Hi Nelson,
The very fact you see these two options means the software you are using does
not provide deserved separated treatments for converting Ka1 and Ka2 lines.
It is, most likely, simply applying Bragg's law to convert the 2theta axis
only, which assumes Ka2 lines are from separate d-spacings hence positions them
wrongly on the target wavelength.
The correct way of using such kind of software is: FIRST strip Ka2, THEN
"convert CuKa1 to CoKa1", otherwise:
a) If you just apply "convert CuKa1 to CoKa1" without strip Ka2 first, the Ka1
lines positions will be converted correctly, but all Ka2 lines will be put at
wrong positions.
b) If you simply choose "convert CuKa average to CoKa average" without strip
Ka2 first, then neither Ka1 lines nor Ka2 lines will be at correct position,
but their "average position" will be right.
Cheers!
Cheers!
Tony@QUT
At 2019-01-08 04:04:10, "Nelsonsd" <nelson.dua...@ipn.pt> wrote:
Dear colleagues
I have a small question about conversion of copper to cobalt radiation.
I have characteristic peaks of a Pharmaceutic API (literature) in copper
radiation and I need to convert in cobalt radiation, can I use in ka1 of
copper (1.54056 A) and Ka1 of cobalt or the best way is use Ka (ave) (1.54184
A) of copper and cobalt ?
Thanks in advance
Best regard
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