词条 | Median aerodynamic diameter |
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Activity median aerodynamic diameterIn the context of radiation protection, activity median aerodynamic diameter (AMAD) is the MAD for the airborne activity in a given aerosol. Internal dosimetry uses it as a means of simplifying the true distribution of aerodynamic diameters of a given aerosol.[1] Count median aerodynamic diameterCount median aerodynamic diameter (CMAD)[2] is only used rarely. Half of the particles (by count) of a given aerosol have the aerodynamic diameter smaller than the CMAD, and the other half larger. A similar quantity, count median (geometric) diameter (CMD) is more common. Mass median aerodynamic diameter{{stub section|date=January 2018}}Mass median aerodynamic diameter (MMAD) is the MAD for mass. References1. ^1 IAEA Safety Glossary 2. ^Lognormal conversion equations for common types of diameters 2 : Nuclear safety and security|Radioactive contamination |
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