X-RAY SYSTEM WITH FIELD EMITTERS AND ARC PROTECTION

An x-ray tube, comprising: a cathode structure including a field emitter 104; an anode 102; and a focus electrode 106, 106a disposed between the field emitter and the anode; wherein the focus electrode is disposed relative to the field emitter and the anode, and the focus electrode is shaped such th...

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Bibliographische Detailangaben
Hauptverfasser: KIRKHAM, Dave, WOODMAN, Colton B
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:An x-ray tube, comprising: a cathode structure including a field emitter 104; an anode 102; and a focus electrode 106, 106a disposed between the field emitter and the anode; wherein the focus electrode is disposed relative to the field emitter and the anode, and the focus electrode is shaped such that during operation, a point of highest electric field strength on the cathode structure is closer to the focus electrode than the field emitter.