Hitachi HF2000 TEM Operation Manual page 8

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Insert objective aperture into the central spot that should be centered by using the objective X/Y
adjustment screws.
•
Press [ZOOM] to seen a bright field image.
•
Pull out SA aperture
•
Correct the astigmatism by adjusting fine focus and OBJ STIG X and Y controls if necessary.
(Using minimum contrast method and amorphous contrast)
10. Bright fielding imaging
•
Find an interesting sample area.
•
Focus the beam and sample to the crossover.
•
Press [DIFF]. (see Sec.9, SAED)
Note: If the central spot is not at the viewing center, center it using the INTER ALIGN X and Y knobs
(left sub panel). If the spot is not round, make it round using INTER STIG X and Y knobs (left sub
panel).
•
Insert the objective aperture into the beam by turning the aperture handle clockwise.
•
Press [ZOOM] to see a bright field image.
•
Adjust fine focus and OBJ STIG if necessary.
•
Adjust Brightness so that Auto exposure time is between 2-5 seconds.
•
Cover the viewing window
•
Press [Photo] to expose the film and record a bright field image.
Electron diffraction pattern
Electron diffraction pattern
電子回折図形
明視野像
Bright fielding imaging
格子（多波干渉）像 Lattice imaging
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