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Image System 43<br />

X-RAY TUBE<br />

OVERVIEW<br />

The X-ray Tube has 0.3 mm and 0.6 mm focal spots and a rotating anode that operates<br />

at approximately 3,000 rpm. The .6 mm focal spot is selected by software only in higher<br />

techniques in the film mode. The X-ray Tube housing is lead-lined aluminum and is filled<br />

with an insulating oil and hermetically sealed. The housing and tube weigh<br />

approximately 43 lbs.<br />

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Figure 25 - X-ray Tube<br />

STATOR CIRCUITRY<br />

See the Interlocks/Stator section of this manual for details about the X-ray tube stator<br />

circuitry.<br />

X-RAY TUBE TEMPERATURE SENSOR<br />

A temperature sensor, located in the X-ray tube housing assembly senses the heat<br />

within the housing. This signal (HOUSING_TEMP) is monitored by the Technique<br />

Processor PCB through A/D mux U3-23 on the Analog Interface PCB. Warning<br />

messages such as Housing Overheated will be displayed on the Control Panel display if<br />

the housing heat exceeds safe operating conditions.

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