Re: [sdpd] The (small) budget makes the law

["L. Cranswick" <L.M.D.Cranswick...@dl.ac.uk>]

> >Though I think it should be mandatory that the sample
> >should also be solved by micro-crystal synchrotron 
> >techniques prior to any powder data being distributed
> >so that a proper benchmark result is present.
> 
> For a good powder (1 < grain size < 5 microns), that would not
> be possible. And this is exactly why SDPD has some interest.
> The result from DASH (ex-DRUID) in June 1998 during the
> first SDPD Round Robin compared quite well with the single
> crystal data.
>                     http://www.cristal.org/iniref/ecm18/t30.gif

Why does the sample have to be from a good 1 < grain size < 5 microns
power - as long as the powder data giving to participants is 
a representative pattern?  Getting a sample with some crystallites
in the 10 to 30 micron range would hopefully make it possible
to perform validation with synchrotron single crystal.

Lachlan.



-- 
Lachlan M. D. Cranswick

Collaborative Computational Project No 14 (CCP14)
    for Single Crystal and Powder Diffraction
Daresbury Laboratory, Warrington, WA4 4AD U.K
Tel: +44-1925-603703  Fax: +44-1925-603124
E-mail: l.cranswick...@dl.ac.uk  Ext: 3703  Room C14
                           http://www.ccp14.ac.uk


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