Pre-heating of the filament of an xray tube
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United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Sep 13, 2024
filing date -
Sep 13, 2024
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Abstract
An apparatus includes an Xray tube that has a filament serving as a cathode and an anode. The apparatus is configured to perform a method of driving the filament that includes pre-heating the filament by flowing a current through the filament before a high-voltage is applied between the filament and the anode. The method includes increasing an effective value of the current and the high-voltage, preferably by stepping the effective value of the current and the high-voltage essentially simultaneously. The method includes emitting Xrays in response to increasing the effective value of the current through the filament and the high-voltage.
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