SYSTEMS of UNITS & RADIOLOGIC UNITS. SYSTEM OF UNITS SI MKS CGS BRITISH.
Units of Radioactivity.pdf
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10/14/2014 Units of Radioactivity http://www2.lbl.gov/abc/wallchart/chapters/03/6.html 1/1 Units of Radioactivity The number of decays per second, or activity, from a sample of radioactive nuclei is measured in becquerel (Bq), after Henri Becquerel. One decay per second equals one becquerel. An older unit is the curie, named after Pierre and Marie Curie. One curie is approximately the activity of 1 gram of radium and equals (exactly) 3.7 x 10 10 becquerel. The activity depends only on the number of decays per second, not on the type of decay, the energy of the decay products, or the biological effects of the radiation (see Chapter 15). last updated: August 9, 2000 webmaster
Transcript of Units of Radioactivity.pdf
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10/14/2014 Units of Radioactivity
http://www2.lbl.gov/abc/wallchart/chapters/03/6.html 1/1
Units of RadioactivityThe number of decays per second, or activity, from a sampleof radioactive nuclei is measured in becquerel (Bq), afterHenri Becquerel. One decay per second equals one becquerel.
An older unit is the curie, named after Pierre and Marie Curie.One curie is approximately the activity of 1 gram of radiumand equals (exactly) 3.7 x 1010 becquerel. The activitydepends only on the number of decays per second, not onthe type of decay, the energy of the decay products, or thebiological effects of the radiation (see Chapter 15).
last updated: August 9, 2000 webmaster
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