[3dem] dirty condenser apertures

Heather Holdaway hah46 at case.edu
Fri Sep 28 07:53:25 PDT 2012


We have an FEI TF20 with a FEG.  We just changed out all the C2 apertures
yesterday and they were looking very clean and nice at the end of the day.
We ran a cryo cycle overnight and now this morning all 4 apertures are very
dirty.  Has anyone else ever had this happen?  Any ideas as to why the
apertures became dirty so quickly?

Thanks!
Heather
-- 
Heather Holdaway
Electron Microscope Manager
Cleveland Center for Membrane and Structural Biology

Campus Mailing Address:
Case Western Reserve University
School of Medicine
Department of Pharmacology
10900 Euclid Avenue
Cleveland, Ohio 44106-7099

Lab and Office Address:
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Cleveland Center for Membrane and Structural Biology
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Cleveland, Ohio 44106

Phone: 216.368.5752
Cell: 765.586.4192
Fax: 216.368.1300
Email: heather.holdaway at case.edu
http://ccmsb.case.edu/
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