[Ifeffit] Self-Absorption Corrections
Peter Pfalzer
peter.pfalzer at physik.uni-augsburg.de
Fri Jul 25 09:04:15 CDT 2003
Dear François,
>> But when integrating over large solid angles, the exact geometry of
>> the experimental setup plays a crucial role in determining the
>> selfabsorption correction and I doubt that a useful implementation
>> into iFeffit would be possible.
>
>
> yes but if you say so nothing will ever work. one has to start. I would
> be amazed to see that one day, the perfect self absorption correction
> code will work.
Maybe the point I wanted to make here wasn't clear enough.
When you start integrating for a large solid angle detector you have to
take into account the distance from the beamspot on the sample to the
detector, vertical and horizontal projection of the position of the
beamspot on the detector, the shape and size of the detector, cutoff
angles, ...
I didn't want to say this is impossible or won't work (it does). I'm
just not sure how the realization of this complex task could look like,
so that the number of satisfied iFeffit users will justify the time Matt
spends on writing the code.
Of course you have to start somewhere go get something to work. But this
is where I would NOT start. An easy to use small solid angle version
with only a couple of unambiguous parameters seems a much more favorable
starting point to me.
Best,
Peter
--
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Peter Pfalzer
Universitaet Augsburg Tel: +49-821-598-3215
Lehrstuhl fuer Experimentalphysik II Fax: +49-821-598-3411
Universitaetsstr. 1
D-86135 Augsburg
Germany Peter.Pfalzer at physik.uni-augsburg.de
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