Ionizing Radiation

Question 1

instrument used in measuring gamma radiation

Answer 1

Geiger counter

Question 2

neutron radiation may be shielded via __?

Answer 2

thermalized by elastic collision with hydrogenous materials

Question 3

Which is not a primarily internal hazard?
A. alpha radiation
B. beta radiation
C. photon radiation

Answer 3

C

Question 4

longest in range
A. alpha radiation
B. beta radiation
C. photon radiation

Answer 4

C

Question 5

two materials used to shield photon radiation

Answer 5

lead, steel

Question 6

two materials used to shield beta radiation

Answer 6

aluminum & organoplastics

Question 7

In experiments, alpha particles were deflected toward __ charge, while beta particles were deflected toward __ charge

(positive, negative)

Answer 7

alpha - negative

beta - positive

Question 8

How is alpha radiation an internal radiation hazard?

Answer 8

When alpha-radiation-emitting nuclear substances are taken into the body, the energy of alpha radiation is completely absorbed into bodily organs and tissues

Question 9

How is beta radiation an external AND internal radiation hazard?

Answer 9

beta radiation with sufficient energy can penetrate body’s dead outer layer of skin && penetrate into skin’s active layer of dividing cells