GB191082A - Shield for radiography and radioscopy - Google Patents

Shield for radiography and radioscopy

Info

Publication number
GB191082A
GB191082A GB89/23A GB8923A GB191082A GB 191082 A GB191082 A GB 191082A GB 89/23 A GB89/23 A GB 89/23A GB 8923 A GB8923 A GB 8923A GB 191082 A GB191082 A GB 191082A
Authority
GB
United Kingdom
Prior art keywords
strips
radioscopy
radiography
shield
centre
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
GB89/23A
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.)
AKE OLOF AKERLUND
Original Assignee
AKE OLOF AKERLUND
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 AKE OLOF AKERLUND filed Critical AKE OLOF AKERLUND
Publication of GB191082A publication Critical patent/GB191082A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

191,082. Akerlund, A. O. Jan. 2, 1922, [Convention date]. R÷ntgen-ray apparatus.-A rotary screen for radiography or radioscopy, adapted to be placed between the object and the fluorescent screen or sensitive plate, for the purpose of intercepting secondary rays, is characterized by the provision of a series of non-intersecting spiral strips a, b, c, d of lead other material impervious to X-rays radiating in a common plane from the centre to the periphery of the shield, the faces of the strips being at all points parallel to radial lines from the X-ray source f. The strips are uniformly arranged around the centre, and the pitch of the spiral form is preferably great.
GB89/23A 1922-01-02 1923-01-01 Shield for radiography and radioscopy Expired GB191082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE191082X 1922-01-02

Publications (1)

Publication Number Publication Date
GB191082A true GB191082A (en) 1923-10-25

Family

ID=20304608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB89/23A Expired GB191082A (en) 1922-01-02 1923-01-01 Shield for radiography and radioscopy

Country Status (1)

Country Link
GB (1) GB191082A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3469988A1 (en) * 2017-10-11 2019-04-17 Ion Beam Applications S.A. Apparatus and methods for imaging an object by cone beam tomography

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3469988A1 (en) * 2017-10-11 2019-04-17 Ion Beam Applications S.A. Apparatus and methods for imaging an object by cone beam tomography

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