Logo of the Physikalisch-Technische Bundesanstalt

A dosemeter for small radiation fields

Especially interesting for doctors and hospitals for radiotherapy


By means of a newly developed dosimetric measurement procedure for teletherapy accelerators, the dose can – despite the small air volume of the chamber of 1 mm3 – be determined reliably and within just a few seconds. The underlying patented procedure is baded on the pulse-resolved analysis of the detector to enable the deduction of undesirable signals in feed lines, in connections as well as in the electronic evaluation unit. Thanks to the microdosimetric information obtained additionally, it will, in future, be possible to make statements on the relative biological effectiveness for the treatment of patients.