SE8104960L - DIAGNOSTIC DEVICE USING THE COMPTON EFFECT FOR DETERMINING STRUCTURES IN A BODY - Google Patents

DIAGNOSTIC DEVICE USING THE COMPTON EFFECT FOR DETERMINING STRUCTURES IN A BODY

Info

Publication number
SE8104960L
SE8104960L SE8104960A SE8104960A SE8104960L SE 8104960 L SE8104960 L SE 8104960L SE 8104960 A SE8104960 A SE 8104960A SE 8104960 A SE8104960 A SE 8104960A SE 8104960 L SE8104960 L SE 8104960L
Authority
SE
Sweden
Prior art keywords
quotients
fed
computer
electron density
diagnostic device
Prior art date
Application number
SE8104960A
Other languages
Swedish (sv)
Inventor
G Harding
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 SE8104960L publication Critical patent/SE8104960L/en

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
    • A61B6/48—Diagnostic techniques
    • A61B6/483—Diagnostic techniques involving scattered 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
    • A61B6/02—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
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4241—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using energy resolving detectors, e.g. photon counting
    • 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
    • A61B6/48—Diagnostic techniques
    • A61B6/482—Diagnostic techniques involving multiple energy imaging
    • 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
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (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)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Toxicology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Measurement Of Radiation (AREA)
  • Nuclear Medicine (AREA)

Abstract

In Compton scatter apparatus for determining the distribution of local electron density in a body, a source 1 which provides three photon energies E1, E2, E3, directs a pencil beam 3 through the body 5. Radiation 6, 6', scattered from respective elements P along the beam, passes via a transverse slit 8, 8', and is detected by corresponding detectors 10, 10'. Each detector output is fed to three window circuits and corresponding element scatter signals for each energy S(E1). S(E2), S(E3), are fed to a computer. The improvement comprises initially carrying out similar measurements on a reference phantom resembling the body, storing the corresponding reference scatter signals V(E1), V(E2), V(E3), in a store and causing the computer to generate the quotients S(E1)/V(E1) ...etc., for each photon energy. The local electron density is then computed from these quotients using known data relating to the reference phantom. <IMAGE>
SE8104960A 1980-08-25 1981-08-21 DIAGNOSTIC DEVICE USING THE COMPTON EFFECT FOR DETERMINING STRUCTURES IN A BODY SE8104960L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803031949 DE3031949A1 (en) 1980-08-25 1980-08-25 SCREEN EXAMINATION ARRANGEMENT FOR DETERMINING THE INNER STRUCTURE OF A BODY

Publications (1)

Publication Number Publication Date
SE8104960L true SE8104960L (en) 1982-02-26

Family

ID=6110312

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8104960A SE8104960L (en) 1980-08-25 1981-08-21 DIAGNOSTIC DEVICE USING THE COMPTON EFFECT FOR DETERMINING STRUCTURES IN A BODY

Country Status (6)

Country Link
JP (1) JPS5772049A (en)
CA (1) CA1164580A (en)
DE (1) DE3031949A1 (en)
FR (1) FR2488995B1 (en)
GB (1) GB2082873B (en)
SE (1) SE8104960L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0640077B2 (en) * 1983-10-12 1994-05-25 松下電器産業株式会社 Radiation image receiving method
FR2565022A1 (en) * 1984-05-23 1985-11-29 Ephrati James Device for multipoint emission of penetrating radiation
CA1280224C (en) * 1987-08-27 1991-02-12 Daniel Gagnon Method and circuit for processing narrow band signals located in a wide band having disturbance
US5933473A (en) * 1996-04-04 1999-08-03 Hitachi, Ltd. Non-destructive inspection apparatus and inspection system using it
US8837677B2 (en) 2007-04-11 2014-09-16 The Invention Science Fund I Llc Method and system for compton scattered X-ray depth visualization, imaging, or information provider
JP6299033B2 (en) * 2014-05-12 2018-03-28 一般財団法人電力中央研究所 Nondestructive inspection method and apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974386A (en) * 1974-07-12 1976-08-10 Wisconsin Alumni Research Foundation Differential X-ray method and apparatus
DE2544354A1 (en) * 1975-10-03 1977-04-14 Siemens Ag METHOD OF DETERMINING THE DENSITY OF BODIES BY MEANS OF PENETRATING RAYS AND EQUIPMENT FOR ITS IMPLEMENTATION
DE2713581C2 (en) * 1977-03-28 1983-04-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Arrangement for the representation of a plane of a body with gamma or X-rays
DE2944147A1 (en) * 1979-11-02 1981-05-14 Philips Patentverwaltung Gmbh, 2000 Hamburg ARRANGEMENT FOR DETERMINING THE SPREAD DENSITY DISTRIBUTION IN A LEVEL EXAMINATION AREA
DE3023263C2 (en) * 1980-06-21 1986-08-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Arrangement for determining the internal structure of a body by means of monoenergetic radiation

Also Published As

Publication number Publication date
FR2488995B1 (en) 1985-06-14
JPS5772049A (en) 1982-05-06
CA1164580A (en) 1984-03-27
FR2488995A1 (en) 1982-02-26
GB2082873A (en) 1982-03-10
DE3031949A1 (en) 1982-04-01
GB2082873B (en) 1984-03-14

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