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SEM observation at an atmospheric pressure as well as under vacuum. Wet specimens can be observed in their natural state without preprocessing.
Hitachi developed a new concept in scanning electron microscopes, the AeroSurf. The hybrid tabletop atmospheric SEM (ASEM) has an extremely thin membrane which separates the evacuated column and atmospheric-pressure chamber, enabling the observation of typically difficult specimens, such as bulk or wet samples, in their natural state.
|Electron Gun||Pre-centered cartridge filament|
|Detector||High-sensitivity Semiconductor BSE Detector|
|Accelerated Voltage||5 kV / 15 kV|
|Magnifications||15 x to 60,000 x (240,000 x with digital zoom)|
|Observation Pressure||Atmospheric mode (105 Pa) with the membrane
Negative pressure mode (approx. 103 Pa to 105 Pa) with the membrane
Vacuum mode (approx. values between few Pa to several tens Pa) without membrane
|Max Sample Size||55 mm in diameter|
|Dimensions||Main unit: 330 (W) x 687 (D) x 565 (H) mm, 67.0 kg
Control unit: 220 (W) x 368 (D) x 235 (H) mm, 11.8 kg
Diaphragm pump: 145 (W) x 256 (D) x 217 (H) mm, 4.5 kg (x2)