In an x-ray tube during exposure, which direction do electrons move?

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Multiple Choice

In an x-ray tube during exposure, which direction do electrons move?

Electrons move from the cathode toward the anode. The filament at the cathode is heated to release electrons (thermionic emission), and the high voltage pulls these free electrons toward the positively charged anode target. They travel as a focused beam along the tube axis and strike the tungsten target, converting their kinetic energy into x-rays and heat. This motion is directed by the electric field, so it is not circular or random. If you think in terms of conventional current, that direction is opposite the actual electron flow.

Electrons move from the cathode toward the anode. The filament at the cathode is heated to release electrons (thermionic emission), and the high voltage pulls these free electrons toward the positively charged anode target. They travel as a focused beam along the tube axis and strike the tungsten target, converting their kinetic energy into x-rays and heat. This motion is directed by the electric field, so it is not circular or random. If you think in terms of conventional current, that direction is opposite the actual electron flow.

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