Image Production (Radiology) Questions
and Answers Already Passed
What is the primary function of mAs in image production?
✔✔ To control the quantity of X-ray photons produced
How does increasing kVp affect image contrast?
✔✔ It decreases contrast by increasing scatter radiation
What is the purpose of a grid in radiographic imaging?
✔✔ To reduce scatter radiation and improve image contrast
What is the relationship between SID and image sharpness?
✔✔ Increasing SID improves image sharpness and reduces magnification
How does increasing OID affect image magnification?
✔✔ It increases magnification and decreases image sharpness
1
,What type of beam restrictor provides the best collimation?
✔✔ Variable aperture collimator
Which interaction between X-rays and matter contributes most to patient dose?
✔✔ Photoelectric absorption
What is the effect of increasing focal spot size on image sharpness?
✔✔ It decreases image sharpness by increasing penumbra
Which exposure factor primarily controls image contrast in digital radiography?
✔✔ kVp
Why is it important to use the shortest possible exposure time?
✔✔ To reduce motion blur and improve image quality
What effect does a higher grid ratio have on image quality?
✔✔ It increases contrast by absorbing more scatter radiation
2
, What is the primary purpose of filtration in the X-ray beam?
✔✔ To remove low-energy photons and reduce patient dose
What happens if an image receptor is underexposed in digital radiography?
✔✔ The image appears grainy due to quantum mottle
Which type of distortion occurs when the X-ray tube is angled incorrectly?
✔✔ Elongation
What is the purpose of the anode heel effect in radiography?
✔✔ To provide a more uniform beam intensity across the image
How does increasing bit depth in digital imaging affect image quality?
✔✔ It improves image detail by allowing more shades of gray
What is the function of automatic rescaling in digital radiography?
✔✔ To adjust brightness and contrast for optimal image appearance
3
and Answers Already Passed
What is the primary function of mAs in image production?
✔✔ To control the quantity of X-ray photons produced
How does increasing kVp affect image contrast?
✔✔ It decreases contrast by increasing scatter radiation
What is the purpose of a grid in radiographic imaging?
✔✔ To reduce scatter radiation and improve image contrast
What is the relationship between SID and image sharpness?
✔✔ Increasing SID improves image sharpness and reduces magnification
How does increasing OID affect image magnification?
✔✔ It increases magnification and decreases image sharpness
1
,What type of beam restrictor provides the best collimation?
✔✔ Variable aperture collimator
Which interaction between X-rays and matter contributes most to patient dose?
✔✔ Photoelectric absorption
What is the effect of increasing focal spot size on image sharpness?
✔✔ It decreases image sharpness by increasing penumbra
Which exposure factor primarily controls image contrast in digital radiography?
✔✔ kVp
Why is it important to use the shortest possible exposure time?
✔✔ To reduce motion blur and improve image quality
What effect does a higher grid ratio have on image quality?
✔✔ It increases contrast by absorbing more scatter radiation
2
, What is the primary purpose of filtration in the X-ray beam?
✔✔ To remove low-energy photons and reduce patient dose
What happens if an image receptor is underexposed in digital radiography?
✔✔ The image appears grainy due to quantum mottle
Which type of distortion occurs when the X-ray tube is angled incorrectly?
✔✔ Elongation
What is the purpose of the anode heel effect in radiography?
✔✔ To provide a more uniform beam intensity across the image
How does increasing bit depth in digital imaging affect image quality?
✔✔ It improves image detail by allowing more shades of gray
What is the function of automatic rescaling in digital radiography?
✔✔ To adjust brightness and contrast for optimal image appearance
3
