[Ifeffit] Is good EXAFS data possible with 0.01 transmission coefficient

[Damon Turney]

Hi IFEFFIT community,

I will make measurements soon at Brookhaven's NSLS to do EXAFS, and my
sample is a powder mixture of carbon powder, MnO2 powder, and
potassium hydroxide liquid.  The transmission coefficient of 6.5keV
x-rays (the Mn K edge is at ~6.5keV) through the sample is ~0.001 to
0.01.  I am told that the ionization chamber detectors can easily
detect the x-ray beam after this ~0.01 transmission loss (by
increasing the gain on the detector), but I would like to ask the
IFEFFIT community if there will be other problems with the EXAFS
technique when the transmission coefficient is so low.  Does anybody
have comments?

Much thanks -- if you have any info I greatly appreciate it!
Damon Turney
City College of New York