.g. more than 180°
    • 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]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/421—Filtered back projection [FBP]

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Measurement Of Radiation (AREA)
  • Image Analysis (AREA)
GB7838963A 1977-09-30 1978-10-02 Methods of and apparatus for examining objects by the use of radiation Expired GB2005514B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83808477A 1977-09-30 1977-09-30

Publications (2)

Publication Number Publication Date
GB2005514A GB2005514A (en) 1979-04-19
GB2005514B true GB2005514B (en) 1982-03-17

Family

ID=25276216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7838963A Expired GB2005514B (en) 1977-09-30 1978-10-02 Methods of and apparatus for examining objects by the use of radiation

Country Status (5)

Country Link
JP (1) JPS5466791A (enrdf_load_stackoverflow)
AU (1) AU522916B2 (enrdf_load_stackoverflow)
DE (1) DE2842518A1 (enrdf_load_stackoverflow)
FR (1) FR2433927A1 (enrdf_load_stackoverflow)
GB (1) GB2005514B (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288695A (en) * 1979-04-13 1981-09-08 Technicare Corporation Computerized tomographic scanner with shaped radiation filter
HU188200B (en) * 1982-09-03 1986-03-28 Medicor Muevek,Hu Convolver
NL8204086A (nl) * 1982-10-22 1984-05-16 Philips Nv Werkwijze en inrichting voor het bepalen van een stralingsverzwakkingsverdeling in een vlak van een lichaam.
EP0109205A3 (en) * 1982-11-15 1985-07-31 Picker International, Inc. Method and apparatus for computed tomography imaging
US4570224A (en) * 1982-11-29 1986-02-11 Elscint, Inc. Combining rebinned and unrebinned parallel ray data with unequal lateral spacing to create tomograph images
JPS6089277A (ja) * 1983-10-19 1985-05-20 Yokogawa Hokushin Electric Corp 逆投影装置
US4590559A (en) * 1983-11-23 1986-05-20 Tokyo Shibaura Denki Kabushiki Kaisha Data disc system for a computed tomography X-ray scanner
CN101854863B (zh) 2007-11-15 2013-08-14 皇家飞利浦电子股份有限公司 用于改进3d x射线成像的图像质量的可移动楔
CN114998462B (zh) * 2022-05-20 2024-10-29 成都理工大学工程技术学院 一种层析γ扫描线衰减系数重建方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1283915A (en) * 1968-08-23 1972-08-02 Emi Ltd A method of and apparatus for examination of a body by radiation such as x or gamma radiation
US3983398A (en) * 1974-11-29 1976-09-28 The Board Of Trustees Of Leland Stanford Junior University Method and apparatus for X-ray or γ-ray 3-D tomography using a fan beam
US3965353A (en) * 1974-12-06 1976-06-22 Albert Macovski Cross-sectional X-ray emission imaging system
GB1537487A (en) * 1975-03-18 1978-12-29 Emi Ltd Radiography
GB1571509A (en) * 1976-03-03 1980-07-16 Emi Ltd Radiography
JPS52106698A (en) * 1977-03-03 1977-09-07 Emi Ltd Radiation photograph

Also Published As

Publication number Publication date
JPS5466791A (en) 1979-05-29
FR2433927A1 (fr) 1980-03-21
AU522916B2 (en) 1982-07-01
FR2433927B1 (enrdf_load_stackoverflow) 1984-06-29
AU3845378A (en) 1980-01-31
DE2842518A1 (de) 1979-04-05
GB2005514A (en) 1979-04-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee