The thickness (twice 1. moment) of the PB calculates to 1128.496943561303 A. The profile description is:
Parameter:    'scale'    , value=1.07241 +/- 0.00257, bounds=[0.8, 1.5]
Parameter:     'bkg'     , value=1.61588e-06 +/- 1.13e-07, bounds=[1e-08, 5e-05]
Parameter:'sio2 - volfrac solvent', value=0.093198 +/- 0.0037, bounds=[0.0, 0.1]
Parameter:'polymer - thick', value=8.07854 +/- 1.75 , bounds=[1.0, 50.0]
Parameter:'polymer - rough', value=0.0776204 +/- 0.0177, bounds=[0.05, 6.0]
Parameter:'polymer - volfrac solvent', value=0.12932 +/- 0.00546, bounds=[0.0, 0.4]
Parameter:'freeform vfp - spline dzf[0]', value=0.0111818 +/- 0.00285, bounds=[0.001, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[1]', value=0.115849 +/- 0.0344, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[2]', value=0.113599 +/- 0.0283, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[3]', value=0.0967984 +/- 0.027, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[4]', value=0.033727 +/- 0.00882, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[5]', value=0.127272 +/- 0.0307, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline vff[0]', value=0.774642 +/- 0.00782, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[1]', value=0.540619 +/- 0.0103, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[2]', value=0.99121 +/- 0.00334, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[3]', value=0.193641 +/- 0.0135, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[4]', value=0.342034 +/- 0.0261, bounds=[0.01, 1.0]
Parameter:'solvent - sld', value=6.18159 +/- 0.0018, bounds=[6.0, 6.4]
