X-ray tube rating 3 Flashcards
What is the primary use of a radiographic tube rating chart?
It is mostly used in radiography to provide direction about the selection of safe exposure factors by the radiographer for each procedure.
How should a radiographer use the radiographic tube rating chart?
The radiographer should select exposure factors that do not place their intersection point outside the curve, ensuring the exposures are within the tube loading and do not damage the X-ray tube.
What is the purpose of a housing cooling chart?
It permits the calculation of the time necessary for the housing to cool enough for additional exposures to be made, calculated in terms of radiographic heat units.
What is an anode thermal characteristic chart?
It is a cooling chart with a single curve that gradually drops from the maximum thermal capacity in Heat Units (HU) to zero over a period of minutes, permitting the calculation of the time necessary for the anode to cool enough for additional exposure.
How does a rating chart assist in troubleshooting X-ray tube performance?
It provides essential information about the capabilities and limitations of the X-ray tube, guiding decisions regarding maintenance or replacement of the tube.
What should you identify first when extracting information from rating charts?
Identify the make and model of the X-ray tube to ensure you have the correct rating chart for your particular X-ray tube.
How do you determine the operating limits using the X-ray rating chart?
Use the chart to find the maximum allowable tube current and exposure for your X-ray tube, considering the heat capacity specified on the chart.
What should you do if the exposure factors place their intersection point outside the curve on the rating chart?
Adjust the exposure settings on the X-ray machine to ensure they fall within the safe operating limits of the X-ray tube to prevent overheating.
