GB182195A - Improved method and means for regulating the degree of vacuum in x-ray tubes - Google Patents
Improved method and means for regulating the degree of vacuum in x-ray tubesInfo
- Publication number
- GB182195A GB182195A GB918821A GB918821A GB182195A GB 182195 A GB182195 A GB 182195A GB 918821 A GB918821 A GB 918821A GB 918821 A GB918821 A GB 918821A GB 182195 A GB182195 A GB 182195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- nitrogen
- contained
- chamber
- vacuum
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/20—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
Landscapes
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- X-Ray Techniques (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
182,195. Jackson, Sir H., Philpot, A. J., and British Scientific Instrument Research Association. March 24, 1921. R÷ntgen-ray tubes. -The vacuum is regulated by means of a device for controlling the supply of pure nitrogen to the tube, and another device for absorbing nitrogen, both devices being in f r e e communication with the tube. As shown, a substance C for evolving nitrogen, such as boron or other nitride, is contained in a chamber A, and may be heated by a tungsten or other filament D. An electrode G, of a substance such as boron or titanium, which absorbs nitrogen when a discharge passes therefrom to the cathode H, is contained in a glass or silica tube L in a chamber F. Plugs E, M of glass wool prevent the softening and hardening substances from passing to the tube B. The tube L may be supported by projections N or a flange, and by glass wool O. The plug M may be replaced by a curved tube. The nitride may be contained in a glass vessel mounted inside the chamber A.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB918821A GB182195A (en) | 1921-03-24 | 1921-03-24 | Improved method and means for regulating the degree of vacuum in x-ray tubes |
| DE1922B0104017 DE382397C (en) | 1921-03-24 | 1922-03-17 | Device for changing the vacuum in X-ray tubes or other electrical discharge tubes |
| FR549102D FR549102A (en) | 1921-03-24 | 1922-03-18 | Improved method and apparatus for controlling the degree of vacuum of chi-ray tubes and other electric discharge tubes |
| GB1417123A GB208480A (en) | 1921-03-24 | 1923-05-29 | Improved method and means for regulating the degree of vacuum in x-ray tubes |
| DEB110090D DE390858C (en) | 1921-03-24 | 1923-06-26 | Device for changing the vacuum in X-ray tubes or other electrical discharge tubes |
| FR27915D FR27915E (en) | 1921-03-24 | 1923-07-09 | Improved method and apparatus for controlling the degree of vacuum of chi-ray tubes and other electric discharge tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB918821A GB182195A (en) | 1921-03-24 | 1921-03-24 | Improved method and means for regulating the degree of vacuum in x-ray tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB182195A true GB182195A (en) | 1922-06-26 |
Family
ID=40349947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB918821A Expired GB182195A (en) | 1921-03-24 | 1921-03-24 | Improved method and means for regulating the degree of vacuum in x-ray tubes |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE382397C (en) |
| FR (1) | FR549102A (en) |
| GB (1) | GB182195A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL193415A (en) * | 1953-12-21 |
-
1921
- 1921-03-24 GB GB918821A patent/GB182195A/en not_active Expired
-
1922
- 1922-03-17 DE DE1922B0104017 patent/DE382397C/en not_active Expired
- 1922-03-18 FR FR549102D patent/FR549102A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR549102A (en) | 1923-02-02 |
| DE382397C (en) | 1923-10-02 |
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