December 2025 - Ifeffit - millenia.cars.aps.anl.gov

Problem installing Demeter
by Amy Shober 30 May '26

30 May '26

Hi all, I had to have my IT folks completely wipe my computer. They updated me to Windows 11 enterprise edition. I previously had Demeter installed so that I could use Athena. We were able to download the Demeter Version 0.9.26 installation package. However, it did not actually install the programs on my computer. And in the folder DemeterPerl, the only application I can launch is "unisn000". I see an icon for Demeter (ICO file) but when I click it, I only see a little thumbnail image. I'm guessing this is an icon file. Can someone help? Amy -- Amy L. Shober, Ph.D. Professor and Extension Specialist - Nutrient Management and Environmental Quality *Associate Chair - Department of Plant and Soil Sciences* 531 South College Avenue 152 Townsend Hall University of Delaware Newark, DE 19716 Phone: (302) 831-2146 Fax: (302) 831-0605 Email: ashober(a)udel.edu Website: https://urldefense.us/v3/__http://sites.udel.edu/canr-nmeq/__;!!G_uCfscf7eW…

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Query: abnormal FT-EXAFS peak at ~1.1A
by Huaming 24 Dec '25

24 Dec '25

Hello! I faced an issue with fitting of FT-EXAFS data (Rh@zeolite) with Artemis. There is one distinct peak located at ~1.1 angstron. The intensity is comparable to the nearby peak of Rh-O scattering. I wonder the peak (~1.1A) is a real peak or just noise. Raw data is enclosed. Another question is why S02 can be negative in data fitting with Artemis. Cheers, Huaming

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There are some issues with fitting FeNi DAC parameters using fdmnes.
by 1000566384＠smail.shnu.edu.cn 20 Dec '25

20 Dec '25

Hello! I am a graduate student. When using Fdmnes to fit FeNi DAC, I found that the fitted peaks do not match the experimental peaks very well. The main issue is that the two transition peaks in the experiment merge into a single peak in the fitted curve. First of all, thank you very much for your help. If you could help me adjust the parameters, I would be happy to send you the experimental data for you to take a look. Best of luck!

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Help for checking my EXAFS fitting
by cbmeherrem＠gmail.com 10 Dec '25

10 Dec '25

Hello, I am a graduate student working on Ge and Sn K-edge XAS measurements. I have performed some EXAFS fitting in Artemis, but I am not fully confident that my analysis is correct since my sample is a bit complex. I was wondering if anyone with expertise in EXAFS fitting might be willing to look over my results. I would be happy to email my fitting files and analyzed data if someone is available to provide guidance. Thank you very much for your time and help. Best Maharram

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