----- Original Message ----- From: 沛昌 蔡 To: ifeffit@millenia.cars.aps.anl.gov Sent: Wednesday, September 12, 2007 7:22 PM Subject: [Ifeffit] Double picks on Near Edge region. To whom it may concern, Dear Prof.; Here have some questions about Zn doped LiNbO3 single crsystal EXAFS fitting problem, we did the similar EXAFS absorption spectra as you can see the attach reference paper Fig 7, that shows double picks on Near Edge region, and our questions are, (1) Base on your great knowledge, how comes about these two picks, and is it normal? (2) On Artemis program R-figure display, we can find a great pick appeared in 0~1 angstrom range (k range=1~12), but we find this pick disappeared under (k range=2~12) parameter choosing ,so is it relation to question (1)? (3) If we want to cut near edge contribution, how should we deal with these double picks? choose the rear EXAFS spectrum (aviod these two picks)? Or using Athena background removal it? Thanks for your time and helping. Pei-chang Tsai 2007/09/12 設定安全圖章，保護您的 Yahoo!奇摩帳號不被駭客盜用！ -------------------------------------------------------------------------------- _______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit