Hazards of Contamination & Irradiation (AQA GCSE Physics): Flashcards
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15 cards from this deck
What radiation does to atoms in living cells
What radiation does to atoms in living cells
Ionises them
Health risk caused by ionising radiation
Health risk caused by ionising radiation
Cancer
Definition of irradiation
Definition of irradiation
Exposure to radiation
Does irradiating an object make it radioactive?
Does irradiating an object make it radioactive?
No
Container to reduce irradiation effects
Container to reduce irradiation effects
Lead-lined boxes
Physical protection to reduce irradiation
Physical protection to reduce irradiation
Stand behind barriers
Definition of radioactive contamination
Definition of radioactive contamination
Unwanted radioactive atoms on/in an object
Why is contamination hazardous?
Why is contamination hazardous?
Atoms decay and release ionising radiation
Equipment to prevent skin contact with radioactive atoms
Equipment to prevent skin contact with radioactive atoms
Gloves and tongs
Protection to prevent inhalation of radioactive material
Protection to prevent inhalation of radioactive material
Protective suits
Use of gamma radiation in sterilisation
Use of gamma radiation in sterilisation
Kills bacteria (e.g., on needles)
Protective equipment against alpha radiation
Protective equipment against alpha radiation
Gloves
Protection against beta and gamma radiation
Protection against beta and gamma radiation
Lead aprons
Purpose of a radiation monitor
Purpose of a radiation monitor
Measures how much radiation has been received
Action if worker receives too much radiation
Action if worker receives too much radiation
Must stop working with radioactive isotopes