Contamination & Irradiation (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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Duration of contamination
Duration of contamination
Lasts for a long period of time
What is radioactive contamination?
What is radioactive contamination?
Unwanted presence of radioactive atoms on other materials
How does contamination occur?
How does contamination occur?
Radioactive source/material is transferred to an object
Hazard of radioactive contamination
Hazard of radioactive contamination
Decaying contaminated atoms release radiation
Example of contamination
Example of contamination
Radioactive dust settling on skin
Duration of irradiation
Duration of irradiation
Lasts only for a short period of time
What is irradiation?
What is irradiation?
Source emits radiation which reaches an object
Does irradiation make objects radioactive?
Does irradiation make objects radioactive?
No
Example of irradiation
Example of irradiation
Radioactive dust emitting beta radiation to skin
Why are medical items irradiated?
Why are medical items irradiated?
To kill bacteria on their surface
Do irradiated medical items become radioactive?
Do irradiated medical items become radioactive?
No
What must scientific reports be?
What must scientific reports be?
Peer-reviewed
Why is peer review essential for radiation studies?
Why is peer review essential for radiation studies?
Wrong measurements could cause incorrect safety levels & deaths