What is your cold stream - phi axis relative and absolute orientation?
FF
Dr Felix Frolow
Professor of Structural Biology and Biotechnology
Department of Molecular Microbiology
and Biotechnology
Tel Aviv University 69978, Israel
Acta Crystallographica F, co-editor
e-mail: [log in to unmask]
Tel: ++972-3640-8723
Fax: ++972-3640-9407
Cellular: 0547 459 608
On Jun 22, 2011, at 19:22 , bie gao wrote:
> Dear Colleagues,
>
> I'm collecting a dataset on our recently repaired Rigaku home source.
> Crystal diffracts to 2.2A. Indexing seems to be all fine. However, during integration, I realize Y-Chi2 is increasing constantly (from 2 to 4.5, almost linear) within 60 degree collection, whereas X-Chi2 stays the same. An image is attached. There are still another 60 degree to go. Although the prediction fits the images well so far, I'm afraid the Y-Chi2 will eventually run out of the chart.
> My question is could it be related to any hardware malfunctioning, i.e., goniometer, image plates, etc, which may be a side effect of the recent major repair? Or what else it can be?
>
> Thanks,
> Bing
> <Chi1.gif>
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