X25 Technical Documents
protein
crystallography
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  Setup of X25 Goniometer Head for Use of Kappa in Crystal Mounting

Xtal Setup
When mounting / unmounting your xtals using kappa, make sure you adjust the total lenght of your pin + post such that it stays in the field of view of the camera and most importantly in the cryostream.
To easily orient the goniometer head, move omega -90 and kappa90.
Loosen the screw and slide the post to the total desired lenght of
34 mm.

 

Collecting
with kappa
not zero
If you align your xtal to a specific orientation with a kappa offset, you need to put this value in the SET REALTIVE ZERO of the 'Collect' tab in cbass.

Updated 10 July 2006 by AH Security Notice   Webteam   Site Map   Bio   PXRR   NSLS   BNL