EMR And X-ray Spectrum

Question 1

What does EMR mean?

Answer 1

ELECTROMAGNETIC RADIATION​

Question 2

Whats wavelength

Answer 2

Wavelength – the distance between two successive peaks or troughs​

Question 3

Whats amplitude

Answer 3

Amplitude –the maximum value of the peak or trough (max Field Strength or Intensity)​

Question 4

What is intensity

Answer 4

Intensity – Rate of Energy Flow per unit area

Question 5

How can EMR be produced

Answer 5

Sudden deceleration of electrons​

The transition of electrons between shells​

Interaction of electrons with the nucleus of an atom​

Radioactive decay​

Question 6

Whats frequency and units

Answer 6

Frequency – the number of complete cycles passing a reference point per unit time
1 HERTZ = 1 CYCLE PER SECOND​

Question 7

What’s the principle of duality

Answer 7

That EMR has wave-like and particle-like properties

Planck’s law relates energy and wavelength

Question 8

How are wavelength and energy linked

Answer 8

Wavelength is inversely proportional to Energy​

as one value increases, the other value decreases, and vice versa​

Question 9

Why is a filtration (metal) used in an x-ray tube

Answer 9

Remove long-wavelength photons because they are low energy.
Low energy= gets absorbed by the patient and doesn’t reach the image receptor (not helpful/skin burns)

This means the overall intensity beam is reduced