title: [Radiation exposure in computed tomography].
abstract: The axial dose profile of various scans of different CTs was determined to obtain specification on radiation geometry by collimation. The dose was measured "free-in-air" by thermoluminescent dosimeters at the axis of rotation. Considerable differences between the various CTs were observed. The scans of different CTs had narrow and wide fields. It seems to be possible to reduce the energy transmitted to the body by appropriate collimation.
authors.affiliation: Röntgenabteilung AK Ochsenzoll, Hamburg.
authors.forename: H K
authors.initials: HK
authors.lastname: Gollnast
authors.forename: H
authors.initials: H
authors.lastname: Vogel
mesh_terms: D006801:Humans; D011786:Quality Control; D011829:Radiation Dosage; D013819:Thermoluminescent Dosimetry; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*