An isotropic injection model
Model fit to the observation (symbols) under the hypothesis of isotropic injection gives no combination of (n10, τ) that can reproduce (Γ, S) simultaneously.
n10 – trap density
 τ - injection timescale
When is isotropic, isotropic remain as isotropic, and major control is through the trap density (higher faster die) and injection time (life/birth).