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Parameter
Crossbeam (gas tight), with an axial connector
Bakeout temperature
Without cables and connector plates
With electron collimation magnet
With cables and connector plates
With pre-amplifier or electrometer
Materials in vacuum
Stainless steel, Mo, Al
O
2
11)
Filament life
Tungsten
Yttriated iridium
Weight
QMA 400 (Faraday)
QMA 400 (90° SEM)
QMA 410 (Faraday)
QMA 410 (90° SEM)
QMA 430 (90° SEM)
Tbl. 7:
12.2 Dimensions
Fig. 23:
Dimensions in mm.
11) Valid for p < 10
, CuBe, Ni, W, yttriated iridium
3
Technical data
90° off-axis SEM
E
E
133
D
Dimensions
-5
hPa, emission 1 mA and electron energy ≥70 eV in a non-oxidizing atmosphere
Technical data and dimensions
Value
Bore in glass ceramic for tube with outer diameter
3 mm
≤400°C
≤300°C
≤180°C
≤50°C
>10000 h
>10000 h
2.9 kg
10.7 kg
6.5 kg
17.2 kg
10.7 kg
Faraday
E
133
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