Fluence 2
Fluence 2 :
Nuclear Energy and Nuclear Disasters. A measure of the strength of a radiation field. Commonly used without qualification to mean particle fluence. Energy Fluence,Ψ: A measure of the energy density of a radiation field, defined as: Ψ = dR da where dR is the radiation energy incident on a sphere of cross-sectional area da. The energy fluence rate is d Ψ denoted by a lower case Ψ. dt See: ICRP Publication 51. Particle Fluence, Φ: A measure of the density of particles in a radiation field, defined as: Φ = dN da where dN is the number of particles incident on a sphere of cross-sectional area da. The particle fluence rate is d Φ denoted by a lower case Φ . dt See: ICRP Publication 51
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