[3dem] glow discharge "fireball"

Reinhard Rachel Reinhard.Rachel at biologie.uni-regensburg.de
Thu Feb 5 07:29:51 PST 2026


Just a remark: 

I have never seen this happening. 
I always use a Harrick Plasma cleaner (just as a satisfied customer since > 30 years who does not want to spend too much money).
Setting LOW, for about 20(-45) sec. 
I always use a clean glass slide on which the grids lie on. Always. 
I always use "atmosphere" (= N2 / O2 + residuals) at little below  0.1 mbar. 
just my 2 cents. 
Kind regards,
Reinhard


-- 
Prof. Dr. Reinhard Rachel
University of Regensburg
TEM+SEM / Anatomy
Faculty of Biology & Preclin. Med.
Universitaetsstrasse 31
D-93053 Regensburg - Germany
tel +49 941 943 -2837, -1666
mail reinhard.rachel at biologie.uni-regensburg.de
office: VKL 3.1.29 
member of the IFSM board

Next microscopy conference:
- IMC21, The 21st Intl. Microscopy Congr 2026 in Liverpool, UK: Aug 31-Sept 4, 2026
- next Microbiol. conference:  VAAM 22.3.-25.3.2026 - Berlin





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