X-RAY PHYSICS LECTURE FINAL REVIEW

Front

What is the disadvantage of using a fixed mAs/variable kVp technique chart?

Back

Increases radiation dose to smaller patients.

Front

What type of dose-response relationship do non-stochastic effects have?

Back

Threshold.

Front

What unit is used to describe occupational exposure in classical nomenclature?

Back

REM.

Front

Which radiography method uses a photostimulable phosphor (PSP) plate to record exposure?

Back

Computed Radiography.

Front

What type of effects has an increased probability of occurrence with increased radiation dose?

Back

Stochastic effects.

Front

Define mAs in the context of X-ray physics.

Back

mAs stands for milliampere-seconds, a measure of the total amount of radiation produced during an X-ray exposure.

Front

What is kVp and its significance in X-ray imaging?

Back

kVp stands for kilovolt peak, which determines the quality and penetrating power of the X-ray beam.

Front

Explain the quantum mottle effect in radiography.

Back

Quantum mottle is a grainy appearance on an image caused by insufficient radiation exposure, leading to a lack of photons reaching the detector.

Front

What is the difference between stochastic and non-stochastic effects of radiation?

Back

Stochastic effects are probabilistic and have no threshold, while non-stochastic effects have a threshold and are directly related to the dose.

Front

What does the term 'occupational exposure' refer to in radiology?

Back

Occupational exposure refers to the radiation exposure that workers in the radiology field receive during their work.