GB569547A - Improvements in and relating to x-ray apparatus - Google Patents
Improvements in and relating to x-ray apparatusInfo
- Publication number
- GB569547A GB569547A GB1800243A GB1800243A GB569547A GB 569547 A GB569547 A GB 569547A GB 1800243 A GB1800243 A GB 1800243A GB 1800243 A GB1800243 A GB 1800243A GB 569547 A GB569547 A GB 569547A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- tube
- effected
- operated
- anode
- 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
- H05G1/26—Measuring, controlling or protecting
- H05G1/54—Protecting or lifetime prediction
Abstract
569,547. Supply systems for X-ray apparatus. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). Nov. 1, 1943, No. 18002. [Class 38 (iv)] [Also in Group XL] The anode 13 of an X-ray generator 17 is heated electrically for an interval after the tube has been producing X-rays for a short limited exposure interval in order to retard cooling of the anode to prevent it cracking. The tube 17 is provided with current by a transformer 21 through rectifiers 19. The transformer 21 is connected to an autotransformer 31 across the mains 33 by a switch 29. The latter is operated by a solenoid 35 controlled by a time switch 39 and operating switch 41. The anode heating may be effected by an inserted heating element, but preferably as shown is effected by operating the tube at a potential too low to generate X-rays. This is effected by a switch 43 which connects transformer 21 to the autotransformer 31 through a resistance 45. Switch 43 is operated by a solenoid 47 controlled by a time delay switch 51. This latter requires a longer period to open than switch 39 and thus the tube is operated for a fixed period at a lower voltage after the period of full operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1800243A GB569547A (en) | 1943-11-01 | 1943-11-01 | Improvements in and relating to x-ray apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1800243A GB569547A (en) | 1943-11-01 | 1943-11-01 | Improvements in and relating to x-ray apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB569547A true GB569547A (en) | 1945-05-29 |
Family
ID=10104921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1800243A Expired GB569547A (en) | 1943-11-01 | 1943-11-01 | Improvements in and relating to x-ray apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB569547A (en) |
-
1943
- 1943-11-01 GB GB1800243A patent/GB569547A/en not_active Expired
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