Ion chambers compliance results of Brazilian radiation therapy facilities

The Brazilian Nuclear Energy Commission ( cnen ) has been making a constant effort to keep up to
date with international standards and national needs to strengthen the status of radiological
protection of the country. The guidelines related to radiation therapy facilities have been revised
in the last five years in order to take into consideration the most relevant aspects of the growing
technology as well as to mitigate the accidents or incidents observed in practice. Hence, clinical
dosimeters have gained special importance in this matter. In the present work, we discuss the
effectiveness of regulation and inspections to the enforcement of instrument calibration accuracy
for the improvement of patient dosimetry and quality control. As a result, we observed that the
number of calibrated instruments, mainly well chambers, is increasing each year. The same behavior
is observed for instruments employed in technologically advanced radiation treatments such as...

Source: Journal of Radiological Protection - February 15, 2018 Category: Physics Authors: G Joana, C Salata, P Leal, R Vasconcelos, N do Couto, F C Teixeira, A D Soares, E S Santini and M Gon çalves Source Type: research