Question

Collimation:

1. accomplished by electrically blocking x-rays
2. affects scan time
3. limits low every x-ray photons and passed high energy photons
4. is accomplished by physically blocking x-rays

Answer 1

Collimation is accomplished by physically blocking x-rays. It affects scan time and limits low energy x-ray photons while allowing high energy photons to pass through.

Step-by-step explanation:

Collimation is accomplished by physically blocking x-rays. It involves limiting the spread of x-rays to capture only the desired area of the body. By using collimators or aperture diaphragms, the size and shape of the x-ray beam can be controlled, reducing unnecessary radiation exposure to the patient.

Collimation can also affect scan time. By narrowing the x-ray beam, less time is needed to capture the image because the radiation is focused on the targeted area.

Collimation limits low energy x-ray photons and allows only the higher energy photons to pass through. This helps to improve image quality and reduce scatter radiation, resulting in clearer and more detailed x-ray images.