Re: [sdpd] database PDF

[Thierry Bataille <thierry.bataille...@univ-rennes1.fr>]

should be a 'zero' quality...
Thierry


marco.sommariva...@mater.unimib.it a écrit :

>Thanks a lot, probably mine is an old version with some
>mistakes.
>Do you also know the meaning of O-quality symbol?
>Thamks in advance, my best regards,
>marco
>
>
>----- Original Message Follows -----
>From: Thierry Bataille <thierry.bataille...@univ-rennes1.fr>
>To: sdpd...@yahoogroups.com
>Subject: Re: [sdpd] database PDF
>Date: Wed, 17 May 2006 14:30:07 +0200
>
>  
>
>>Dear Marco,
>>
>>1- Using the last PDF-2 release, the lines seem correctly
>>plotted on the  screen (both using the ICDD software and
>>EVA). 2- never seen the u character. Maybe corresponds to
>>unindexed lines with  the unit cell given by the authors.
>>3- The quality marks are given following the sequence C, *
>>, I, N, Q,  D.   C stands for calculated pattern (from
>>single crystal), * is the  best quality for experimental
>>data, I means indexed, N is non-indexed, Q  questionable,
>>D are deleted patterns (usually replaced by a more recent 
>>one).
>>
>>Best,
>>
>>Thierry
>>
>>
>>
>>marco.sommariva...@mater.unimib.it a écrit :
>>
>>    
>>
>>>Dear Crystallographers,
>>>I have some short questions on powder database PDF-2:
>>>
>>>1) with surprise I saw that hardcopies of  files are not
>>>exactly equal to screen versions, in particular for
>>>Intensity values reported in the lists; in some cases
>>>      
>>>
>>this >fact is not really important (e.g. for anatase n°
>>21-1272, >there are some little differences, (103) is
>>printed as 10% >but on screen it should be 14%, (200) is
>>printed as 35% but >on screen it is 65%); in other cases
>>the difference is >really strong, as in NiAl26O40 (PDF
>>    
>>
>n°
>  
>
>>20-0776), infact >peak (302) is printed as 20%, but on the
>>screen it is 100% >(the representation of the profile on
>>the screen is coherent >with the list on the screen). What
>>is the problem? >
>>    
>>
>>>2) Does somebody know what is the symbol u printed
>>>      
>>>
>>sometimes >near Intensity values?
>>    
>>
>>>3) What is the Quality legend? I mean, in some files
>>>Quality=C, I, *, or nothing; what is the meaning?
>>>
>>>Thanks in advance, with my best regards,
>>>
>>>Marco Sommariva
>>>
>>>-------------------------------------
>>>Marco Sommariva
>>>Department Of Materials Science
>>>University Milano-Bicocca
>>>Via R. Cozzi 53, 20125 Milano (ITALY)
>>>mail: marco.sommariva...@mater.unimib.it
>>>phone: 0039.02.64.48.51.41
>>>-------------------------------------
>>>
>>>
>>>
>>>
>>>
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>>>
>>>
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>>>
>>>
>>> 
>>>
>>>      
>>>
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