GB1247072A - Improvements relating to x-ray diagnostic apparatus - Google Patents
Improvements relating to x-ray diagnostic apparatusInfo
- Publication number
- GB1247072A GB1247072A GB3784369A GB3784369A GB1247072A GB 1247072 A GB1247072 A GB 1247072A GB 3784369 A GB3784369 A GB 3784369A GB 3784369 A GB3784369 A GB 3784369A GB 1247072 A GB1247072 A GB 1247072A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- tubes
- voltage
- conductive
- control
- 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
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
- H05G1/60—Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography
Landscapes
- X-Ray Techniques (AREA)
Abstract
1,247,072. X-ray apparatus. SIEMENS A.G. 28 July, 1969 [27 July, 1968], No. 37843/69. Heading H2H. An X-ray apparatus having a plurality of grid-controlled tubes parallel connected to a common high-voltage source has a control means operated by individual exposure devices to cause a desired voltage to be applied for a selected time to the respective tube and to disable other tubes while one tube is conductive. The tubes 1, 2 may be activated alternately for cinematograph operation and interlocked with film changers 16, 17. With film changer 16, for example, in exposure condition a contact 18 will be closed and on depression of a button 14 on panel 9 a negative voltage previously applied to tubes 3, 4 is removed which tubes become conductive for a period determined by a control 11. Tube 1 is then rendered conductive for a period adjusted by a control 12 which period extends beyond that during which the controlled rectifiers 3, 4 remain conductive in order that the highvoltage supply a, b which rises to a no-load value will not be applied to a still heated X-ray tube. On completion of the exposure contacts 18 are opened and 19 are closed and a similar sequence operates with respect to tube 2 except that contacts 20, 21 selecting tube voltage are changed over to an alternative position on to taps 26, 27 adjusted by a control 10<SP>1</SP> which taps adjust the conductivity of the rectifiers 3, 4 and hence the voltage applied to a tube. Operation of the film changers 16, 17 are effected by known means (not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681764736 DE1764736A1 (en) | 1968-07-27 | 1968-07-27 | X-ray diagnostic facility for multilevel seriography |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1247072A true GB1247072A (en) | 1971-09-22 |
Family
ID=5698104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3784369A Expired GB1247072A (en) | 1968-07-27 | 1969-07-28 | Improvements relating to x-ray diagnostic apparatus |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1764736A1 (en) |
FR (1) | FR2013871A1 (en) |
GB (1) | GB1247072A (en) |
-
1968
- 1968-07-27 DE DE19681764736 patent/DE1764736A1/en active Pending
-
1969
- 1969-07-25 FR FR6925541A patent/FR2013871A1/fr not_active Withdrawn
- 1969-07-28 GB GB3784369A patent/GB1247072A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1764736A1 (en) | 1971-10-14 |
FR2013871A1 (en) | 1970-04-10 |
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