User:Ktraze/Air kerma rate

Air Kerma Rate is the Kerma rate calculated using the (μ/ρ) value for air and is measured in Gy per unit time (Gy/hr).

=Kerma=

Kerma is the kinetic energy absorbed per unit mass and is associated only with indirectly ionizing (uncharged) radiation (photons, neutrons, fast neutrons). Kerma as a replacement quantity for absorbed dose when the absorbed dose is difficult to calculate due to material properties or source fluence where:

K = {number of interactions per unit mass}*{energy imparted per interaction} K =EΦ (f(E)μ(E))/ρ

Kerma Rate is dependent on flux, φ, as opposed to fluence, Φ.

Kerma Rate for Photons
(K_photon ) ̇=Eφ(1.602*〖10〗^(-10)) (μ_tr (E))/ρ

Kerma Rate for Fast Neutrons
(K_neutron ) ̇=Eφ(1.602*〖10〗^(-10)) (〖f_s (E)μ〗_s (E))/ρ