[Ifeffit] Calculation of metal concentration (and hence density) from Edge Jump

[Bruce Ravel]

This might help: https://doi.org/10.1107/S1600577514001283

Note that we measured a sequence of standards of known thickness and 
concentration /prior/ to the rest of the experiment, so the methodology 
in that paper might not be useful after the fact in the absence of that 
prep work.

B

On 02/20/2017 10:19 PM, pushkar shejwalkar wrote:
> Dear All,
>     First of all, is it possible to calculate the concentration of metal
> (loading, therefore) from just the edge jump? Is there a simpler
> equation like knowing the Flux values or some basic instrumental
> information we can calculate the concentration term using Io and It
> values of beamline (the simplest form of Beer-lambert law)? if so what
> formula should we use.
> I searched in the mailing list archive and have found one such archive
> but it discusses how to use calculation to find out how much sample
> would be needed to get the edge jump. I am rather interested in the
> reverse way. I have an experimental edge jump and want to calculate (if
> possible with as much accuracy as possible) the concentration of metal.
> I know with only edge jump it will be difficult and XRF will be a better
> and more reliable way. But for better understanding and cross checking
> between different samples, I wish to do such calculations.
> Can anyone guide me to the right direction and equations to do such
> calculations?
> Thank you all in advance
> Warmest regards
> Pushkar
>
> --
> Best Regards,
> Pushkar Shejwalkar.
> Post-doctoral -Researcher,
> Tokyo Engineering University,
> Tokyo-to
> Japan
>
>
>
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-- 
  Bruce Ravel  ------------------------------------ bravel at bnl.gov

  National Institute of Standards and Technology
  Synchrotron Science Group at NSLS-II
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