Apologies for this slightly off topic question: I am having a great deal of trouble with my X-Stream 2000 cryostream system and I wondered if other users have similar problems.
I've replaced almost all components (new GAST compressors, helium recharges, filters, etc., etc.) in the last couple of months but there is almost always icing of any cryo within 10 - 20 minutes of mounting a loop, and it is adversely affecting data collections. It appears like there is too much moisture in the cold or wam streams but the tubes have been fully dried out as per Rigaku advice. This X-Stream is attached to a generator with inverted phi axis and and i'm wondering if this could be the source of the problem, as the X-Stream for another generator in the same laboratory with normal phi axis does not ice up. Can some sort of turbulence around the loop caused by backdraft from the cryo hitting the inverted phi axis / camera mount cause excess humidity and lead to icing on the pin, loop and crystal? Has anyone else got this problem? Any suggestions would be very gratefully appreciated. Best Wishes, Mark _____________________________________ Dr Mark Agacan Scientific Officer, Division of Biological Chemistry and Drug Discovery, Wellcome Trust Biocentre, College of Life Sciences, Dow St., University of Dundee, Dundee, DD1 5EH Tel: +44 1382 388751 Fax: +44 1382 345764 _____________________________________ The University of Dundee is a registered Scottish charity, No: SC015096
