Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
7 Cards in this Set
- Front
- Back
|
What happens when radiation enters the body?
|
It collides with molecules in your cells. These collisions ionise which damages and destroys the molecules.
Can cause mutations in cells that divide uncontrollably, causing cancer. |
|
|
How can radiation treat cancer?
|
high dose of gamma directed at tumour.
|
|
|
What is low level nuclear waste?
|
slightly radioactive. can be disposed off in secure landfill.
|
|
|
What is high-level radioactive waste?
|
stays radioactive for 10s - 1000 of years. Sealed in glass blocks and metal canisters. buried deep underground.
|
|
|
Where can you bury high-level waste?
|
Geologically stable areas (no earthquakes). Not near groundwater (plants, soil, drink water)
|
|
|
How can you minimise exposure to radiation when working with it?
|
Never allow skin contact - always hold with tongs and at arms length.
Keep source pointed away from body. store in a sealed box. |
|
|
What do people that work with radioactive materials regularly need to do?
|
lead aprons/ lead screens.
full protective suits - prevent particles from being inhaled or under skin/ fingernails. remote robotic arms. |
