The sotfware is certanly capable of dealing with fluorescence and tranmission equally. You need tomake sure to import your data correctly into Athena: http://cars9.uchicago.edu/~ravel/software/doc/Athena/html/import/columns.htm... Regards, B -- Bruce Ravel ----------------------------------- bravel@bnl.gov National Institute of Standards and Technology Synchrotron Methods Group at Brookhaven National Laboratory Building 535A Upton NY, 11973 My homepage: http://cars9.uchicago.edu/~ravel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/ -----Original Message----- From: ifeffit-bounces@millenia.cars.aps.anl.gov on behalf of Sent: Mon 3/24/2008 7:15 AM To: ifeffit@millenia.cars.aps.anl.gov Subject: [Ifeffit] X-ray absorption measurements for Fluorescence detection. Dear Authors: The Athena, Artemis fitting programs is suitable for X-ray absorption measurements for Fluorescence detection mode? Because transmission have different physical describing with Fluorescence mode. Or maybe you have more descriptions about Fluorescense detection mode fitting about X-ray absorption measurement? Thanks for your time and help! Pei