GB632842A - Improvements in apparatus for timing an x-ray exposure - Google Patents

Improvements in apparatus for timing an x-ray exposure

Info

Publication number
GB632842A
GB632842A GB2627047A GB2627047A GB632842A GB 632842 A GB632842 A GB 632842A GB 2627047 A GB2627047 A GB 2627047A GB 2627047 A GB2627047 A GB 2627047A GB 632842 A GB632842 A GB 632842A
Authority
GB
United Kingdom
Prior art keywords
timing
ray exposure
photo
cathode
tube
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
GB2627047A
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.)
ALLTOOLS Ltd
Original Assignee
ALLTOOLS 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 ALLTOOLS Ltd filed Critical ALLTOOLS Ltd
Priority to GB2627047A priority Critical patent/GB632842A/en
Publication of GB632842A publication Critical patent/GB632842A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05G1/30—Controlling
    • H05G1/38—Exposure time
    • H05G1/42—Exposure time using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube
    • H05G1/44—Exposure time using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube in which the switching instant is determined by measuring the amount of radiation directly

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)

Abstract

632,842. Photo-electric cells. GRAVES, A., DAWES, T. J., and ALLTOOLS, Ltd. Sept. 29, 1947, No. 26270. [Class 39 (i)] [Also in Group XL (b)] A photo-cell for timing an X-ray exposure consists of a glass envelope 40 surrounded by a layer 8 of fluorescent material activated by the X-rays. The anode consists of a control electrode 41 and the cathode of a layer of antimony-caesium on the inner wall of the tube. The cathode 43 is sealed in one end of the tube and the anode lead 44 in the other. Specification 593,764 is referred to.
GB2627047A 1947-09-29 1947-09-29 Improvements in apparatus for timing an x-ray exposure Expired GB632842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2627047A GB632842A (en) 1947-09-29 1947-09-29 Improvements in apparatus for timing an x-ray exposure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2627047A GB632842A (en) 1947-09-29 1947-09-29 Improvements in apparatus for timing an x-ray exposure

Publications (1)

Publication Number Publication Date
GB632842A true GB632842A (en) 1949-12-05

Family

ID=10241004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2627047A Expired GB632842A (en) 1947-09-29 1947-09-29 Improvements in apparatus for timing an x-ray exposure

Country Status (1)

Country Link
GB (1) GB632842A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE965435C (en) * 1953-06-16 1957-06-06 Philips Nv Device for automatically ending the duration of an X-ray exposure
US2810078A (en) * 1957-10-15 Photo timer
DE1279218B (en) * 1954-12-21 1968-10-03 Picker Corp Automatic exposure control for an X-ray apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810078A (en) * 1957-10-15 Photo timer
DE965435C (en) * 1953-06-16 1957-06-06 Philips Nv Device for automatically ending the duration of an X-ray exposure
US2829273A (en) * 1953-06-16 1958-04-01 Philips Corp Device for automatically terminating x-ray exposures
DE1279218B (en) * 1954-12-21 1968-10-03 Picker Corp Automatic exposure control for an X-ray apparatus

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