GB230183A - Improvements in or relating to x-ray tubes - Google Patents
Improvements in or relating to x-ray tubesInfo
- Publication number
- GB230183A GB230183A GB30741/23A GB3074123A GB230183A GB 230183 A GB230183 A GB 230183A GB 30741/23 A GB30741/23 A GB 30741/23A GB 3074123 A GB3074123 A GB 3074123A GB 230183 A GB230183 A GB 230183A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium
- ray tubes
- relating
- cathode
- ionization
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- H01J35/064—Details of the emitter, e.g. material or structure
Landscapes
- X-Ray Techniques (AREA)
Abstract
230,183. Ruben, S. Dec. 6, 1923. R÷ntgen-ray tubes. -An electrode such as a cathode is composed! partly of metallic calcium. A pointed cathode 2 consists of a conducting crystalline compound such as silica carbide, and a strip 11 of calcium is attached to the support. When ionization occurs calcium is vaporized and gas is absorbed. The anode 3 is of copper with a refractory target 3a. A resistance may be connected in series with the tube to prevent a heavy discharge due to ionization.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB30741/23A GB230183A (en) | 1923-12-06 | 1923-12-06 | Improvements in or relating to x-ray tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB30741/23A GB230183A (en) | 1923-12-06 | 1923-12-06 | Improvements in or relating to x-ray tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB230183A true GB230183A (en) | 1925-03-06 |
Family
ID=10312402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30741/23A Expired GB230183A (en) | 1923-12-06 | 1923-12-06 | Improvements in or relating to x-ray tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB230183A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1200442B (en) * | 1961-11-08 | 1965-09-09 | Csf | Process for making a high field emission tip cathode |
WO1999005694A1 (en) * | 1997-07-25 | 1999-02-04 | Xrt Corp. | Miniature x-ray device having cold cathode |
WO1999009580A1 (en) * | 1997-08-18 | 1999-02-25 | Xrt Corp. | Cathode from getter material |
US6095966A (en) | 1997-02-21 | 2000-08-01 | Xrt Corp. | X-ray device having a dilation structure for delivering localized radiation to an interior of a body |
US6289079B1 (en) | 1999-03-23 | 2001-09-11 | Medtronic Ave, Inc. | X-ray device and deposition process for manufacture |
US6353658B1 (en) | 1999-09-08 | 2002-03-05 | The Regents Of The University Of California | Miniature x-ray source |
US6377846B1 (en) | 1997-02-21 | 2002-04-23 | Medtronic Ave, Inc. | Device for delivering localized x-ray radiation and method of manufacture |
US6464625B2 (en) | 1999-06-23 | 2002-10-15 | Robert A. Ganz | Therapeutic method and apparatus for debilitating or killing microorganisms within the body |
-
1923
- 1923-12-06 GB GB30741/23A patent/GB230183A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1200442B (en) * | 1961-11-08 | 1965-09-09 | Csf | Process for making a high field emission tip cathode |
US6095966A (en) | 1997-02-21 | 2000-08-01 | Xrt Corp. | X-ray device having a dilation structure for delivering localized radiation to an interior of a body |
US6377846B1 (en) | 1997-02-21 | 2002-04-23 | Medtronic Ave, Inc. | Device for delivering localized x-ray radiation and method of manufacture |
WO1999005694A1 (en) * | 1997-07-25 | 1999-02-04 | Xrt Corp. | Miniature x-ray device having cold cathode |
WO1999009580A1 (en) * | 1997-08-18 | 1999-02-25 | Xrt Corp. | Cathode from getter material |
US6289079B1 (en) | 1999-03-23 | 2001-09-11 | Medtronic Ave, Inc. | X-ray device and deposition process for manufacture |
US6464625B2 (en) | 1999-06-23 | 2002-10-15 | Robert A. Ganz | Therapeutic method and apparatus for debilitating or killing microorganisms within the body |
US6491618B1 (en) | 1999-06-23 | 2002-12-10 | Robert A. Ganz | Apparatus and method for debilitating or killing microorganisms within the body |
US6890346B2 (en) | 1999-06-23 | 2005-05-10 | Lumerx Inc. | Apparatus and method for debilitating or killing microorganisms within the body |
US6353658B1 (en) | 1999-09-08 | 2002-03-05 | The Regents Of The University Of California | Miniature x-ray source |
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