Dear Laurie, To me this looks like a textbook case of lattice translocation disorder: depending on the hkl values, the spot are sharp or streaked. Searching for lattice translocation disorder should give you enough relevant papers to get you going. Since it depends on the space group and the exact type of disorder, there are no standard rules und you will have to solve yourself this puzzle. Finding rules for which spots are sharp and which are streaked already gives hints about what could be going on.
Good luck! Herman Von: CCP4 bulletin board [mailto:[email protected]] Im Auftrag von lbetts0508 . Gesendet: Freitag, 4. April 2014 18:20 An: [email protected] Betreff: [ccp4bb] feedback on diffuse diffraction pattern All - This crystal gave a hexagonal space group when the single reflections are auto processed by xds. The streaks are very prevalent - can I get suggestions what they are caused by? Thanks Laurie https://drive.google.com/file/d/0Bx8-qQA_HKegUmliSkUxQ3JtYU1qci1LXzNnWlpxalJHaDBj/edit?usp=sharing
