JPS5648097A - X-ray diagnostic apparatus - Google Patents
X-ray diagnostic apparatusInfo
- Publication number
- JPS5648097A JPS5648097A JP12206379A JP12206379A JPS5648097A JP S5648097 A JPS5648097 A JP S5648097A JP 12206379 A JP12206379 A JP 12206379A JP 12206379 A JP12206379 A JP 12206379A JP S5648097 A JPS5648097 A JP S5648097A
- Authority
- JP
- Japan
- Prior art keywords
- ray
- output
- time
- optimum exposure
- ray radiation
- 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.)
- Granted
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
PURPOSE:To reduce exposure rate as well as to shorten photographic condition setting time by automatically setting the tube current value in response to the optimum exposure by only one time preliminary radiation. CONSTITUTION:X-rays are radiated through an X-ray tube 1 by X-ray radiation starting signals, the X-rays are detected through a subject 2 by detector 3, the detected current is integrated by an integrator, this integrated value is compared with the output from an optimum exposure setter 5, when the both come to be consistent with each other, X-ray radiateion stop signals are output through a comparator 6 to stop the X-ray radiation. The hour from the X-ray radiation starting time until the time to invert the output through the comparator becomes the radiating hour to obtain the optimum exposure, which can be obtained by a counter 9. The outputs are supplied as control signals in a filament heating circuit 15 throuth a counter 14, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12206379A JPS5648097A (en) | 1979-09-25 | 1979-09-25 | X-ray diagnostic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12206379A JPS5648097A (en) | 1979-09-25 | 1979-09-25 | X-ray diagnostic apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5648097A true JPS5648097A (en) | 1981-05-01 |
JPS637438B2 JPS637438B2 (en) | 1988-02-16 |
Family
ID=14826700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12206379A Granted JPS5648097A (en) | 1979-09-25 | 1979-09-25 | X-ray diagnostic apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5648097A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59174023A (en) * | 1983-03-24 | 1984-10-02 | Toshiba Corp | Very large scale integrated circuit |
JPS6090538A (en) * | 1983-09-13 | 1985-05-21 | エヌ・ベー・オプテイツシエ・インダストリエ・“デ・オー デ・デルフト” | Slit scanning radiation photographing apparatus and method |
JPS61114500A (en) * | 1984-11-07 | 1986-06-02 | Hitachi Medical Corp | Digital x-ray photographing device |
-
1979
- 1979-09-25 JP JP12206379A patent/JPS5648097A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59174023A (en) * | 1983-03-24 | 1984-10-02 | Toshiba Corp | Very large scale integrated circuit |
JPS6090538A (en) * | 1983-09-13 | 1985-05-21 | エヌ・ベー・オプテイツシエ・インダストリエ・“デ・オー デ・デルフト” | Slit scanning radiation photographing apparatus and method |
JPH057019B2 (en) * | 1983-09-13 | 1993-01-27 | Oputeitsushe Ind De Ode Derufuto Bv | |
JPS61114500A (en) * | 1984-11-07 | 1986-06-02 | Hitachi Medical Corp | Digital x-ray photographing device |
Also Published As
Publication number | Publication date |
---|---|
JPS637438B2 (en) | 1988-02-16 |
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