The thickness (twice 1. moment) of the PB calculates to 647.7497242176164 A. The profile description is:
Parameter:    'scale'    , value=1.01296 +/- 0.0029, bounds=[0.8, 1.5]
Parameter:     'bkg'     , value=2.10987e-06 +/- 1.51e-07, bounds=[1e-08, 5e-05]
Parameter:'sio2 - volfrac solvent', value=0.099994 +/- 0.00192, bounds=[0.0, 0.1]
Parameter:'polymer - thick', value=33.3133 +/- 1.07 , bounds=[10.0, 50.0]
Parameter:'polymer - rough', value=0.0955382 +/- 0.0535, bounds=[0.05, 6.0]
Parameter:'polymer - volfrac solvent', value=0.115102 +/- 0.00395, bounds=[0.0, 0.4]
Parameter:'freeform vfp - adsorbed amount', value=521.104 +/- 1.19 , bounds=[424.8, 561.0]
Parameter:'freeform vfp - spline dzf[0]', value=0.00124788 +/- 0.000295, bounds=[0.001, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[1]', value=0.197545 +/- 0.0328, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[2]', value=0.240916 +/- 0.0252, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[3]', value=0.025554 +/- 0.00398, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[4]', value=0.0108055 +/- 0.00364, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[5]', value=0.0226018 +/- 0.00419, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline vff[0]', value=0.916051 +/- 0.00343, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[1]', value=0.98619 +/- 0.00338, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[2]', value=0.861619 +/- 0.0115, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[3]', value=0.681217 +/- 0.0789, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[4]', value=0.516651 +/- 0.108, bounds=[0.01, 1.0]
Parameter:'solvent - sld', value=6.06666 +/- 0.00256, bounds=[6.0, 6.4]
