JEOL JEM1400 Operation page 14

Generate an electron beam
Use the Beam controller
 HT voltage – ON (may already be on i.e. green)
 Filament – ON

Bias – adjust Bias Coarse
Need 12 – 16µA emission
For 80kV, the beam current = 44µA. Therefore the total = 56 - 59µA
kV Beam current
40 22µA
60 33µA
80 44µA
100 55µA
120 67µA
EM Suite 15/11/2016
window
or Bias Fine to change the beam current.
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