Dear Meko, Thanks for reaching out to us for your question. Could you please send some data or the sasview project to test and reproduce the behaviour. All the best Dirk Dirk Honecker dirk.honecker@stfc.ac.uk<mailto:dirk.honecker@stfc.ac.uk> ISIS Pulsed Neutron and Muon Source STFC Rutherford Appleton Laboratory | Harwell Campus Office R3 1.41 | Didcot | OX11 0QX | United Kingdom Mobile: +44 7738 260880 | Tel: +44 1235 567112 ________________________________ From: users <users-bounces@lists.sasview.org> on behalf of via users <users@lists.sasview.org> Sent: 05 November 2025 4:39 PM To: users@sasview.org <users@sasview.org> Subject: [SasView Users] help troubleshooting the low scattering intensity saxs data Hi I need help from SASView experts. I started using it to fit my liposome saxs data just today for the first time. My scattering intensity data are very low ranging from 10^-3 to 10^-1. So, when I use lamellar_hg fit for my unilamellar popc vesicles I get ginormous chi squared values like 10^12. Please help me to improve my fitting. Thank you! Best Meko