The thickness (twice 1. moment) of the PB calculates to 527.7332157859946 A. The profile description is:
Parameter:    'scale'    , value=1.02331 +/- 0.00319, bounds=[0.8, 1.5]
Parameter:     'bkg'     , value=2.41796e-06 +/- 1.83e-07, bounds=[1e-08, 5e-05]
Parameter:'sio2 - volfrac solvent', value=0.0611748 +/- 0.0158, bounds=[0.0, 0.1]
Parameter:'polymer - thick', value=16.2921 +/- 2.79 , bounds=[10.0, 50.0]
Parameter:'polymer - rough', value=7.59482 +/- 0.54 , bounds=[0.05, 25.0]
Parameter:'polymer - volfrac solvent', value=0.149446 +/- 0.00709, bounds=[0.0, 0.4]
Parameter:'freeform vfp - adsorbed amount', value=379.169 +/- 4.44 , bounds=[345.6, 462.0]
Parameter:'freeform vfp - spline dzf[0]', value=0.0115481 +/- 0.00177, bounds=[0.001, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[1]', value=0.228148 +/- 0.00971, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[2]', value=0.0346117 +/- 0.00367, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[3]', value=0.0215544 +/- 0.00167, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[4]', value=0.0104486 +/- 0.00256, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[5]', value=0.0117807 +/- 0.00259, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline vff[0]', value=0.892721 +/- 0.00505, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[1]', value=0.807056 +/- 0.0106, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[2]', value=0.0106574 +/- 0.0162, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[3]', value=0.729713 +/- 0.0445, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[4]', value=0.408801 +/- 0.0776, bounds=[0.01, 1.0]
Parameter:'solvent - sld', value=6.1814 +/- 0.00306, bounds=[6.0, 6.4]
