Determinación de la tasa de dosis ambiental en instalaciones hospitalarias de la ciudad de Ambato que brindan servicio de rayos X y tomografía computarizada.

Abstract

The objective of this degree work is to determine the environmental dose rate in hospital facilities that provide X-ray and CT scans in the city of Ambato. The procedure is based on the XLIX protocol of the Regional Cooperation Agreement for the Promotion of Nuclear Science and Technology in Latin America and the Caribbean (ARCAL), where the critical points, adjoining rooms and type of area were identified. The identification of the critical points was based on the recommendations of report 147 of the National Council of Radiological Protection and Measurements (NCRP). For the determination of the annual environmental dose rate, it was directly considered the highest identified dose rate value and the parameters proposed by the ARCAL and NCRP as: use factor, occupation and workload. It is concluded that, in the 6 hospital facilities, the X-ray rooms and their adjacent areas are within the permissible limits, with the exception of point E of area 5, which corresponds to a bathroom that is not used during the processes of exposure, it exceeds the limit with 9.2%, in relationship with what is proposed by the ARCAL. Whereas, in the CT rooms, almost all the facilities meet the dose levels allowed by the NCRP and ARCAL, with the exception of the areas 3 and 6. With the results obtained, it is recommended to include a radiological safety officer, for corroboration of this data.