JPS55124998A - X-ray tube filament heater - Google Patents
X-ray tube filament heaterInfo
- Publication number
- JPS55124998A JPS55124998A JP3224679A JP3224679A JPS55124998A JP S55124998 A JPS55124998 A JP S55124998A JP 3224679 A JP3224679 A JP 3224679A JP 3224679 A JP3224679 A JP 3224679A JP S55124998 A JPS55124998 A JP S55124998A
- Authority
- JP
- Japan
- Prior art keywords
- filament
- tube current
- time
- control circuit
- initial
- 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
- H05G1/34—Anode current, heater current or heater voltage of X-ray tube
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- X-Ray Techniques (AREA)
Abstract
PURPOSE:To save a length of the time till a heating condition of the filament reaches a steady state, by providing an initial heating operation control circuit that generates a pulse voltage for a predetermined length of period from the time of starting a heating operation of the filament. CONSTITUTION:The heater comprises a tube current selector 1 to switch a tube current in accordance with a selection of the dial position, a tube current signal generating unit2, a power unit 3 of the switching regulator DC stabilized power source system, a filament transformer 4 and an X-ray 5. In addition to the above, an initial heating control circuit 14 is provided. The initial heating control circuit 14 starts generating a pulse voltage since the time of starting a heating operation of the filament for a predetermined length of period and adding it to an output of the tube current signal generating unit 2. In this way, the initial level of a voltage applied to the filament transformer 4 comes to be higher than the specified level, thus shortening a length of the time reguired until a heating condition of the filament reaches the constant state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3224679A JPS6019639B2 (en) | 1979-03-22 | 1979-03-22 | X-ray tube filament heating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3224679A JPS6019639B2 (en) | 1979-03-22 | 1979-03-22 | X-ray tube filament heating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55124998A true JPS55124998A (en) | 1980-09-26 |
JPS6019639B2 JPS6019639B2 (en) | 1985-05-17 |
Family
ID=12353637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3224679A Expired JPS6019639B2 (en) | 1979-03-22 | 1979-03-22 | X-ray tube filament heating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6019639B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57202698A (en) * | 1981-06-08 | 1982-12-11 | Hitachi Medical Corp | Electrical current supply device for x-ray emitting filament |
JPS6356599U (en) * | 1986-09-30 | 1988-04-15 |
-
1979
- 1979-03-22 JP JP3224679A patent/JPS6019639B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57202698A (en) * | 1981-06-08 | 1982-12-11 | Hitachi Medical Corp | Electrical current supply device for x-ray emitting filament |
JPH0155560B2 (en) * | 1981-06-08 | 1989-11-24 | Hitachi Medical Corp | |
JPS6356599U (en) * | 1986-09-30 | 1988-04-15 | ||
JPH0542640Y2 (en) * | 1986-09-30 | 1993-10-27 |
Also Published As
Publication number | Publication date |
---|---|
JPS6019639B2 (en) | 1985-05-17 |
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