Some Transient Phenomena in Thermalization I. Theory

We discuss the behaviour of the asymptotic thermal flux in the “pulsed” and “exponential” experiments. In particular, we give a pair of theorems which bear upon the possibility of measuring λ₀ and L in certain cases. One shows that all λ_i(B²) disappear at sufficiently large B², the other that all space decay constants disappear at sufficiently large concentration of absorber.