Thanks - particularly great if we had these images/option available to look
at
in real time during data collection, w/o first having to download the raw
data (not
really feasible during remote data collection). I don't think the ESRF
online data base has the option, but other beam lines may?
Thx, BR
-----Original Message-----
From: James Holton [mailto:[log in to unmask]]
Sent: Monday, April 27, 2015 4:05 PM
To: [log in to unmask]; [log in to unmask]
Subject: Re: [ccp4bb] PAD images
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
> [log in to unmask]
> 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.
> -----------------------------------------------------------------
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