[Control measurements with TLD-100 sticks for selected radiation fields].

The influence exerted on dose distribution by the specific mass of the material is investigated for irradiation planning on the basis of CT matrices. It is shown that the specific masses of the Alderson phantom actually differ from those calculated by conversion of CT figures. In some planning systems, the conversion of CT figures into specific masses is the only parameter which can be verified by the user. Furthermore, the results of control measurements on the irradiation planning with the system Sidos-U (Siemens Company) are presented.