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Created page with "==Key Stage 4== ===Meaning=== '''Radiation dose''' is the energy absorbed by living tissue from a source of Ionising Radiation|ionising radiatio..."
==Key Stage 4==
===Meaning===
'''Radiation dose''' is the [[energy]] [[Absorb (Physics)|absorbed]] by living [[tissue]] from a source of [[Ionising Radiation|ionising radiation]].
===About Radiation Dose===
: The [[SI Unit]] of '''radiation dose''' is the [[Sievert]] (Sv).
: The [[magnitude]] of a '''radiation dose''' is related to the harmful effects of [[Ionising Radiation|ionising radiation]]. 1 [[sievert]] represents a 5.5% risk of causing [[cancer]].
: There are sources of [[Ionising Radiation|ionising radiation]] everywhere and [[human]]s receive a '''radiation dose''' from this so called [[Background Radiation|background radiation]].
: The level of [[Background Radiation|background radiation]] a person is exposed to depends on a number of factors including their diet and where they spend their time living and working.
: The yearly '''radiation dose''' of pilots is likely to be higher than [[Mean Average|average]] because at high altitude people are exposed to more [[Cosmic Ray|cosmic rays]].
: The yearly '''radiation dose''' of miners is likely to be higher than [[Mean Average|average]] because many rocks are sources of [[Ionising Radiation|ionising radiation]].
: The yearly '''radiation dose''' of hospital workers is likely to be higher than [[Mean Average|average]] because sources of [[Ionising Radiation|ionising radiation]] are used in medical imaging.
: The effects of a '''radiation dose''' range from the severe such as instant death due to a '''dose''' of several [[Sievert]]s at once through radiation sickness and [[cancer]].
: '''Radiation dose''' has a cumulative effect over a lifetime so for people in jobs which expose them to a higher '''dose''' is it important to limit their exposure as much as possible. This is done using protective clothing, barriers and limiting their time exposed to the [[Ionising Radiation|ionising radiation]].
===Meaning===
'''Radiation dose''' is the [[energy]] [[Absorb (Physics)|absorbed]] by living [[tissue]] from a source of [[Ionising Radiation|ionising radiation]].
===About Radiation Dose===
: The [[SI Unit]] of '''radiation dose''' is the [[Sievert]] (Sv).
: The [[magnitude]] of a '''radiation dose''' is related to the harmful effects of [[Ionising Radiation|ionising radiation]]. 1 [[sievert]] represents a 5.5% risk of causing [[cancer]].
: There are sources of [[Ionising Radiation|ionising radiation]] everywhere and [[human]]s receive a '''radiation dose''' from this so called [[Background Radiation|background radiation]].
: The level of [[Background Radiation|background radiation]] a person is exposed to depends on a number of factors including their diet and where they spend their time living and working.
: The yearly '''radiation dose''' of pilots is likely to be higher than [[Mean Average|average]] because at high altitude people are exposed to more [[Cosmic Ray|cosmic rays]].
: The yearly '''radiation dose''' of miners is likely to be higher than [[Mean Average|average]] because many rocks are sources of [[Ionising Radiation|ionising radiation]].
: The yearly '''radiation dose''' of hospital workers is likely to be higher than [[Mean Average|average]] because sources of [[Ionising Radiation|ionising radiation]] are used in medical imaging.
: The effects of a '''radiation dose''' range from the severe such as instant death due to a '''dose''' of several [[Sievert]]s at once through radiation sickness and [[cancer]].
: '''Radiation dose''' has a cumulative effect over a lifetime so for people in jobs which expose them to a higher '''dose''' is it important to limit their exposure as much as possible. This is done using protective clothing, barriers and limiting their time exposed to the [[Ionising Radiation|ionising radiation]].