In a method for correcting for stray radiation in measured intensity values,
the
measured intensity values are obtained in an X-ray computed tomography scanner
by means of a detector matrix that is situated in a tomography measuring field
of the computer tomography scanner and has a multiplicity of detector elements
arranged next to one another in a number of adjacent detector rows. At least one
reference distribution of the stray radiation intensity is determined in the row
direction of the detector matrix, and a stray radiation component of each measured
value of intensity is determined starting from this at least one reference distribution,
and the measured intensity values are corrected as a function of their respective
stray radiation component. In this case, the stray radiation component of the measured
values of intensity of at least a fraction of the detector rows is determined by
using a recursion method on the basis of the reference distribution.
