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nature : an electronic optical equipment. From the gate and anodic filament electron guns, electron gun fired from the electronic flow, the three electromagnetic lens, it became small beam, placing the end of the upper-class lens enables electron beam coil surface of the samples for raster-scan. Sample role in the electron beam, stimulates the signals. By nanogram sensitivity detectors and security terms stimulate the electronic signal receiver down, the signal amplification system, transmission gate to the tube to tube modulation brightness. Surface samples from the point of collection by the signal intensity on-screen CRT with the corresponding point is that he gathers between brightness and thus the state of different samples, the relative brightness are different, the camera negatives available after photosensitive polymer morphology characterization of the electron microscope photographs.
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