| 摘要 |
An electron microscope equipped with an x-ray detector whose position is made different, depending on whether the detector is in use or not. The microscope prevents the irradiated position and the image from escaping even when the detector is moved into or out of a valve. A switch is operated to move the detector. The microscope has a deflection current-correcting circuit which supplies correcting currents to the deflection coils in step with the operation of the switch.
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