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Created page with "100px|frameless|right|link=ICRP Glossary The concentration of short-lived radon or thoron progeny in air in terms of the alpha energy emitted duri..."
[[File:Glossary Icon-2.png|100px|frameless|right|link=ICRP Glossary]]
The concentration of short-lived radon or thoron progeny in air in terms of the alpha energy emitted during complete decay from radon-222 progeny to lead-210, or from radon-220 progeny to lead-208, of any mixture of short-lived radon-222 or radon-220 in a unit volume of air. The SI unit for potential alpha energy concentration is J m<sup>-3</sup>.
[[ICRP Publication 115]], 2010
'''Return to [[ICRP Glossary|Glossary]]'''
The concentration of short-lived radon or thoron progeny in air in terms of the alpha energy emitted during complete decay from radon-222 progeny to lead-210, or from radon-220 progeny to lead-208, of any mixture of short-lived radon-222 or radon-220 in a unit volume of air. The SI unit for potential alpha energy concentration is J m<sup>-3</sup>.
[[ICRP Publication 115]], 2010
'''Return to [[ICRP Glossary|Glossary]]'''
