Re: [Ifeffit] calibration/aligment...2

Hi Matt and Scott, First, thank you so much for replying to my questions. I realised that I should have been a bit more accurate on the type of experiments I am doing. To start with, I am doing electrochemistry combined with EXAFS. I am using an integrated electrolysis/EXAFS cell. Our experiments are as follow: in the case of this experiment in particular, we have a solution of ruthenium-based compound that we flow through a channel through which the beam passes and that we call "reference". we record let's say 6 spectra in a row (we use a flow in order to avoid beam damage on our sample).we didn't do any reference spectra (if you mean running a scan of a Ru foil before starting the actual experiment). then, we make up a new solution but this time we electrolysed the solution (by applying a potential) in order to get the cationic produced species. (the obtained spectra will therefore be a mixture of the neutral and the cationic species). and we record as well a set of 6 spectra. Here is what I did and what I was wondering if it was the right thing to do: I have considered the first spectra of the first set of scans as the reference for calibration/alignment. is it ok? Thus, I am wondering if when I process the second set of data (electrolysed solution), which spectra I should take as a starting point for calibrating/aligning my second series of scans: the one I used for the first serie or the first of the second set of scans? I hope this is clear... Thanks again for your help, Ornella

From: ifeffit-request@millenia.cars.aps.anl.gov Subject: Ifeffit Digest, Vol 92, Issue 11 To: ifeffit@millenia.cars.aps.anl.gov Date: Thu, 14 Oct 2010 12:00:01 -0500

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Today's Topics:

1. MPSE (Mehmet Kaya) 2. calibration/alignment (ornella smila castro) 3. Re: calibration/alignment (Scott Calvin) 4. Re: calibration/alignment (Matt Newville) 5. Re: calibration/alignment (Scott Calvin)

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Message: 1 Date: Wed, 13 Oct 2010 12:23:06 +0200 From: "Mehmet Kaya" To: Subject: [Ifeffit] MPSE Message-ID: <000401cb6ac0$a110d0d0$e3327270$@kaya@uni-due.de> Content-Type: text/plain; charset="us-ascii"

Dear all,

i want to run FEFF with the many pole self energy MPSE. In the documentation to FEFF9 is written that I have to use the formula detailed in 'EpsInvFormula.ps' to calculate the optical constants.

Where can I get this file?

Many thanks

Mehmet from University Duisburg-Essen in Germany