FR2005759A1 - Automatic determination of exposure time for a - radiograph - Google Patents

Automatic determination of exposure time for a - radiograph

Info

Publication number
FR2005759A1
FR2005759A1 FR6910501A FR6910501A FR2005759A1 FR 2005759 A1 FR2005759 A1 FR 2005759A1 FR 6910501 A FR6910501 A FR 6910501A FR 6910501 A FR6910501 A FR 6910501A FR 2005759 A1 FR2005759 A1 FR 2005759A1
Authority
FR
France
Prior art keywords
impulses
signal
radiograph
exposure time
rays
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.)
Withdrawn
Application number
FR6910501A
Other languages
French (fr)
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.)
Saab AB
Original Assignee
Saab AB
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 Saab AB filed Critical Saab AB
Publication of FR2005759A1 publication Critical patent/FR2005759A1/en
Withdrawn legal-status Critical Current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

Abstract

Equipment comprising an X-ray sensitive transducer interposed or trajectory of rays behind body studied and set to finish a signal corresponding to intensity of radiation striking (1) transducer and an explosive meter subject to action of signal emitted by (1) and set to interrupt the X-rays emission at end of exposure period. Explosive meter can convert (1) signal into a number of impulses (dependent as signal amplitude) equal to greater than a number of impulses corresponding to quantum of radiation detected, together with means to count consecutive impulses and interrupt X-rays emission after counting number of impulses detected.
FR6910501A 1968-04-08 1969-04-04 Automatic determination of exposure time for a - radiograph Withdrawn FR2005759A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE468368 1968-04-08

Publications (1)

Publication Number Publication Date
FR2005759A1 true FR2005759A1 (en) 1969-12-19

Family

ID=20264739

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6910501A Withdrawn FR2005759A1 (en) 1968-04-08 1969-04-04 Automatic determination of exposure time for a - radiograph

Country Status (3)

Country Link
BE (1) BE730939A (en)
DE (1) DE1916321A1 (en)
FR (1) FR2005759A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825323C2 (en) * 1978-06-09 1986-03-06 Philips Patentverwaltung Gmbh, 2000 Hamburg Automatic exposure device for an X-ray generator
FR2595561A1 (en) * 1986-03-14 1987-09-18 Thomson Cgr Radiology installation with a detector, in particular a photomultiplier, for monitoring images
DE3621803A1 (en) * 1986-06-28 1988-01-07 Philips Patentverwaltung X-RAY GENERATOR

Also Published As

Publication number Publication date
DE1916321A1 (en) 1969-10-30
BE730939A (en) 1969-09-15

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Legal Events

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