GB339215A - Improved method and apparatus for use in making x-ray photographs - Google Patents

Improved method and apparatus for use in making x-ray photographs

Info

Publication number
GB339215A
GB339215A GB767430A GB767430A GB339215A GB 339215 A GB339215 A GB 339215A GB 767430 A GB767430 A GB 767430A GB 767430 A GB767430 A GB 767430A GB 339215 A GB339215 A GB 339215A
Authority
GB
United Kingdom
Prior art keywords
cell
plate
rays
exposure
behind
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
GB767430A
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.)
CHF Mueller AG
Original Assignee
CHF Mueller AG
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 CHF Mueller AG filed Critical CHF Mueller AG
Publication of GB339215A publication Critical patent/GB339215A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/02—Dosimeters
    • G01T1/14—Electrostatic dosimeters
    • 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
    • H05G1/28—Measuring or recording actual exposure time; Counting number of exposures; Measuring required exposure time

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

339,215. M³ller Akt.-Ges., C. H. F. March 9, 1929, [Convention date]. R÷ntgen-ray apparatus. - For controlling the exposures in X-ray photography a raysensitive cell connected to a device for indicating its charge is arranged on the opposite side of the object being photographed to the source of X-rays. The exposure is given for the time required for the indicating device to reach the value at which the photographic plate exhibits the optimum ground blackening and which is constant for the type of plate used. Where several objects of different permeability to the rays are to be photographed together, a cell of sufficient size to be simultaneously affected by rays traversing each of the objects is used, or the cell may be moved during the exposure. A cassette incorporating a cell for use in the process comprises a frame 30 covered in front by a sheet of aluminium 31 behind which are placed reinforcing foils 32 enclosing the sensitive film 33. A lead plate 36, having a window 38 behind which is a shell 41 of material opaque to the rays, containing the cell 4a, is fitted in the back of the frame 30. In a modification, the shell 41 is mounted on a lead slide moving in a groove in the plate 36. The cell mav also be used to determine the time of exposure, and be replaced by the plate during the exposure itself.
GB767430A 1929-03-08 1930-03-08 Improved method and apparatus for use in making x-ray photographs Expired GB339215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM109149D DE574441C (en) 1929-03-08 1929-03-08 Method and device for the production of radiographic recordings

Publications (1)

Publication Number Publication Date
GB339215A true GB339215A (en) 1930-12-04

Family

ID=7326629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB767430A Expired GB339215A (en) 1929-03-08 1930-03-08 Improved method and apparatus for use in making x-ray photographs

Country Status (5)

Country Link
BE (1) BE368412A (en)
CH (1) CH150451A (en)
DE (1) DE574441C (en)
GB (1) GB339215A (en)
NL (1) NL29448C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969847C (en) * 1952-10-15 1958-07-24 Siemens Reiniger Werke Ag Device for the production of X-ray images
DE1051420B (en) * 1953-03-23 1959-02-26 Koch & Sterzel Kommanditgesell Device for the automatic determination of the exposure time of X-ray images
DE102014219434A1 (en) * 2014-09-25 2016-03-31 Siemens Aktiengesellschaft Device and method for a diagnostic device

Also Published As

Publication number Publication date
CH150451A (en) 1931-10-31
BE368412A (en) 1930-04-30
NL29448C (en) 1933-04-15
DE574441C (en) 1933-04-22

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