My first work Brief Introduction of Transmission Electron Micros | Page 3

less.
The resolution is lower than large electron microscope, 1-2nm.Because of the low voltage,
transmission electron microscope, scanning electron microscope and scanning transmission
electron microscope can be integrated on one device
Frozen electron microscopy (sem)
Frozen electron microscopy (then microscopy) is usually on the ordinary transmission
electron microscopy (sem) equipped with samples, refrigeration cooling to the sample of the
liquid nitrogen temperature (77 k), to measure protein, biological slice is sensitive to the
temperature of the samples.By freezing the sample, the damage of the electron beam to the
sample can be reduced, and the deformation of the sample can be reduced, so as to obtain a
more real sample morphology.