Radiation Shielding

Question 1

What can stop alpha particles?

Answer 1

Alpha particles can be stopped by a piece of paper and even the skin

Question 2

What are the three ways to reduce radiation exposure?

Answer 2

1) Time
2) Distance
3) Shielding

Question 3

What can shield beta particles?

Answer 3

Plastic and glass are the preferred shields for beta radiation

Question 4

What can shield gamma particles?

Answer 4

Lead and concrete

Question 5

Can beta particles be blocked with lead

Answer 5

NO. If a beta particle hits lead, it creates a gamma ray.
- Bremsstrahlung

Question 6

What are half value layer shielding equations?

Answer 6

I₂ = I₁/2^(x/HVL) [final intensity after having passed through a shield]
X =3.32log(I₂/I₁/)*HVL [solving for shield thickness]

Question 7

What is the tenth value layer shielding equation?

Answer 7

I₂ = I₁/10^(x/TVL)

Question 8

What is the half value layer?

Answer 8

The thickness of a material at which the intensity of radiation penetrating it is reduced by half.