[Investigations of xerographic pictures in tomography (author's transl)].

Tomograms of a variety of test-objects and of a Alderson phantom skull are compared for their differences between film- and xero-tomograms. Xerography provides tomography with the advantage of correcting the typical loss of contrast and sharpness by an increase at the margins. The disadvantages is that the sharper contours also appear on the blurring figures which renders them more noticeable. The high irradiation-dosage of Xerotomography so far prevents its clinical use in a wilder field.