GB1475303A - Apparatus for examining a body by means of penetrating radiation - Google Patents

Apparatus for examining a body by means of penetrating radiation

Info

Publication number
GB1475303A
GB1475303A GB2681173A GB2681173A GB1475303A GB 1475303 A GB1475303 A GB 1475303A GB 2681173 A GB2681173 A GB 2681173A GB 2681173 A GB2681173 A GB 2681173A GB 1475303 A GB1475303 A GB 1475303A
Authority
GB
United Kingdom
Prior art keywords
mass
radiation
source
attenuating
halves
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
GB2681173A
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.)
EMI Ltd
Original Assignee
EMI 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
Priority to CH307063D priority Critical patent/CH307063A/en
Application filed by EMI Ltd filed Critical EMI Ltd
Priority to GB2681173A priority patent/GB1475303A/en
Priority to FR7418993A priority patent/FR2232294B1/fr
Priority to CA201,517A priority patent/CA1007384A/en
Priority to US05/476,300 priority patent/US3937963A/en
Priority to DE19742427418 priority patent/DE2427418C3/en
Priority to NLAANVRAGE7407578,A priority patent/NL180474C/en
Priority to JP49063812A priority patent/JPS608821B2/en
Priority to DE19742462661 priority patent/DE2462661C2/en
Publication of GB1475303A publication Critical patent/GB1475303A/en
Priority to JP11866679A priority patent/JPS5589736A/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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

1475303 Radiography EMI Ltd 29 May 1974 [5 June 1973 13 Dec 1973 14 Feb 1974] 26811/73 57715/73 and 6809/74 Headings H4F and H5R In a radiological examination apparatus in which a slice of a body is traversed by a fanshaped spread or a scanned beam of X or gamma radiation, the absorbed rays being measured and used to construct a representation of the absorption over the slice and the source and detecting means being arranged to orbit the body to irradiate it from different directions, there is provided a radiation attenuating mass which rotates with the source and the detecting means and so presents a substantially constant profile to the radiation whatever the source position, the purpose of the mass being to compensate for different radiation path lengths in the body. The attenuating mass can take various forms, e.g. a Perspex (Registered Trade Mark) sectoral sheet with the source at the apex and the radiation directed in the plane of the sheet which has cut-out portions to partially or completely enclose the object position Figs. 1 to 3 (not shown). In another form, Figs. 9 and 10 (not shown) the mass is in two halves each of which is a rectangular block with a circular segment removed the two halves being clamped around the object which is held in the two segments. Figs. 11 to 14 (not shown) show the attenuating masses as blocks arranged in the incident beam and having cylindrical cavities or circular segmental depressions on the outer faces, a mechanism being provided to allow for possible non-coincidence of the axis of scanning rotation and the axis of the object. The attenuating mass can be solid or liquid.
GB2681173A 1952-08-09 1973-06-05 Apparatus for examining a body by means of penetrating radiation Expired GB1475303A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CH307063D CH307063A (en) 1952-08-09 1952-08-09 Machine for the production of floor panels composed of small parquet strips, in which the strips are held together by means of glued-on paper.
GB2681173A GB1475303A (en) 1973-06-05 1973-06-05 Apparatus for examining a body by means of penetrating radiation
FR7418993A FR2232294B1 (en) 1973-06-05 1974-05-31
CA201,517A CA1007384A (en) 1973-06-05 1974-06-03 Radiographic apparatus
US05/476,300 US3937963A (en) 1973-06-05 1974-06-04 Radiographic apparatus
DE19742427418 DE2427418C3 (en) 1973-06-05 1974-06-05 Device for examining a part of the body using penetrating radiation
NLAANVRAGE7407578,A NL180474C (en) 1952-08-09 1974-06-05 RADIO CONTROLLER.
JP49063812A JPS608821B2 (en) 1973-06-05 1974-06-05 Medical radiation testing equipment
DE19742462661 DE2462661C2 (en) 1973-06-05 1974-06-05 Computer tomograph
JP11866679A JPS5589736A (en) 1973-06-05 1979-09-13 Object checker using transmissive radioactive beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2681173A GB1475303A (en) 1973-06-05 1973-06-05 Apparatus for examining a body by means of penetrating radiation

Publications (1)

Publication Number Publication Date
GB1475303A true GB1475303A (en) 1977-06-01

Family

ID=10249610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2681173A Expired GB1475303A (en) 1952-08-09 1973-06-05 Apparatus for examining a body by means of penetrating radiation

Country Status (2)

Country Link
JP (1) JPS5589736A (en)
GB (1) GB1475303A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317835A1 (en) * 1993-05-28 1994-12-01 Eurocopter Deutschland Computer tomograph

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151943A (en) * 1983-02-18 1984-08-30 理学電機株式会社 Tomography scanning apparatus
JPS59221643A (en) * 1983-05-31 1984-12-13 Toshiba Corp Inspecting method of ceramic product
JPS60181640A (en) * 1984-02-29 1985-09-17 Nippon Steel Corp Radiation tomography for industrial use
JP5425008B2 (en) * 2010-07-20 2014-02-26 富士フイルム株式会社 Radiographic imaging device and compression plate
KR101483006B1 (en) * 2014-07-28 2015-01-15 나우 주식회사 Radiation source devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317835A1 (en) * 1993-05-28 1994-12-01 Eurocopter Deutschland Computer tomograph

Also Published As

Publication number Publication date
JPS6146137B2 (en) 1986-10-13
JPS5589736A (en) 1980-07-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19940528