Re: [ccp4bb]: question

[Tommy Wang <chernhoe@ima.org.sg>]

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Thanks for all the great suggestions by Edward and Morten.

I will use the outputs from SCALA (wilson's plot) and CRYSOL (solution 
scattering) and see what works.

Morten: is CRYSOL the program u have in mind, or are there other alternatives?

tommy


On Saturday 23 March 2002 21:17, you wrote:
> Tommy,
>
> > Does anyone know how to average out the crystallographic structure
> > factors and/or measured intensities and convert them into a 1D intensity
> > versus spatial frequency (1/lambda) plot ? To put it another way, I want
> > to know if there is a way to approximate SAXS intensities by rotationally
> > averaging out the crystallographic intensities. I suppose this is a silly
> > question, but that is fine with me :)
>
> I don't think it makes sense to do that from the diffraction data unless,
> perhaps, if the crystal is in the triclinic space group.  Another point is
> that diffraction data very rarely contains the lowest angle terms which
> are the ones you are most interested in for this purpose. You can,
> however, compute a SAXS scattering profile from coordinates and programs
> exist to do that.
>
> /Morten