[sdpd] Re: a suggestion...

[John Faber <faber... @icdd.com>]

The ICDD maintains the PDF-2, that contains information on approximately 
120,000 powder patterns.  In addition, the ICDD is compiling a database of 
full patterns (the database is called PDF-3).  At last count there were 
approximately 3,000 full patterns in this forming database. We also have a 
large number of NIST 1976 corundum datasets that were taken as reference 
patterns.

For transport and archiving purposes, we have used CIF-STAR.  The Powder 
Dictionary provides a means of documenting the experiment associated with 
each data set (ICDD has significant input, along with others, for the 
design of this dictionary).
I am sure the ICDD would be happy to receive full patterns (with supporting 
documentation) for possible inclusion in this new PDF-3 database.

Thanks,

John

At 12:32 AM 11/4/99 +0100, you wrote:
> Helio Salim de Amorim wrote:
>
> >... could be very useful to create a powder diffraction data base in the 
> Web,
>
> This is really something to do.
>
> I am sure that Lachlan would be ready to store a data base of
> powder patterns. I would add to this database many patterns,
> already available in dispersed Web pages. If authors of SDPD
> were all convinced of the interest of this database, more than
> 300 raw patterns could be listed with their characteristics and
> references of publication, but...
>
> Note that you may find some full powder patterns attached to
> papers published by the IUCr Journals. There is already a
> kind of small database there.
>
>            http://journals.iucr.org/services/search.html
>
> But the papers are not really arranged in a way allowing a systematic
> search giving only outputs containing raw powder data. You
> have to try paper by paper after a search by using "powder" as
> keyword. Then you will find data times to times, like :
>
> http://journals.iucr.org/iucr-top/journals/acta/tocs/actac/1999/actac5503.d 
> /av1026.rtv
>
> And some papers escape to IUCr.
>
> Best,
>
> Armel

_____________________________________
Dr. John Faber
Principal Scientist
ICDD
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also see: http:\\www.icdd.com