Application of the Alara Principle in Minimizing the Exposure of Operators of Radiotherapy Co-60 Units
نویسندگان
چکیده
The paper presents the results of mapping stray radiation fields in three different radiotherapy treatment rooms equipped with three different Co-60 machines. Based on the distribution of the ambient dose equivalent rate, the effective dose to the personnel under various scenarios has been assessed with regard to their movement and position in the room during the preparation of the machine and the patient for treatment. Analysis of the results showed that by using an optimum scenario taking into account the actual distribution of the radiation level in the room, exposure of the personnel may be reduced considerably.
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