X-Ray Generator (High Voltage Power Supply(Ies)) - GE Medical Systems PRODIGY Service Manual

2.8

X-ray Generator (High Voltage Power Supply(ies))

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2-66 System Overview
The PRODIGY X-ray production system combines a constant potential x-ray
generator (consisting of either one or two high voltage power supplies) and an
X-ray tube. The x-rya generator provides a continuous output of 38 kV each
and up to 5 mA (PRODIGY I) or 3.5 mA (PRODIGY II) to the X-ray tube. The
x-ray insert anode is composed of a tungsten alloy. The specifications of the
X-ray generation subsystem is outlined in section 2.16.7.
• The High Voltage Power Supply(ies) provide the anode/cathode potential
to the X-ray insert.
• PRODIGY I scanners use two high-voltage power supplies (±40kVDC).
During normal operation, 76kVp is applied (+38kV at the anode and -
38kV at the cathode).
• PRODIGY II scanners use a single high-voltage power supply
(±40kVDC). During normal operation, 76kVp is applied (+38kV at the
anode and -38kV at the cathode).
• The High Voltage Power Supplies are controlled by the (c)SBC.
• These power supplies are powered by the AC line voltage and have their
own built in fusing.
• The AC power is routed thru the isolation transformer (PRODIGY I Only)
and the supply(ies) are enabled via a relay (see section 2.1.1).
PRODIGY Service Manual (Rev C - 2000)