CAT scanner
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United States of America Patent
Stats
-
Nov 6, 1990
Issued Date -
N/A
app pub date -
Jan 5, 1990
filing date -
Dec 20, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A CAT (computerized axial tomography) scanner having a lightweight rotary portion. The scanner has slip rings through which electric power is supplied to an x-ray tube. The slip rings do not need any special insulating mechanism. The scanner includes an inverter (3) for converting a line voltage into an AC voltage between the line voltage and a high voltage applied to the x-ray tube. The frequency of the AC voltage is between the frequency of the line voltage and radio frequencies. This AC voltage is supplied via the slip rings to the rotary portion and then stepped up and rectified by step-up tanks (7, 8) on the rotary portion to obtain the high DC voltage applied to the x-ray tube.
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