Hi Kavya:

What you have are not glitches but shifts in the absolute absorption probably due to bubbles or droplets moving through the beam. You can tell these from crystal glitches because the glitches are sharp and occur at the same energy in every scan while these are likely to move around from scan to scan. In my experience, this kind of change in the spectrum is not correctable. Hopefully you have lots of scans and only some of them have these artifacts and can be thrown out.

Carlo

On Sun, Jul 16, 2023 at 10:00 PM Shailendra <kavyarachna1302@gmail.com> wrote:

Hi, IFEFFIT community,

I am Rachna, a Ph.D. student working on IrO2 based OER catalyst. I am a new XAS user. Recently, we recorded some XAS on amorphous IrO2 electrode samples however some of the samples show a dip in adsorption at high energy. The glitches are similar to the one in the attached photo. I am attaching the Athena file for the measurements too. I was wondering if there is a way to remove such glitches.
I would greatly appreciate any tips or tricks you may have for dealing with this situation.

Thanks,
Kavya Rachna
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Carlo U. Segre (he/him) -- Duchossois Leadership Professor of Physics

Professor of Materials Science & Engineering

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Illinois Institute of Technology

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