Tunsten filament Scanning Electron Microscope SEM8000F
SEM8000F - NEWEST Scanning Electron Microscope
The ONLY in domestic CHINA!!!
Features
Electron Optics Column of Scanning Electron Microscope:
Column:
1. Gun type: Self-biased triode structure with tungsten source
2. The distance between anode and wehnelt cap is variable and it's especially suitable for low acceleration voltage operation.
3. Both mechanical and electromagnetic alignment is available.
4. The secondary electron image resolution is less than 3nm.
5. Externally adjustable final lens aperture holder with selection of three apertures.
6. Full Mu metal column shielding.
Eversible electron gun:
1. Large eversible angle of the electron gun brings convenience to users during filament replacing.
Specimen Chamber and Stage:
1. Specimen Chamber is equipped with 8 ports for EBSD, WDS, EDS, BSE detectors and other attachment installation
2. Specimen Stage
a) Movable range: X=50mm, Y=50mm, Z=25mm, tilt=-5o~+90o, rotation=360o continuously
b) Observable specimen: 50 mm Maximum specimen: 80 mm.
High Vacuum Column Isolation Valve:
1. This valve separates column from chamber. Hence, when replacing specimen, the column can remain at high vacuum state even if the chamber is in atmosphere. Exchange time and system contamination can be reduced during specimen exchange.
Operation and Display Console:
Operation System
1. Windows XP Professional operating system; Images can be saved in computer or printed out whenever you want.
Image Display System
1. LCD monitor displaying image and menu, 1024×768 display resolution, 256 gray scale
2. Real time display magnification, acceleration voltage, scale, and characters typed by user
Image Acquisition System
1. Real-time acquire slow scanning video signal, both secondary electron signal and backscattered electron signal.
Image Processing Module
1. Use FPGA, with the advantage of small size, high speed and powerful function.
2. Magnification, working distance self-correcting; Digital real-time display
Magnification: 6×~300,000×
Image Rotation
1. Microprocessor controlled digital image rotation.
Scanning Mode
1. Plane, line, spot, selected area dual magnification.
2. Auto Digital Display of Lens Current and High Voltage
3. Dynamic Focus, + auxiliary stigmation and full-screen compilation of character and mark
Microprocessor Controlled Acceleration Voltage
1. Range: 0~300, displaying on the screen. Adjustment step between 0-10 kV is 100V, adjustment step between 10 ~ 30kV is 1kV.
SEM Control and Operation System:
Manual control box
1. Equipped with operation switch, indicator of vacuum status and electron beam, manual multifunctional knob, filament-heating knob and focus-and-fine adjustment knob, the manual control box contributes to faster, easier and subtler image operation.
Software system
1. The software system is based on a Windows 2000/XP interface. Power Windows graphic user interface combines many icons, toolboxes and drop down menus. Varies instrument operations, image processing and analysis functions can be achieved by just clicking the mouse.
Full-automatic Vacuum System:
1. Fully automatic, push button operated (manual take over is provided) with pneumatic valve. Fully interlock, automatic protection against power, water, and vacuum failure. Low oil returning diffusion pump, high vacuum can be reached. It's designed to reducing specimen contamination by hydrocarbon and sample exchange time.
2. Working vacuum: 2.66×10-3Pa (2×10-5Torr)
3. Evacuation time to work: 30 min
4. Air Compressor for coordination of vacuum valves and avoid disturb of electromagnetic valves.
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