Dose to radiological technologists from induced radionuclides in carbon ion radiotherapy

In this study, annual doses to RTs working in a carbon ion radiotherapy facility were estimated based on measurements with the Si-semiconductor personal dosemeter. In addition, the time decay of dose around a patient couch after irradiation was obtained by phantom experiments. The annual Hp(10) values for passive and scanned beams were estimated to be 61 and 2 μSv, respectively, when assuming the number of treatments in 2013. These are much lower than the ICRP recommended dose limit for radiation workers. The time-series data of dose to RTs during their work and the time decay of the dose should be helpful for reducing their dose further.

Source: Radiation Protection Dosimetry - September 7, 2016 Category: Radiology Authors: Yonai, S., Spano, V. Tags: Paper Source Type: research