FIELD: physics.
SUBSTANCE: x-ray tube includes an emitter arranged to emit electrons on to a focal spot on a rotatable anode. The x-ray tube also includes a hollow tube arranged to receive electromagnetic radiation from the focal spot at one end of the hollow tube and transmit it to another end. The x-ray tube also includes two or more sensors arranged to detect the electromagnetic radiation through the hollow tube.
EFFECT: high accuracy of temperature measurement.
12 cl, 7 dwg
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