Bob Von Dreele wrote:

> >In that case even the single crystal data resulting from the integration
> >of images registred by an image plate are not strictly independent!!??
> >Information read from one pixel can depend on the information registred
> >in a neigbouring pixel.
> 
> This would be true if the spots are close enough to each other so that they
> overlap (i.e. in protein patterns)

No Bob, that was not my point. When you integrate one single crystal
reflection, well separated from the others, what data do you use :
information coded in individual pixels. Have they "bled over" into the
neighboring pixels during the reading procedure? The pixels do not know
whether it was powder or single crystal who sent the photons to them :-)
I do not think that the powder data integrated from an image plate are
more correlated than those measured with a point detector.

Anybody who has developped the image plate software?

Best regards
-- 
Radovan Cerny              
Laboratoire de Cristallographie    
24, quai Ernest-Ansermet              
CH-1211 Geneva 4, Switzerland                            
Phone  : [+[41] 22] 702 64 50, FAX : [+[41] 22] 702 61 08
mailto : [EMAIL PROTECTED]
URL    : http://www.unige.ch/crystal/cerny/rcerny.htm

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