Fig. 1.

Plot of the function ϕ (λ)/const. vs λ for the reactor equilibrium temperature of 350 K. The product ϕ(λ)dλ gives the number of thermal neutrons of wavelength between λ and λ + dλ emerging from an in-pile collimator in one second.

Plot of the function ϕ (λ)/const. vs λ for the reactor equilibrium temperature of 350 K. The product ϕ(λ)dλ gives the number of thermal neutrons of wavelength between λ and λ + dλ emerging from an in-pile collimator in one second.