Hi All, We have been noticing lately that our crystal pucks return from different beamlines coated with the same powdery material. For the record, we typically undo our pucks, clean the assemblies and dry out the pucks within a day of receiving the shipping dewar, but notice the same thing regardless of how long between receiving the dewar and disassembling the pucks. Have any of you experienced this sort of thing, or have suggestions of what might be the cause and/or the powdery material?
Regards, Emily. -- "Study as if you were going to live forever; live as if you were going to die tomorrow." - Maria Mitchell "I'm not afraid of storms for I'm learning to sail my ship." - Louisa May Alcott ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1
