X-rays In Medicine

Question 1

What can X-rays pass through?

Answer 1

Soft material and they are absorbed by dense material (eg bones)

Question 2

What do X-rays mark?

Answer 2

Photographic film to create X-ray images

Question 3

What do CT scans do?

Answer 3

Use X-rays to create a 3D image of soft and hard tissue

Question 4

What happens in a CT scan?

Answer 4

X-rays are emitted and detected on other side. Cylinder rotates and multiple images are taken.

Question 5

What are the dangers of X-rays?

Answer 5

They can ionise and kill cells

Question 6

How can X-rays be used and how does it have to be done?

Answer 6

To treat cancer cells but they have to be focused on tumour at correct angle so they don’t harm healthy cells

Question 7

What precautions have to be taken when dealing with X-rays?

Answer 7

1) Radiographers wear lead aprons and have lead screens

2) Patients have lead shields on rest of body

Question 8

Describe an X-ray

Answer 8

High frequency, short wavelength, electromagnetic