Contamination and irradiation (AQA GCSE Physics): Flashcards
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Definition of irradiation
Definition of irradiation
Radiation exposure from outside your body
Definition of contamination
Definition of contamination
Radioactive material on or inside your body
After irradiation, do you become radioactive?
After irradiation, do you become radioactive?
No, you don't become radioactive
What happens to irradiation when you move away from the source?
What happens to irradiation when you move away from the source?
It stops, you're no longer being irradiated
Types of radiation in irradiation
Types of radiation in irradiation
Gamma rays, beta particles, or X-rays
Range of alpha particles in air
Range of alpha particles in air
About 5 cm (very short)
Two types of contamination
Two types of contamination
External and internal
External contamination definition
External contamination definition
Radioactive material on skin, hair, or clothing
Internal contamination definition
Internal contamination definition
Radioactive material inside your body
How internal contamination occurs
How internal contamination occurs
Breathing in, eating, or drinking radioactive material
Location of radiation source in irradiation
Location of radiation source in irradiation
Outside your body, separate from you
What happens with contamination after moving away from source?
What happens with contamination after moving away from source?
Continues to expose you to radiation