[Ifeffit] Fe B standard

[Bruce Ravel]

On Wednesday 29 March 2006 13:13, Scott Calvin wrote:
> Hello again,
>
> The reason I was looking through the Lytle database was that I was
> looking for a standard I could use for an iron boron compound (more
> iron than boron). The database has one as "raw" data, but I don't
> recognize the format. The headers look like:
>
>   CUEDGE START STOP BEG FSCTS:  168620.  230500.  174080.  272000.      30.
>    DELTA:    2000.      15.      90.     150.     210.
>   DELEND:  217740.  214450.  200860.  187700.  174080.
>      SEC:       1.       1.       1.       1.       1.
>
> Does anyone recognize this?

Scott,

The first column of the data is almost certainly encoder reading.
Assume that the data were measured with a Si crystal and one of the
common faces.  If you assume that the CUEDGE is the encoder reading of
8979 eV and that 7112 eV must lie between 230500 and 174080, you
should be able to figure out (using Bragg's law) what the number of
steps per degree is and what the zero offset is.  From there, it's
just a few lines of Ifeffit to convert the data file into something
Athena can grok.

B

P.S. I would *love* to know the beer back story also.  Why don't I
ever get research projects that involve beer?


-- 
 Bruce Ravel  ---------------------------------------------- bravel at anl.gov

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