Fluence
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The quotient of [math]dN[/math] by [math]da[/math], where [math]dN[/math] is the number of particles incident on a sphere of cross-sectional area [math]da[/math], thus:
[math]\Phi = \frac{dN}{da}[/math]
The unit of fluence is m-2.
(Adapted from ICRP Publication 116, 2010)
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from ICRP Publication 103, 2007; ICRP Publication 110, 2008; ICRP Publication 119, 2012
The quotient of [math]dN[/math] by [math]da[/math], where [math]dN[/math] is the number of particles incident on a small sphere of cross-sectional area [math]da[/math], thus:
[math]\Phi = \frac{dN}{da}[/math]
