I think you should just grab a copy of Stout and Jensen, and use the oscillation photographs directly. What's so special about a precession image? You can still index the spots and follow along rl lines.
Bernie Santarsiero On Thu, June 25, 2009 1:38 pm, Francis E Reyes wrote: > Yes this is exactly what I wanted. I'm embarking on an educational > pursuit of determining the space group from the diffraction images > directly. Unfortunately it seems like all the solutions insofar are > only commercially available as part of large packages that don't list > their prices directly on the website and, therefore, are probably too > much for a single person to afford for just this purpose. > > Cheers > > FR > > > > On Jun 25, 2009, at 10:41 AM, Ian Tickle wrote: > >> But I thought what you wanted was to reconstruct the diffraction >> pattern >> (i.e. streaks, TDS, ice rings, zingers, warts & all) as a >> pseudo-precession image, not just display a representation of the >> integrated intensities. That surely would be much more useful, then >> one >> could see whether the apparent systematic absence violations were just >> streaks from adjacent spots, TDS, ice spots etc that have fooled the >> integration algorithm. That would be much more useful! In the days >> when we had real precession cameras this was how you assigned the >> space >> group. >> >> Cheers >> >> -- Ian > > --------------------------------------------- > Francis Reyes M.Sc. > 215 UCB > University of Colorado at Boulder > > gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D > > 8AE2 F2F4 90F7 9640 28BC 686F 78FD 6669 67BA 8D5D >
