JPS5636899A - X-ray device - Google Patents

X-ray device

Info

Publication number
JPS5636899A
JPS5636899A JP11171879A JP11171879A JPS5636899A JP S5636899 A JPS5636899 A JP S5636899A JP 11171879 A JP11171879 A JP 11171879A JP 11171879 A JP11171879 A JP 11171879A JP S5636899 A JPS5636899 A JP S5636899A
Authority
JP
Japan
Prior art keywords
inverter transformer
ray
irradiation
circuit
discharge
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.)
Pending
Application number
JP11171879A
Other languages
Japanese (ja)
Inventor
Teruaki Osako
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11171879A priority Critical patent/JPS5636899A/en
Publication of JPS5636899A publication Critical patent/JPS5636899A/en
Pending 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

Abstract

PURPOSE:To both reduce a quantity of irradiation beams of an X-ray device for the patient and improve the operational accuracy of its automatic exposure control mechanism, by providing a discharge circuit at the primary side of an inverter transformer and actuating said discharge circuit at a completion of irradiation of the X-ray. CONSTITUTION:A rectifier circuit 18 and an X-ray tube 19 are connected in series, instead the rectifier circuit 18 and the secondary side of an inverter transformer 16 are connected through a shield cable 17. While a voltage is fed to the inverter transformer 16 from a bridge inverter circuit, and to discharge the electric charge of an electrostatic capacity 17' in the shield cable 17, a discharge circuit, constituted by a resistor 14 and triac (triode AC switch) 15 connected in parallel to a primary winding of the inverter transformer, is provided at the primary side of the inverter transformer 16, and said triac 15 is fired at a completion of irradiation of the X-ray. In this way, a quantity of irradiation beams for the patient can be reduced and the operational accuracy of an automatic exposure control mechanism can be improved.
JP11171879A 1979-09-03 1979-09-03 X-ray device Pending JPS5636899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11171879A JPS5636899A (en) 1979-09-03 1979-09-03 X-ray device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11171879A JPS5636899A (en) 1979-09-03 1979-09-03 X-ray device

Publications (1)

Publication Number Publication Date
JPS5636899A true JPS5636899A (en) 1981-04-10

Family

ID=14568397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11171879A Pending JPS5636899A (en) 1979-09-03 1979-09-03 X-ray device

Country Status (1)

Country Link
JP (1) JPS5636899A (en)

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