Imaging

Question 1

What is intensity value?

Answer 1

Diff shades of black and grey

Question 2

What file format is commonly used in imaging?

Answer 2

Dicom

Question 3

Formula for X-ray thickness

Answer 3

I=i0e-2x

Question 4

What range are rays measured in?

Answer 4

30 to 100 kev

Question 5

What can X-rays detect mediums

Answer 5

Air fat soft tissue bone metal

Question 6

List the types of radiation

Answer 6

Alpha
Beta
Positron
Gamma
X-rays

Question 7

What is the half life equation?

Answer 7

Ln2/y

Question 8

What is a gamma emitter and what’s it used for?

Answer 8

Used for thyroid treatment emits g rays, pet positron emission, rotated gamma machine

Question 9

How does mri work?

Answer 9

1- sample put in magnetic field
2-radiated with radio waves at resonance frequency
3-sample reimts radio waves
4-image formed and read