Development of a dosimetric postal system for calibration of 90Sr+90Y clinical applicators

Abstract

The Calibration Laboratory of IPEN (LCI) offers calibration services of different metrology instruments using various types of ionizing radiations. Recently, the LCI started to offer the calibration service of 90Sr+90Y clinical applicators, using a mini-extrapolation chamber, for those sources which can be sent to the laboratory. Several Brazilian clinics and hospitals that offer brachytherapy treatments and still use these applicators, sometimes can not send them to the LCI, to avoid disruption and delays in the patient treatments. To minimize this problem, an alternative calibration method was suggested. The objective of this work was the development of a dosimetric postal system to be sent to clinics and hospitals, for the calibration of these sources.