Cylindrical high voltage arrangement for a miniature x-ray system
View Patent ↗An embodiment of a device for producing x-rays is described that comprises an x-ray tube and a high-voltage power supply electrically coupled to the x-ray tube, where the high-voltage power supply comprises a first stack of D shaped capacitors arranged in an opposed relationship with a second stack of D shaped capacitors.
1. A device for producing x-rays, the device comprising:
an x-ray tube; and
a high-voltage power supply electrically coupled to the x-ray tube, wherein the high-voltage power supply comprises a first stack of D shaped capacitors arranged in an opposed relationship with a second stack of D shaped capacitors, wherein each D shaped capacitor is substantially planar and comprises a straight edge and a semi-circular edge.
2. The device of claim 1 , wherein:
the first and second stacks each comprise a single layer capacitor arrangement comprising a breakdown voltage value of about 25kV.
3. The device of claim 1 , wherein:
the first stack of D shaped capacitors is separated from the second stack of D shaped capacitors by a circuit board.
4. The device of claim 3 , wherein:
the first and second stacks attach to the circuit board in a cantilevered arrangement.
5. The device of claim 3 , wherein:
the D shaped capacitors comprise an attachment extension that attaches to the circuit board.
6. The device of claim 3 , further comprising:
a feedback resistor positioned in the same plane as the circuit board.
7. The device of claim 6 , further comprising:
the feedback resistor is positioned in a slot of circuit board.
8. The device of claim 1 , further comprising:
a plurality of diodes positioned between the first and second stacks of D shaped capacitors.
9. The device of claim 8 , further comprising:
the diodes comprise a cylindrical form of about 2 mm in diameter.
10. The device of claim 8 , further comprising:
the diodes comprise a fast recovery time of about 20 ns and a low capacitance value of about 0.3 pF.
11. The device of claim 1 , wherein:
the straight edge of the first stack of D shaped capacitors is opposed to the straight edge of the second stack of D shaped capacitors.
12. The device of claim 1 , wherein:
the first and second stacks comprises a network of stages.
13. The device of claim 12 , wherein:
the network of stages comprises 12 stages.
14. The device of claim 12 , wherein:
each stage comprises a D shaped capacitor from the first stack and a D shaped capacitor from the second stack.
15. The device of claim 1 , further comprising:
a contact element that electrically couples the high-voltage power supply with the x-ray tube.
16. The device of claim 15 , wherein:
the contact element comprises a spring.
17. The device of claim 1 , wherein:
the high-voltage power supply comprises an outside diameter of about 0.56 inches.