GB1579694A - Measuring radiation absorption - Google Patents

Measuring radiation absorption Download PDF

Info

Publication number
GB1579694A
GB1579694A GB9458/77A GB945877A GB1579694A GB 1579694 A GB1579694 A GB 1579694A GB 9458/77 A GB9458/77 A GB 9458/77A GB 945877 A GB945877 A GB 945877A GB 1579694 A GB1579694 A GB 1579694A
Authority
GB
United Kingdom
Prior art keywords
radiation
source
parts
centre
region
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
GB9458/77A
Other languages
English (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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1579694A publication Critical patent/GB1579694A/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
    • A61B6/02—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
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Public Health (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Measurement Of Radiation (AREA)
GB9458/77A 1976-03-10 1977-03-07 Measuring radiation absorption Expired GB1579694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2609925A DE2609925C2 (de) 1976-03-10 1976-03-10 Anordnung zur Ermittlung der Verteilung der Absorption eines Körpers

Publications (1)

Publication Number Publication Date
GB1579694A true GB1579694A (en) 1980-11-19

Family

ID=5972020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9458/77A Expired GB1579694A (en) 1976-03-10 1977-03-07 Measuring radiation absorption

Country Status (8)

Country Link
JP (1) JPS52110582A (de)
CA (1) CA1072688A (de)
DE (1) DE2609925C2 (de)
FR (1) FR2344032A1 (de)
GB (1) GB1579694A (de)
IL (1) IL51613A (de)
NL (1) NL7702394A (de)
SE (1) SE7702484L (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005739A1 (en) * 1986-03-17 1987-09-24 Eastman Kodak Company Compensation filter for radiography
GB2298556A (en) * 1995-03-01 1996-09-04 St George's Healthcare Nhs Trust X-ray beam attenuator
EP1008325A1 (de) * 1997-03-12 2000-06-14 Hitachi Medical Corporation Rechnergestützter röntgen-tomograph mit kollimator zur begrenzung des bereichs eines fächerförmigen bestrahlungs bündels
DE10141346A1 (de) * 2001-08-23 2003-06-26 Siemens Ag Verfahren zur Aufnahme von Messdaten mit einem Computertormographen

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132895A (en) * 1976-08-28 1979-01-02 Emi Limited Radiography
FI54856C (fi) * 1976-12-17 1979-04-10 Palomex Oy Anordning vid roentgenanledning
JPS5451496A (en) * 1977-09-30 1979-04-23 Shimadzu Corp Computer tomograph
DE2756659A1 (de) * 1977-12-19 1979-06-21 Philips Patentverwaltung Anordnung zur bestimmung der absorptionsverteilung
FR2431853A1 (fr) * 1978-07-27 1980-02-22 Radiologie Cie Gle Procede de centrage automatique d'un objet a examiner dans un tomodensitometre a faisceau en eventail et tomodensitometre adapte a ce procede
DE2920051C2 (de) * 1979-05-18 1984-04-19 Philips Patentverwaltung Gmbh, 2000 Hamburg Röntgengerät zur Ermittlung der Absorptionsverteilung in einem ebenen Untersuchungsbereich
DE2924423A1 (de) * 1979-06-16 1980-12-18 Philips Patentverwaltung Verfahren zur ermittlung der raeumlichen verteilung der absorption von strahlung in einem ebenen bereich
DE2928825A1 (de) * 1979-07-17 1981-02-12 Siemens Ag Schichtaufnahmegeraet zur herstellung von transversalschichtbildern
JPS5675144A (en) * 1979-11-27 1981-06-22 Tokyo Shibaura Electric Co Radiation iris device
NL8006304A (nl) * 1980-11-19 1982-06-16 Philips Nv Werkwijze en inrichting voor het bepalen van de verdeling van stralingsabsorptie in een vlak van een lichaam.
FR2705222B1 (fr) * 1993-05-18 1995-08-11 Ge Medical Syst Sa Dispositif de conformation de champ asservi à la position angulaire du faisceau d'un système d'imagerie à rayons X.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484604A (en) * 1967-10-17 1969-12-16 Tokyo Shibaura Electric Co Axial transverse tomography wherein the angle of spread of radiation is controlled
DE1800879C3 (de) * 1968-10-03 1974-01-10 Siemens Ag, 1000 Berlin U. 8000 Muenchen Primärstrahlenblende für Röntgenuntersuchungsgeräte
FR2232294B1 (de) * 1973-06-05 1978-01-13 Emi Ltd
JPS5514652B2 (de) * 1973-08-18 1980-04-17
GB1478123A (en) * 1973-08-18 1977-06-29 Emi Ltd Tomography
CH568769A5 (de) * 1973-09-26 1975-11-14 Hauenstein Walter
US3965353A (en) * 1974-12-06 1976-06-22 Albert Macovski Cross-sectional X-ray emission imaging system
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005739A1 (en) * 1986-03-17 1987-09-24 Eastman Kodak Company Compensation filter for radiography
GB2298556A (en) * 1995-03-01 1996-09-04 St George's Healthcare Nhs Trust X-ray beam attenuator
EP1008325A1 (de) * 1997-03-12 2000-06-14 Hitachi Medical Corporation Rechnergestützter röntgen-tomograph mit kollimator zur begrenzung des bereichs eines fächerförmigen bestrahlungs bündels
EP1008325B1 (de) * 1997-03-12 2004-10-06 Hitachi Medical Corporation Rechnergestützter röntgen-tomograph mit kollimator zur begrenzung des bereichs eines fächerförmigen bestrahlungs bündels
DE10141346A1 (de) * 2001-08-23 2003-06-26 Siemens Ag Verfahren zur Aufnahme von Messdaten mit einem Computertormographen

Also Published As

Publication number Publication date
CA1072688A (en) 1980-02-26
NL7702394A (nl) 1977-09-13
IL51613A (en) 1979-09-30
JPS52110582A (en) 1977-09-16
DE2609925C2 (de) 1982-06-09
FR2344032B1 (de) 1982-05-14
FR2344032A1 (fr) 1977-10-07
SE7702484L (sv) 1977-09-11
IL51613A0 (en) 1977-05-31
DE2609925A1 (de) 1977-09-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee