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Porod exponent for SAS with slit-height/detector-width smearing

Select the Porod exponent (integer number), the full length/width of the rectangular-shaped beam-height or detector width (2*qy, symmetrically from -qy to +qy), and the qz-value of the SAS-curve. Note, the direction of qy is perpendicular to qz and that qy as well as qz must have the same units in either real or reciprocal space, respectively. The modified Porod-exponent due to slit/detector smearing will be calculated for the respective qz-value in the scattering curve.

Exponent (unsmeared) slit/width : qz-value :

Exponent (smeared):

Author: M.Kriechbaum, IBN (2012), e-mail: