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| Brand | VPI (Boyuan Micronano) |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | YB-ST5000 |
| Power Input | 220 V, 50 Hz, 1000 W |
| High Voltage Supply | -30 kV, max. -3 mA |
| Electron Gun | Cold-cathode type with beam focusing control |
| Minimum Beam Spot Diameter | ≤1 mm |
| Sample Chamber | Stainless-steel cylindrical chamber (≥180 mm diameter, ≥150 mm depth) with motorized XYZ stage (±30 mm lateral, 0–50 mm vertical, 360° rotation) |
| Observation Window | Lead-glass viewport with optional trinocular stereo microscope (10×–80×), camera port included |
| Vacuum System | Rotary vane pump (2 L/min) with CCD-based vacuum monitoring |
| Control PC | HP 280 Pro G4 MT (Intel Core i7, 8 GB RAM, 2 GB discrete GPU, 2 TB HDD, 21.5″ display, Windows 7) |
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