Method for focus adjustment in a CT apparatus

X-ray or gamma ray systems or devices – Specific application – Computerized tomography

Reexamination Certificate

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C378S205000

Reexamination Certificate

active

11482263

ABSTRACT:
In a method for non-iterative focus adjustment in a CT apparatus the position of the center ray with regard to the movement direction of the focus and the correct phase between the detector sampling frequency and the focus springing frequency are calculated with a minimal number of sinogram acquisitions and is adjusted without iterative steps, corresponding to predetermined values.

REFERENCES:
patent: 5625661 (1997-04-01), Oikawa
patent: 6256369 (2001-07-01), Lai

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