FIGURE 2.

Difference spectra of BLA in the folded (a) and the unfolded (b) state. The number of scattered neutrons is given as a function of energy transfer (here for sample at T = 30°C and Q = 1.6 Å⁻¹). The experimental data (symbols) were fitted by a total scattering function (thick solid line) which includes elastic scattering having (small) energy transfer values which cannot be resolved by the resolution function (Γ_res = 120 μeV (fwhm); dashed line), quasielastic scattering (shaded area) which is described by a Lorentzian (width = 150 ± 10 μev (hwhm)), and a constant background (not shown here). The lower part (c) of this figure shows the Q dependence of A₀ (symbols) and the fitted Q dependence according to the diffusion inside a sphere model (solid lines).