In the ADXV viewer: http://www.scripps.edu/tainer/arvai/adxv.html
Go to Edit:Settings and click on the "Small Spots" radio button. This solves most of the "I can't interpret the spots" problems you describe.
-James Holton MAD Scientist On 4/27/2015 3:31 PM, Bernhard Rupp (Hofkristallrat a.D.) wrote:
Hi Fellows, I wonder whether it's just me and my eyesight failing (or excessive internal lubrication).... It seems that the art of looking at diffraction patterns and being able to tell a lot about modulation, superstructures, extinctions, etc. becomes kind of useless old fart stuff when dealing with PAD images. I can’t for my life see interpretable patterns on frames where the beamline autoprocessing delivers actual data sets. The absence of a point spread function etc that gave interpretable film-like images on IPs or CCDs, seems to be the reason. A PAD pixel with 1000000 counts looks like one with 100 when viewed with the low dynamic range of the displays compared to the huge dynamic range of the detector. Is there somewhere in the process a humanly unusable composite image with a point spread that allows visual pre-processing, inspection, and interpretation despite a low dynamic display range? Looking at the hklview or similar after processing is pointless (no pun intended), because the stuff I might be interested in is already processed away. Some humanly interpretable raw data images would be quite useful... Best regards, BR ----------------------------------------------------------------- Bernhard Rupp 001 (925) 209-7429 +43 (676) 571-0536 b...@ruppweb.org http://www.ruppweb.org/ ----------------------------------------------------------------- The man who follows the crowd will get no further than the crowd. The man who walks alone will find himself in places where no one has been before. -----------------------------------------------------------------
