Basic X-Ray Imaging Concepts

These flashcards cover key concepts related to x-ray imaging, including components, functions, and the principles behind x-ray tube operation.

What is Kilovoltage Peak (kVp)?

It is the peak potential applied to the x-ray tube that accelerates electrons from the cathode to the anode.

What does Milliampere-second (mAs) measure?

It measures the quantity of radiation produced (milliamperage/mA) over a set amount of time (seconds/s) via an x-ray tube.

What are the three main components of an x-ray imaging system?

The Operating Console, High-Voltage Generator, and X-Ray Tube.

What is the purpose of the operating console in x-ray imaging?

It allows the radiologic technologist to control the x-ray tube current and voltage for proper x-ray beam quality and quantity.

What role does the autotransformer play in x-ray imaging?

It adjusts the voltage supplied to the filament circuit and to the high-voltage circuit of the x-ray imaging system.

What is the purpose of a line compensator in an x-ray system?

It measures and adjusts the supply voltage to maintain a constant voltage of approximately 220 V through the x-ray circuit.

What is the function of the filament circuit?

It produces the necessary current to heat the filament, which in turn generates electrons through thermionic emission.

How does the anode contribute to the functioning of an x-ray tube?

The anode conducts electricity, radiates heat, and serves as the target area where x-rays are produced.

What is the 'Anode Heel Effect'?

It refers to the phenomenon where the radiation intensity on the cathode side of the x-ray field is greater than on the anode side due to absorption in the anode heel.

What are the three causes of x-ray tube failure?

Single excessive exposure, long exposure time, and vaporization of the filament.