Английская Википедия:Focal spot blooming

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Шаблон:Orphan Focal spot blooming is the unwanted change in the focal spot size of an X-ray tube during change in exposure.[1]

Cause

Focal spot blooming is caused due to increased mAs. When high exposure setting are used, the electron beam from the cathode fail to focus on a particular point because of electrostatic repulsion.[2]

References

Шаблон:Reflist


Шаблон:Med-imaging-stub