The thickness (twice 1. moment) of the PB calculates to 974.1507200155411 A. The profile description is:
Parameter:    'scale'    , value=0.888698 +/- 0.00195, bounds=[0.8, 1.5]
Parameter:     'bkg'     , value=4.9782e-07 +/- 2.41e-07, bounds=[1e-08, 5e-05]
Parameter:'sio2 - volfrac solvent', value=0.079605 +/- 0.0314, bounds=[0.0, 0.1]
Parameter:'polymer - thick', value=17.383 +/- 7.78 , bounds=[1.0, 50.0]
Parameter:'polymer - rough', value=4.52855 +/- 1.92 , bounds=[0.05, 6.0]
Parameter:'polymer - volfrac solvent', value=0.260851 +/- 0.028, bounds=[0.0, 0.4]
Parameter:'freeform vfp - spline dzf[0]', value=0.00640389 +/- 0.00502, bounds=[0.001, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[1]', value=0.169242 +/- 0.0222, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[2]', value=0.114829 +/- 0.0309, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[3]', value=0.0302211 +/- 0.0323, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[4]', value=0.217626 +/- 0.0217, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline dzf[5]', value=0.114978 +/- 0.0147, bounds=[0.01, 0.24285714285714285]
Parameter:'freeform vfp - spline vff[0]', value=0.638239 +/- 0.0277, bounds=[0.35, 1.0]
Parameter:'freeform vfp - spline vff[1]', value=0.77227 +/- 0.0484, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[2]', value=0.913342 +/- 0.0599, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[3]', value=0.953522 +/- 0.0735, bounds=[0.01, 1.0]
Parameter:'freeform vfp - spline vff[4]', value=0.134567 +/- 0.0124, bounds=[0.01, 1.0]
Parameter:'solvent - sld', value=6.22653 +/- 0.00147, bounds=[6.0, 6.4]
