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Field Emission Scanning Electron Microscope AT4000Pro
The AT4000Pro is an analytical thermal field emission scanning electron microscope equipped with a high-brightness, long-life Schottky field emission electron gun. It features a three-stage magnetic lens design, providing significant advantages in applications such as EDS, EBSD, and WDS. It comes standard with a low-vacuum mode, along with high-performance low-vacuum secondary electron detectors and plug-in backscattered electron detectors, allowing observation of samples with weak or no conductivity.
Product Advantages
Equipped with a high-brightness, long-life Schottky thermal field emission electron gun.
High resolution, with a limiting resolution better than 0.9 nm at 30 kV.
Three-stage magnetic lens design with a wide adjustable beam current range, supporting an analytical beam current of up to 200 nA.
Leak-free objective lens design, enabling direct observation of magnetic samples.
Standard low-vacuum mode and high-performance detectors.
Standard optical navigation mode and Chinese operating software, making analysis work easier.
Product Parameters
| Key Parameters | Resolution | 0.9 nm @ 30 kV, SE |
| 2.5 nm @ 30 kV, BSE, 30 Pa | ||
| 1.5 nm @ 30 kV, SE, 30 Pa | ||
| Accelerating Voltage | 200 V ~ 30 kV (35 kV optional ) | |
| Magnification | 1 ~ 1,000,000 x | |
| Electron Gun Type | Schottky Field Emission Electron Gun | |
| Specimen Chamber | Low-Vacuum Mode | Max 180 Pa |
| Cameras | Dual cameras (Optical Navigation + In-Chamber Monitoring) | |
| Travel Range | X=1 10 mm, Y=110 mm, Z=65 mm | |
| Tilt & Rotation | T: -10°~+70°, R: 360° | |
| Detectors & Extensions | Standard | In-Chamber Electron Detector (ETD) |
| Low-Vacuum Secondary Electron Detector (LVD) | ||
| Plug-in Backscattered Electron Detector (BSED, five-segment, optional) | ||
| Optional | Energy Dispersive Spectrometer (EDS) | |
| Electron Backscatter Diffraction (EBSD) | ||
| Plug-in Scanning Transmission Electron Microscope (STEM) Detector | ||
| Specimen Exchange Chamber (4"/8") | ||
| Trackball & Knob Panel | ||
| Software | Language | Chinese AT Software |
| Operating System | Windows | |
| Navigation | Optical Navigation, Gesture Shortcut Navigation, Trackball (optional) | |
| Automatic Functions | Automatic Brightness/Contrast, Autofocus, Automatic Ast igmatism Correction |
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