Evaluation of overlapping doses for gynaecologic cancer patients using semiconductor diodes

Abstract

In vivo dosimetry involves the assessment of external irradiation doses to cancer patients with the aim to ensure high precision and accuracy in dose planning and delivery during radiotherapy procedure. In vivo dosimetry can also be used for the estimation of uncertainties that may occur during radiotherapy treatment and for prevention against systematic errorsand undesirable exposure. Implementation of in vivo dosimetry during irradiation can assist in detecting of doses that exceed the limits or are insufficient to treat the cancer according to the prepared dose plan. However, the availability of the various in vivo dosimetry systems remains is limited. This is partially related to the needs for the new installations of doserecording and dose verification systems and the general belief in the usefulness of these systems in detecting patient set-up errors, as well as beam energy, treatment accessory and geometry errors. Despite of this, implementation of in vivo dosimetry systems is ongoing and is seen as a crucial part of a radiation safety system in radiotherapy department […].