SAXNS Cross-Chi-squared Calculator

This server estimates the cross-Chi2 metric between two SAXS data sets.
This metric depends on the data being accurately Scaled. Remove low-q data from poorly matched data for a better fit.
Note: removing too much low-q data from the Fitting process may result in a worse fit.

Select the First Saxs Data file:

Select the Second Saxs Data file:

Plot size (png)

Minimum Q (Å-1):
(Remove any parasitic scattering from beamstop)
Maximum Q (Å-1)
(Limit to useful data range - do not include random noise from high-q)

Your e-mail: Fitting Parameters:
(Remove poorly matched data - *use caution)

Calculate XC: