Miniature X-ray source device
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United States of America Patent
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Mar 21, 2006
Grant Date -
Feb 10, 2005
app pub date -
Jun 29, 2004
filing date -
Jun 30, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A miniature X-ray source device connected to a distal end of a guiding wire for insertion towards a desired location within an animal body for effecting radiation thereby. The X-ray source device at least includes a vacuum tube containing a cathode and an anode spaced apart at a distance from each other; an emitter for emitting free electrons from the cathode; an electric field generator for applying a high-voltage electric field between the cathode and the anode for accelerating the emitted free electrons towards the anode; and a getter material located in a high-voltage electric field free region in the vacuum tube. The vacuum tube is at least partly transparent to X-ray radiation emitted by the anode.
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