The accelerating voltage of a transmission electron microscope (TEM) typically ranges from 100 kV to 300 kV.
This voltage is a critical parameter affecting the performance and capabilities of the TEM. Here's a breakdown:
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Lower Voltage (e.g., 100 kV): More suitable for specimens sensitive to electron beam damage. Lower voltages provide higher contrast, which can be advantageous for imaging certain types of samples.
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Higher Voltage (e.g., 300 kV): Allows for greater penetration of thicker specimens. Higher voltages result in improved resolution, enabling the observation of finer details at the atomic level.
Therefore, a voltage between 100kV - 300kV is typically used in most TEM or STEM systems. While higher voltages can be used, they are often more expensive to maintain.
