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← ScienceWhich outcome results when a transmission electron microscope operates with poor accelerating voltage stability?
A)Chromatic aberration blurs fine details✓
B)Spherical aberration distorts planar features
C)Astigmatism obscures the entire image
D)Coma introduces off-axis asymmetry
💡 Explanation
Chromatic aberration arises due to energy spread, described as energy distribution function, in the electron beam; because voltage instability varies the beam's energy, the resultant spread worsens chromatic effects. Therefore, this blurs the final image, rather than spherical aberrations that depend on lens shape.
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