GB582889A - Improvements in and relating to x-ray generating apparatus - Google Patents
Improvements in and relating to x-ray generating apparatusInfo
- Publication number
- GB582889A GB582889A GB13881/43A GB1388143A GB582889A GB 582889 A GB582889 A GB 582889A GB 13881/43 A GB13881/43 A GB 13881/43A GB 1388143 A GB1388143 A GB 1388143A GB 582889 A GB582889 A GB 582889A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- potentiometer
- cathode
- contact
- lens electrodes
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/04—Hydrides of silicon
- C01B33/046—Purification
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
-
- 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
- H05G1/32—Supply voltage of the X-ray apparatus or tube
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- X-Ray Techniques (AREA)
Abstract
582,889. X-Ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 25, 1943, No. 13881. Convention date, Aug. 26, 1942. [Class 39 (i)] In an X-ray tube of the kind having a number of lens electrodes 22, 23 between the cathode 10 and the target 18, the potentials of the electrodes relatively to the cathode are obtained from a potentiometer 31 ... 33, and means are provided for selectively connecting the cathode to one or other of the lens electrodes without altering the potential conditions inside the tube. These consist of a common earth conductor connected to the target and to each of three pivoted contacts 40, 41, 42 biassed by springs so as to contact with the end of the potentiometer and the intermediate connections of the lens electrodes. Each contact is opened by an electromagnet 47, 48, 49 in circuit with a supply 51, 52, through a multi-contact switch 58 adapted to bridge two only of the terminals 54, 55, 56, 54<1>, the last of which is connected to the first by a jumper 57.. Movement of the switch over the successive pairs of terminals opens successively the contacts 40, 41, the contacts 40, 42 and the contacts 41, 42. The potentiometer is the secondary of a transformer, the primary of which is in the form of a number of coils 30a ... e distributed along the secondary and connected in parallel to a supply source, which may have a control device in the form of an auto-transformer 60.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US456179A US2405477A (en) | 1942-08-26 | 1942-08-26 | Ray-generating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB582889A true GB582889A (en) | 1946-12-02 |
Family
ID=23811770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13881/43A Expired GB582889A (en) | 1942-08-26 | 1943-08-25 | Improvements in and relating to x-ray generating apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2405477A (en) |
| BE (1) | BE475844A (en) |
| FR (1) | FR945686A (en) |
| GB (1) | GB582889A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2553580A (en) * | 1945-08-22 | 1951-05-22 | Sylvania Electric Prod | Electron discharge device |
| FR964669A (en) * | 1947-05-29 | 1950-08-22 | ||
| GB731929A (en) * | 1951-02-03 | 1955-06-15 | Licentia Gmbh | Improvements in x-ray tubes |
| US2897400A (en) * | 1956-10-24 | 1959-07-28 | Gen Electric | Adjustable bias for electron beam apparatus |
| US2952790A (en) * | 1957-07-15 | 1960-09-13 | Raytheon Co | X-ray tubes |
| US3158745A (en) * | 1962-08-14 | 1964-11-24 | Gen Electric | X-ray tube with means to selectively deflect the electron beam to plural targets |
-
1942
- 1942-08-26 US US456179A patent/US2405477A/en not_active Expired - Lifetime
-
1943
- 1943-08-25 GB GB13881/43A patent/GB582889A/en not_active Expired
-
1947
- 1947-04-25 FR FR945686D patent/FR945686A/en not_active Expired
- 1947-09-05 BE BE475844D patent/BE475844A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR945686A (en) | 1949-05-11 |
| US2405477A (en) | 1946-08-06 |
| BE475844A (en) | 1947-10-31 |
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