Difference between revisions of "Nuclear Waste"
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==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
| + | [[File:IonisingRadiationSymbol.png|right|300px|thumb|The [[hazard]] symbol found on containers of [[Nuclear Waste|nuclear waste]].]] | ||
'''Nuclear waste''' is the [[radioactive]] [[material]] produced in [[Nuclear Reaction|nuclear reactions]]. | '''Nuclear waste''' is the [[radioactive]] [[material]] produced in [[Nuclear Reaction|nuclear reactions]]. | ||
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: '''Nuclear waste''' is produced in [[Nuclear Fission Reactor|nuclear fission reactors]] and must be disposed of safely to prevent [[Radioactive Contamination|contamination]] of the [[environment]] and [[irradiation]] of living [[organism]]s. | : '''Nuclear waste''' is produced in [[Nuclear Fission Reactor|nuclear fission reactors]] and must be disposed of safely to prevent [[Radioactive Contamination|contamination]] of the [[environment]] and [[irradiation]] of living [[organism]]s. | ||
: There are three so called 'levels' of [[Nuclear Waste|nuclear waste]]: | : There are three so called 'levels' of [[Nuclear Waste|nuclear waste]]: | ||
| − | :*[[Low Level Nuclear Waste]] - '''Waste''' with a | + | :*[[Low Level Nuclear Waste]] - '''Waste''' with a long [[Half Life|half life]] but a low level of [[radioactivity]] so does not require shielding or cooling. |
| − | :*[[Intermediate Level Nuclear Waste]] - '''Waste''' with a | + | :*[[Intermediate Level Nuclear Waste]] - '''Waste''' with a long [[Half Life|half life]] and a medium level of [[radioactivity]] so it requires shielding, but does not require cooling. |
| − | :*[[High Level Nuclear Waste]] - '''Waste''' | + | :*[[High Level Nuclear Waste]] - '''Waste''' which extremely [[radioactive]] but will not remain so for more than a few decades due to a short [[Half Life|half life]]. After around 50 years this becomes [[Intermediate Level Nuclear Waste]]. It requires shielding and cooling to prevent it heating up so much that [[Melting|melts]] or catches fire. |
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| + | ===References=== | ||
| + | ====AQA==== | ||
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| + | :[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Nuclear waste, page 108, GCSE Physics; Third Edition, Oxford University Press, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac342 ''Nuclear waste, page 21, GCSE Physics; The Revision Guide, CGP, AQA ''] | ||
Latest revision as of 16:12, 9 January 2020
Key Stage 4
Meaning
Nuclear waste is the radioactive material produced in nuclear reactions.
About Nuclear Waste
- Nuclear waste emits ionising radiation and can cause irradiation of tissue or can contaminate other materials.
- Nuclear waste is produced in nuclear fission reactors and must be disposed of safely to prevent contamination of the environment and irradiation of living organisms.
- There are three so called 'levels' of nuclear waste:
- Low Level Nuclear Waste - Waste with a long half life but a low level of radioactivity so does not require shielding or cooling.
- Intermediate Level Nuclear Waste - Waste with a long half life and a medium level of radioactivity so it requires shielding, but does not require cooling.
- High Level Nuclear Waste - Waste which extremely radioactive but will not remain so for more than a few decades due to a short half life. After around 50 years this becomes Intermediate Level Nuclear Waste. It requires shielding and cooling to prevent it heating up so much that melts or catches fire.