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Radiology: Tube Current and X-ray Photon Production

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Radiology: Tube Current and X-ray Photon Production

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Questions and Answers

What is the primary factor that determines the amount of radiation dose that reaches the patient and the image receptor?

Beam shape and size

Tube current (mAs) (correct)

Anode heel effect

Kilovoltage (kVp)

What is the effect of increasing the tube current on the number of X-ray photons produced?

The number of X-ray photons becomes unpredictable

The number of X-ray photons increases (correct)

The number of X-ray photons remains the same

The number of X-ray photons decreases

What is the range of X-ray energy produced by a 50 kVp X-ray tube?

50 keV to 100 keV

30 keV to 50 keV

15 keV to 30 keV

15 keV to 50 keV (correct)

What is the effect of increasing the kilovoltage on the X-ray photon energy?

The X-ray photon energy increases Signup and view all the answers

What is the anode heel effect caused by?

The absorption of X-rays by the anode itself Signup and view all the answers

What is the shape of the X-ray beam?

Cone-shaped Signup and view all the answers

What is the main controller of image density in radiography?

Tube current (mAs) Signup and view all the answers

What is the effect of increasing the kilovoltage on the image contrast?

The image contrast decreases Signup and view all the answers

What determines the X-ray photons' visibility and penetrability?

Kilovoltage (kVp) Signup and view all the answers

What is the factor that affects the number of X-ray photons produced, and consequently the dose?