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[SA_Scat] Sad news: Unexpected passing of Greg Beaucage

  • To: Small-Angle IUCR mailng list <[email protected]>
  • Subject: [SA_Scat] Sad news: Unexpected passing of Greg Beaucage
  • From: "Ilavsky, Jan via sa_scat" <[email protected]>
  • Date: Thu, 24 Jul 2025 01:58:38 +0000
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Dear SAS community,
I'm saddened to have to share with you that my dear friend and our valued colleague, Prof. Greg Beaucage, has passed unexpectedly and far too soon.
Many of you might associate his name with the popular Unified Fit model. Some of us were fortunate to work alongside him and call him a friend, collaborator, co-author, etc. His contributions to Small-angle scattering, particularly in the study of hierarchical structures, are profound and challenging to capture in this brief note.
We will honor his scientific legacy properly in the future.

Sincerely
Jan*****************************************************************Dr. Jan Ilavsky, physicistX-Ray Science DivisionAdvanced Photon SourceArgonne National Laboratory9700 S. Cass Avenue, bldg 433A002Lemont, IL 60439, USAPhone:             (630) 252-0866e-mail:  [email protected]<mailto:[email protected]>Home page<https://usaxs.xray.aps.anl.gov/staff/jan-ilavsky>, USAXS web page<https://usaxs.xray.aps.anl.gov/>Shipping Instructions<https://usaxs.xray.aps.anl.gov/documentation/shipping-instructions>Software: Indra web page<https://usaxs.xray.aps.anl.gov/software/indra> , Irena web page<https://usaxs.xray.aps.anl.gov/software/irena>, Nika web page<https://usaxs.xray.aps.anl.gov/software/nika>, Youtube channel<https://www.youtube.com/c/IrenaandNikaSASsoftware>,  Irena/Nika forum<https://gitter.im/SAXS_IgorCode/Lobby>APS small-angle page<https://small-angle.aps.anl.gov/>*****************************************************************Suggestion No1 to users:If the model is incompatible with your data, it is not the data you need to change.The fact, that A model fits your data, it is NOT proof that it is THE appropriate model.
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