The thickness (twice 1. moment) of the PB calculates to 351.1878852505199 A. The profile description is:
Parameter:    'scale'    , value=1.02995 +/- 0.00196, bounds=[0.8, 1.5]
Parameter:     'bkg'     , value=1.71172e-06 +/- 1.56e-07, bounds=[1e-08, 5e-05]
Parameter:'sio2 - volfrac solvent', value=0.0972721 +/- 0.00167, bounds=[0.0, 0.1]
Parameter:'polymer - thick', value=35.2666  +/- 1.7 , bounds=[10.0, 50.0]
Parameter:'polymer - rough', value=0.135252 +/- 0.0259, bounds=[0.05, 6.0]
Parameter:'polymer - volfrac solvent', value=0.227573 +/- 0.00371, bounds=[0.0, 0.4]
Parameter:'freeform vfp - adsorbed amount', value=234.9 +/- 0.996, bounds=[196.7, 301.0]
Parameter:'freeform vfp - spline dzf[0]', value=0.00429036 +/- 0.0032, bounds=[0.001, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[1]', value=0.219997 +/- 0.019, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[2]', value=0.0594948 +/- 0.0129, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[3]', value=0.0123115 +/- 0.000763, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[4]', value=0.0469806 +/- 0.00625, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[5]', value=0.241732 +/- 0.022, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline vff[0]', value=0.85408 +/- 0.00303, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[1]', value=0.991432 +/- 0.00175, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[2]', value=0.526585 +/- 0.132, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[3]', value=0.621005 +/- 0.0379, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[4]', value=0.187971 +/- 0.106, bounds=[0.01, 1.0]
Parameter:'solvent - sld', value=6.08661 +/- 0.00119, bounds=[6.0, 6.4]
