X-ray generator and driving method thereof
US-2017347438-A1 · Nov 30, 2017 · US
X-ray tube assembly
US9848483B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9848483-B2 |
| Application number | US-201414565629-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 10, 2014 |
| Priority date | Dec 11, 2013 |
| Publication date | Dec 19, 2017 |
| Grant date | Dec 19, 2017 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An x-ray tube assembly includes an x-ray tube with a vacuum envelope in which an emitter and an anode are arranged. The emitter is configured to be heated by an external coil emitter heating current supply. The emitter is configured as a flat emitter and an adaptation circuit is arranged between the flat emitter and the coil emitter heating current supply. A coil-emitter-based x-ray tube assembly may be replaced by a flat emitter-based x-ray tube assembly without constructional changes.
First claim
Opening claim text (preview).
The invention claimed is: 1. An x-ray tube assembly comprising: an x-ray tube comprising a vacuum envelope; an emitter arranged in the vacuum envelope, wherein the emitter is configured to be heated by an external coil emitter heating current supply, and wherein the emitter is configured as a flat emitter; an anode arranged in the vacuum envelope; and an adaptation circuit disposed between the flat emitter and the coil emitter heating current supply, wherein the adaptation circuit is configured as an active impedance transformer, wherein the external coil emitter heating current supply provides a rectified alternating current, and the adaptation circuit includes a low-pass filter and an impedance transformation unit with at least one DC-DC converter, and wherein the low-pass filter is connected to the external coil emitter heating current supply, and the impedance transformation unit is connected to the flat emitter. 2. The x-ray tube assembly of claim 1 , wherein the adaptation circuit is configured as a passive impedance transformer. 3. The x-ray tube assembly of claim 2 , wherein the coil emitter heating current supply provides an alternating current, and wherein the adaptation circuit includes at least one transformer, the at least one transformer being connected on a primary side to the coil emitter heating current supply and on a secondary side to the flat emitter. 4. The x-ray tube assembly of claim 1 , wherein the coil emitter heating current supply provides an alternating current, and wherein the adaptation circuit includes a rectifier arrangement, a downstream low-pass filter and an impedance transformation unit with at least one DC-DC converter, wherein the rectifier arrangement is connected to the coil emitter heating current supply and the impedance transformation unit is connected to the flat emitter. 5. The x-ray tube assembly of claim 1 , wherein the coil emitter heating current supply provides an alternating current and the adaptation circuit includes an impedance transformation unit with at least one DC-DC converter, wherein the at least one DC-DC converter is connected on an input side to the coil emitter heating current supply and is connected on an output side to the flat emitter. 6. The x-ray tube assembly of claim 1 , wherein the coil emitter heating current supply provides an alternating current and the adaptation circuit includes a transformer, a rectifier arrangement and a downstream low-pass filter, wherein the transformer is connected on a primary side to the coil emitter heating current supply and on a secondary side to the rectifier arrangement and the low-pass filter is connected to the flat emitter.
Assignees
Inventors
Classifications
- H05G1/34Primary
Anode current, heater current or heater voltage of X-ray tube · CPC title
Cathodes · CPC title
Details of the emitter, e.g. material or structure (H01J35/065 takes precedence) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9848483B2 cover?
- An x-ray tube assembly includes an x-ray tube with a vacuum envelope in which an emitter and an anode are arranged. The emitter is configured to be heated by an external coil emitter heating current supply. The emitter is configured as a flat emitter and an adaptation circuit is arranged between the flat emitter and the coil emitter heating current supply. A coil-emitter-based x-ray tube assemb…
- Who is the assignee on this patent?
- Setzer Stefan, Sons Stephan, Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification H05G1/34. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 19 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).