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Becquerel

Becquerel

Published: April 20, 2010, 1:14 pm
Updated: April 20, 2010, 1:14 pm
Lead Author: Cutler Cleveland
Topics: Units Energy Nuclear Energy
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This article has been reviewed by the following Topic Editor: Tom Lawrence

Definition

SI multiples of becquerel
Multiple Name Symbol Multiple Name Symbol
100 becquerel Bq      
101 decabecquerel daBq 10–1 decibecquerel dBq
102 hectobecquerel hBq 10–2 centibecquerel cBq
103 kilobecquerel kBq 10–3 millibecquerel mBq
106 megabecquerel MBq 10–6 microbecquerel µBq
109 gigabecquerel GBq 10–9 nanobecquerel nBq
1012 terabecquerel TBq 10–12 picobecquerel pBq
1015 petabecquerel PBq 10–15 femtobecquerel fBq
1018 exabecquerel EBq 10–18 attobecquerel aBq
1021 zettabecquerel ZBq 10–21 zeptobecquerel zBq
1024 yottabecquerel YBq 10–24 yoctobecquerel yBq
The becquerel(symbolBq') is the SI derived unit of radioactivity in the International System of Units (SI), and equal to one disintegration or nuclear transformation per second. It is therefore equivalent to s-1. The older unit of radioactivity was the curie (Ci), defined as 3.7×1010 becquerels or 37 GBq.

History

The becquerel is named after Antoine Henri Becquerel, the French physicist credited with the discovery of radioactivity.

Further Reading

Citation

Cutler Cleveland (Lead Author);Tom Lawrence (Topic Editor) "Becquerel". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth April 20, 2010; Last revised Date April 20, 2010; Retrieved February 9, 2012 <http://www.eoearth.org/article/Becquerel>

The Author

Cutler Cleveland Editor-in-Chief The Encyclopedia of Earth Cutler J. Cleveland is the founding Editor-in-Chief of the Encyclopedia of Earth. Dr. Cleveland is currently a Professor in the Department of Geography and Environment at Boston University, with joint appointments in the Center for Energy and Environmental Studies and the Pardee Center for the Study of the Longer Range Future. He also is a Senior Fellow at the National Council for Science and the Environment in Washington D.C. Dr. Cleveland is als ... (Full Bio)

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