Cathode header optic for x-ray tube
First Claim
Patent Images
1. A cathode header optic device for an x-ray tube, the device comprising:
- an elongate trench with opposite trench walls and a bottom wall;
a cup recess formed in the trench and with an opening thereto formed in the bottom wall of the trench, and having a bounded perimeter including a bottom; and
a cathode element disposed in the trench at the opening of the cup recess, the cathode element capable of heating and releasing electrons.
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Accused Products
Abstract
A cathode header optic for an x-ray tube includes an elongate trench with opposite trench walls. A cup recess is formed in the trench between the opposite trench walls, and has a bounded perimeter. A cathode element is disposed in the trench at the cup recess. The cathode element is capable of heating and releasing electrons. A secondary cathode optic defining a cathode ring can be disposed about the header optic. The cathode optics can form part of an x-ray tube.
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Citations
28 Claims
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1. A cathode header optic device for an x-ray tube, the device comprising:
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an elongate trench with opposite trench walls and a bottom wall; a cup recess formed in the trench and with an opening thereto formed in the bottom wall of the trench, and having a bounded perimeter including a bottom; and a cathode element disposed in the trench at the opening of the cup recess, the cathode element capable of heating and releasing electrons. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An x-ray tube device, comprising:
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a) an evacuated dielectric tube; b) an anode, disposed at an end of the tube, including a material configured to produce x-rays in response to impact of electrons; c) a cathode, disposed at an opposite end of the tube opposing the anode, including a cathode element configured to produce electrons accelerated towards the anode in response to an electric field between the anode and the cathode; and d) the cathode including a cathode header optic comprising; i) an elongate trench with opposite trench walls and a bottom wall; ii) a cup recess formed in the trench and with an opening thereto formed in the bottom wall of the trench, and having a bounded perimeter including a bottom; and iii) the cathode element disposed in the trench at the opening of the cup recess. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. An x-ray tube device, comprising:
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a) an evacuated dielectric tube; b) an anode, disposed at an end of the tube, including a material configured to produce x-rays in response to impact of electrons; c) a cathode, disposed at an opposite end of the tube opposing the anode, including a cathode element configured to produce electrons accelerated towards the anode in response to an electric field between the anode and the cathode; and d) the cathode including a header optic comprising; i) an elongate trench with opposite trench walls and a bottom wall; ii) a cup recess formed in the trench and with an opening thereto formed in the bottom wall of the trench, and having a bounded perimeter including a bottom; iii) the cathode element disposed in the trench at the opening of the cup recess; iv) a lead bore adjacent the cup recess; and v) a lead pin extending through the lead bore and electrically coupled to the cathode element. - View Dependent Claims (25, 26)
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27. An x-ray tube device, comprising:
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a) an evacuated dielectric tube; b) an anode, disposed at an end of the tube, including a material configured to produce x-rays in response to impact of electrons; c) a cathode, disposed at an opposite end of the tube opposing the anode; d) a cathode element configured to produce electrons accelerated towards the anode in response to an electric field between the anode and the cathode; e) the cathode including a header comprising; i) a single lead bore extending through the header; and ii) a single lead pin extending through the lead bore and electrically coupled to an end of the cathode element, another end of the cathode element being directly electrically coupled to the header.
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28. An x-ray tube device, comprising:
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a) an evacuated dielectric tube; b) an anode, disposed at an end of the tube, including a material configured to produce x-rays in response to impact of electrons; c) a cathode, disposed at an opposite end of the tube opposing the anode, including a cathode element configured to produce electrons accelerated towards the anode in response to an electric field between the anode and the cathode; d) the cathode including a cathode header optic comprising; i) an elongate trench with opposite trench walls and a bottom wall; ii) a cup recess formed in the trench and with an opening thereto formed in the bottom wall of the trench, and having a bounded perimeter including a bottom; and iii) the cathode element disposed in the trench at the opening of the cup recess; and e) the cathode further including a secondary cathode optic comprising; i) a cathode ring disposed between the cathode header optic and the tube and having a perimeter wall defining a well with the trench disposed at a bottom of the well.
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Specification