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• Go into the SEM software and check the number of hours on the filament. Filaments typically last around ___ hours, and a failing filament is typically indicated by the emission current reading in the SEM software (any values outside 110+/-20 uA). It is good to be aware of where a filament is, relative to its livespan, so technicians can be prepared to replace it.
• Drain the oil from the vacuum pumps and replace with new oil. The vacuum pump on the SEC SEM takes special high-vacuum oil, which should not be substituted with other vacuum oils.

IV. Credits

Version 10.0 9 of this document was written by Luan Heywood and Kara Vadman, on Exp 397T, with previous contributions by Sarah Kachovich. This document will be reviewed at a further state of completion..

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