X-ray Tube Cathode Overvoltage Transient Supression Apparatus
AssigneeGE Medical Systems Global Technology Company, LLC
InventorLiang Tang
Life of this patent
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Abstract
An imaging tube (30) includes multiple high voltage elements (64). A voltage-clamping device (70) is coupled between the high voltage elements (64) and prevents the occurrence of overvoltage transients in the minor insulation of an imaging tube (30).
Claims20
A cathode circuit for an imaging tube comprising:
- a plurality of high voltage elements;
- and
- at least one voltage-clamping device coupled between said plurality of high voltage elements and preventing occurrence of overvoltage transients in the cathode circuit.
An imaging tube comprising:
- a plurality of high voltage elements;
- and
- at least one voltage-clamping device coupled between said plurality of high voltage elements and preventing occurrence of overvoltage transients in the imaging tube.
An imaging tube as in claim 111 further comprising:
- a driving circuit;
- and
- a cathode coupled to said driving circuit via said plurality of high voltage elements.
An imaging tube as in claim 111 further comprising:
- a driving circuit;
- and
- a high voltage receptacle coupled to said driving circuit via said plurality of high voltage elements.
An imaging tube as in claim 111 wherein said plurality of high voltage elements exist within at least one of an imaging tube housing, insert, casing, cable assembly, cathode, flat connector, and high voltage receptacle.
An imaging tube as in claim 111 wherein said plurality of high voltage elements are a plurality of high voltage leads.
An imaging tube as in claim 111 wherein said at least one voltage-clamping device allows current flow between said plurality of high voltage leads when voltage potential between said plurality of high voltage leads is greater than a predetermined voltage level.
A cathode circuit comprising a plurality of high voltage elements having at least one discharge gap with a predetermined width, said plurality of high voltage elements discharging across said at least one gap when a voltage potential across said at least one gap is greater than a predetermined voltage level.
An imaging tube comprising:
- a cathode cup;
- a cathode terminal board coupled to said cathode cup via a first set of high voltage elements;
- a high voltage receptacle coupled to said cathode terminal board via a second set of high voltage elements;
- and
- a plurality of voltage clamping devices coupled to and preventing occurrence of overvoltage transients across said first set of high voltage elements and said second set of high voltage elements.
Dependencies are inferred from the claim text.