Uses and dangers of radiation

When is alpha useful?

Smoke alarms, ionises the air and creates a current

When is beta useful

Measuring thickness of materials

When is gamma useful?

Radiation therapy, sterilisation

Difference between irradiation and contamination

Irradiation, object is exposed to radiation, contamination, object becomes radioactive

How do you stay safe from irradiation and contaimination

Irradiation, lead clothing, contamination, radiation suit.

How to overall stay safe from radiation?

Sheilding, distance and time spent near it.