Difference between revisions of "Activity"
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===About Activity=== | ===About Activity=== | ||
| − | *[[Measure]]d in [[ | + | *[[Measure]]d in [[becquerel]]s (Bq), where 1 Bq equals one disintegration per [[second]]. |
*Indicates the rate at which a sample of [[radioactive]] [[material]] [[Decay (Physics)|decays]]. | *Indicates the rate at which a sample of [[radioactive]] [[material]] [[Decay (Physics)|decays]]. | ||
*Higher [[activity]] means more frequent emissions of [[radiation]]. | *Higher [[activity]] means more frequent emissions of [[radiation]]. | ||
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===Examples=== | ===Examples=== | ||
*Medical tracers have high [[activity]] to ensure they [[emit]] detectable [[radiation]] within a short [[time]]. | *Medical tracers have high [[activity]] to ensure they [[emit]] detectable [[radiation]] within a short [[time]]. | ||
*[[Radon]] detectors [[measure]] the [[activity]] of [[radon]] gas in homes to assess safety. | *[[Radon]] detectors [[measure]] the [[activity]] of [[radon]] gas in homes to assess safety. | ||
Revision as of 16:59, 17 May 2024
Key Stage 5
Meaning
In radioactivity, activity is the number of disintegrations per second of a radioactive isotope.
About Activity
- Measured in becquerels (Bq), where 1 Bq equals one disintegration per second.
- Indicates the rate at which a sample of radioactive material decays.
- Higher activity means more frequent emissions of radiation.