The thickness (twice 1. moment) of the PB calculates to 572.1502949875336 A. The profile description is:
Parameter:    'scale'    , value=1.06631 +/- 0.00218, bounds=[0.8, 1.5]
Parameter:     'bkg'     , value=9.63684e-07 +/- 1.79e-07, bounds=[1e-08, 5e-05]
Parameter:'sio2 - volfrac solvent', value=0.0999434 +/- 0.00687, bounds=[0.0, 0.1]
Parameter:'polymer - thick', value=22.1617 +/- 2.81 , bounds=[1.0, 50.0]
Parameter:'polymer - rough', value=3.24756 +/- 1.36 , bounds=[0.05, 6.0]
Parameter:'polymer - volfrac solvent', value=0.313729 +/- 0.0111, bounds=[0.0, 0.4]
Parameter:'freeform vfp - spline dzf[0]', value=0.00260388 +/- 0.00138, bounds=[0.001, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[1]', value=0.0383796 +/- 0.00642, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[2]', value=0.0894434 +/- 0.0147, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[3]', value=0.0345181 +/- 0.00506, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[4]', value=0.0610572 +/- 0.00916, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[5]', value=0.236378 +/- 0.0243, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline vff[0]', value=0.656634 +/- 0.00985, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[1]', value=0.998383 +/- 0.00665, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[2]', value=0.377657 +/- 0.0162, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[3]', value=0.4501 +/- 0.0329, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[4]', value=0.198501 +/- 0.0177, bounds=[0.01, 1.0]
Parameter:'solvent - sld', value=6.24378 +/- 0.00198, bounds=[6.0, 6.4]
