Cathode supply assembly

Patent metadata

Field	Value
Publication number	US-12457676-B2
Application number	US-202318484284-A
Country	US
Kind code	B2
Filing date	Oct 10, 2023
Priority date	Oct 10, 2023
Publication date	Oct 28, 2025
Grant date	Oct 28, 2025

Abstract

Systems are provided for a medical imaging system. In one example, an electronic assembly configured to control a cathode of an X-ray tube of the medical imaging system comprises a plurality of boards comprising a first analog board, a first digital board, a second power board, and a third power board, and at least two Faraday cages nested within one another, the at least two Faraday cages comprising an inner Faraday cage surrounding the first digital board and an outer Faraday cage surrounding each of the plurality of boards and the inner Faraday cage.

First claim

The invention claimed is:

1. An electronic assembly configured to control a cathode of an X-ray tube of a medical imaging system, the electronic assembly comprising:
a plurality of boards comprising a first analog board, a first digital board, a second power board, and a third power board; and
at least two Faraday cages nested within one another, the at least two Faraday cages comprising an inner Faraday cage surrounding the first digital board and an outer Faraday cage surrounding each of the plurality of boards and the inner Faraday cage.

2. The electronic assembly of claim 1 , wherein electronics of the second power board face electronics of the third power board.

3. The electronic assembly of claim 1 , wherein the first digital board is coupled to the first analog board, a portion of the first analog board is surrounded by the outer Faraday cage, and a remaining portion of the first analog board extends outside of the outer Faraday cage.

4. The electronic assembly of claim 3 , wherein the portion of the first analog board, the first digital board, the second power board, and the third power board are vertically stacked.

5. The electronic assembly of claim 4 , further comprising an interconnecting board coupled to the first analog board, the second power board, and the third power board.

6. The electronic assembly of claim 3 , wherein the inner Faraday cage is coupled to the first analog board.

7. The electronic assembly of claim 1 , wherein each of the inner Faraday cage and outer Faraday comprises a plurality of perforations.

8. The electronic assembly of claim 1 , wherein the outer Faraday cage is physically coupled to the second power board and the third power board via a plurality of eyelets and a plurality of fasteners.

9. A cathode supply assembly for a medical imaging system, comprising:
a housing;
a plurality of boards interconnected by an interconnecting board, the plurality of boards and the interconnecting board arranged within an interior volume of the housing; and
an inner Faraday cage surrounding a first digital board of the plurality of boards, wherein an outer Faraday cage of the housing surrounds each of the first digital board, a second power board, and a third power board of the plurality of boards.

10. The cathode supply assembly of claim 9 , wherein the first digital board, the second power board, and the third power board are vertically stacked such that electronics of the second power board face the third power board, and electronics of the third power board face the second power board.

11. The cathode supply assembly of claim 9 , wherein the first digital board is mounted to a portion of a first analog board extending into the housing.

12. The cathode supply assembly of claim 11 , wherein the first analog board comprises a remaining portion that is arranged outside of the housing, the remaining portion comprising a transformer.

13. The cathode supply assembly of claim 12 , wherein each of the first digital board, the first analog board, the second power board, and the third power board extend in respective planes parallel to each other, wherein the interconnecting board extends in a plane perpendicular to the respective planes, and wherein the interconnecting board is electrically coupled to the first analog board, the second power board, and the third power board.

14. The cathode supply assembly of claim 9 , wherein the plurality of boards is electrically coupled to a cathode via a cable.

15. The cathode supply assembly of claim 14 , wherein the cathode is unipolar and wherein the cable has a length in a range of 10-40 m.

16. A medical imaging system, comprising:
a cathode supply assembly, a high-voltage (HV) transformer, a dynamic damper, and a HV connector coupled to an X-ray tube, wherein the dynamic damper is arranged between the HV transformer and the cathode supply assembly; wherein
a housing of the cathode supply assembly comprises an outer Faraday cage;
a plurality of boards is enclosed by the housing, the plurality of boards comprising a first digital board, a second power board, and a third power board;
a first analog board extends under the plurality of boards and a portion of the first analog board is within the housing; and
an inner Faraday cage encloses the first digital board and is arranged within an interior volume of the housing.

17. The medical imaging system of claim 16 , wherein electronics of the first digital board extend from the first digital board upward along a vertical axis, wherein electronics of the second power board extend from the second power board upward along the vertical axis, and wherein electronics the third power board extend downward from the third power board along the vertical axis.

18. The medical imaging system of claim 16 , wherein the outer Faraday cage is formed from a plurality of pieces comprising a first outer Faraday cage portion physically coupled to a second outer Faraday cage portion, a top side, and a bottom side, wherein the top side is positioned above the third power board and the bottom side is positioned below the first analog board and wherein the second power board and the third power board are outside of the inner Faraday cage.

19. The medical imaging system of claim 16 , wherein one or more of the inner Faraday cage and the outer Faraday cage comprises a plurality of perforations.

20. The medical imaging system of claim 16 , wherein a height of the housing is equal to a height of the HV transformer, and wherein the HV transformer, the cathode supply assembly, the dynamic damper, and the HV connector are housed in a high voltage tank assembly housing.

Assignees

• Ge Prec Healthcare Llc

Inventors

• Louvrier Yannick
• Nicolle Julien
• Josse Jean Luc
• Caiafa Antonio

Classifications

• H05K9/005

  being nesting containers · CPC title

• H05K9/002

  with localised screening · CPC title

• A61B6/56

  Details of data transmission or power supply, e.g. use of slip rings · CPC title

• A61B6/54

  Control of apparatus or devices for radiation diagnosis · CPC title

• A61B6/107

  Protection against radiation, e.g. shielding · CPC title