Yes I think that would be the plot. I currently haven’t been normalizing 
anything as I was just trying to see if I could get a rough draft. I haven’t 
done any background removal it was essentially just the raw data. As far as the 
features go I am not sure? I wasn’t trying to target a specific feature. The 
fluorescence was measured using a solid state detector but I’m not sure about 
the dead time. Is that information that is contained in xdi files? I wasn’t at 
this particular beam time so I have only the file to work off of.Thank you so 
much for the detailed response!-B

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On Thursday, February 16, 2023, 2:50 PM, Robert Gordon <ragor...@alumni.sfu.ca> 
wrote:

So your goal is to plot If/I0 versus time for a given energy in the XANES. Are 
you exporting normalised XANES or just If/I0?Are you doing background removal 
from the pre-edge?

Is another feature underlying this targeted feature also disappearing or 
changing? i.e. you are not watching a feature 
increase from zero but instead changing from one to another? ...or seeing a 
background increase as well?
Was the fluorescence measured using a solid state detector? Did the deadtime of 
the detector increase significantlyas the signal from the sample increased (and 
no deadtime correction applied) ?
-R.



On Thu, Feb 16, 2023 at 10:53 AM Roberta Candela <rjcan...@asu.edu> wrote:

Ha no worries! It would be Ifinal over time (to my vague understanding). I’m 
trying to show that the sample was saturated by looking above the fluorescence 
k-alpha line (or I guess it’s called the white line?) because the intensity 
should increase and then level off once it’s saturated. This is a xanes scan 
but we were doing fluorescence instead of transmission since it was a dilute 
sample. Did that answer the question? My apologies I’m very new and I’m sure im 
referring to things incorrectly. 


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On Thursday, February 16, 2023, 12:45 PM, Carlo Segre <se...@iit.edu> wrote:

Hi Robert:
What, exactly are you interested in plotting?  It is not quite clear from your 
message.  Is it the Io as a function of time during a scan?  Is it the XANES 
scans as a function of time for a reaction?
Carlo
On Thu, Feb 16, 2023 at 11:59 AM Roberta Candela <rjcan...@asu.edu> wrote:

Hi all, I am attempting to graph a simple plot of intensity vs time for some 
supplemental info on a paper (from XAFS data from beamtime). I thought it 
should be simple enough since I can export I0 and If from Athena and I know the 
run time and time per data point but I can’t get anything that looks remotely 
like the logarithmic graph it should be. Am I missing some big fundamental 
point for why this isn’t possible? My apologies if this is way too vague!/I 
feel like I’m missing something super obvious Thank you for your time!Sincerely 
-B


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-- 
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of Materials Science & EngineeringDirector, Center for Synchrotron Radiation 
Research and InstrumentationIllinois Institute of TechnologyVoice: 312.567.3498 
           Fax: 312.567.3494se...@iit.edu   http://phys.iit.edu/~segre   
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