X-Ray Quantity and Quality Factors Quiz

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What is the primary factor that controls x-ray quantity?

Milliamperage-second (mAs) (correct)

Kilovoltage (kVp)

Distance (d)

Filtration

If the mA is doubled, what happens to the mAs?

The mAs remains the same

The mAs is doubled (correct)

The mAs is quadrupled

The mAs is halved

Which of the following factors affects x-ray quality?

X-ray quantity

Distance (d)

Milliamperage-second (mAs)

Kilovoltage (kVp) and filtration (correct)

What is the half-value layer (HVL) a measure of?

X-ray quality Signup and view all the answers

What is the unit used to measure x-ray quantity or exposure?

Roentgen (R) Signup and view all the answers

What effect does a 15% increase in kVp have on exposure, according to the 15% rule?

Causes a doubling in exposure Signup and view all the answers

When changing kVp, what effect does it have on the interaction and absorption of the x-ray beam with anatomic tissue?

Reduces interaction and absorption Signup and view all the answers

What term is used to describe the distance an x-ray beam travels in matter?

Penetrability Signup and view all the answers

What is the effect of increasing the Source-to-Image Distance (SID) on x-ray beam intensity?

Decreases x-ray beam intensity proportionally Signup and view all the answers

According to the Reciprocity Law, what remains unchanged as long as the total exposure remains the same?

Density Signup and view all the answers

What happens to the x-ray beam intensity when the distance from the source is increased from 40cm to 72cm, according to the Inverse Square Law?

It decreases by a factor of 2 Signup and view all the answers

Which factor would lead to an increase in the number of transmitted rays on the Image Receptor (IR)?

$\text{Increasing kVp}$ Signup and view all the answers

Which of the following statements about the relationship between kVp and radiographic density is correct?

kVp has a tremendous impact on the radiographic density and is the controller of differences in radiographic densities (contrast) Signup and view all the answers

What is the primary factor that controls the quality and quantity of an x-ray beam?

kVp (kilovoltage peak) Signup and view all the answers

How does increasing the kVp affect the quantity of x-ray photons produced?

The quantity of x-ray photons increases approximately proportional to the square of the ratio of the change in kVp Signup and view all the answers

What is the primary factor that determines the degree of blackening (density) on a radiographic film?

The deposit of black metallic silver on the film emulsion Signup and view all the answers

What is the primary factor that determines the contrast in a radiographic image?

The kVp setting Signup and view all the answers

Which of the following statements about the relationship between x-ray beam quality and kVp is correct?

Higher kVp results in a higher quality x-ray beam with greater penetrating ability Signup and view all the answers