Question:

What is Focal Spot?

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What is Focal Spot?

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  1. For science and technology, in electron-beam or laser welding, the spot where the beam has the highest concentrated energy level.

    http://www.answers.com/topic/focal-spot

    For medicine, the area on the target of the x-ray tube which the electron stream strikes and from which x-rays are emitted. Called also focus. The larger the area of the focal spot, the poorer is the detail in the x-ray image.

    http://medical-dictionary.thefreediction...

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