Easiest thing to do is plot the detx and dety positions and see if the missing ones form a nice pattern of tile joins. Two pounds gets you one they will.
If you have a multi axis gonio two sweeps good. If not deliberately misaligned xtal and 180 or more degrees a good thing. In real life the problem is rarely a big one. Best wishes Graeme > On 18 Feb 2016, at 18:30, Phil Evans <p...@mrc-lmb.cam.ac.uk> wrote: > > Is it just the Pilatus tile boundaries? > >> On 18 Feb 2016, at 17:55, Kevin Jude <kj...@stanford.edu> wrote: >> >> Dear all- >> I am working with a data set that is 96% complete that I have assigned to >> space group C2 with cell dimensions 155.87 59.01 123.32, β=110.72°. I >> noticed a strange pattern of missing reflections in the data (the h0l slice >> in 2D and a 3D view approximately along 211 are in a dropbox at >> http://preview.tinyurl.com/zvqlex7). >> >> The missing data are in elliptical shells (for k=0, minor axes 10.9 Å, 5.45 >> Å, 3.64 Å, major axes 8.44 Å, 4.27 Å, and unmeasured). I can find other >> patterns, eg along the surface of a cylinder approximately around the >> (2,1,1) projection. The dataset was collected in a single wedge on a Pilatus >> detector. Does anyone have thoughts about what might give rise to these >> apparently systematically missing reflections? >> >> Best wishes >> Kevin Jude -- This e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail. Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd. Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments are free from viruses and we cannot accept liability for any damage which you may sustain as a result of software viruses which may be transmitted in or with the message. Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom
